8 Facts You Need To Know About Hepatitis

8 Facts You Need To Know About Hepatitis

 April 27, 2022   Return

WORDS ABRAHAM MATHEW SAJI

Our liver is one of the major internal organs of our body that works nonstop to purify our blood as well as to produce and store essential micronutrients that are required by our body. When the liver is infected or sore, it fails to perform its functions and this results in the signs and symptoms manifested by hepatitis. The word hepatitis is a combination of hēpar or hēpat, which means liver in ancient Greek, and itis (the Greek word for inflammation). Thus, hepatitis simply means inflammation of the liver.

  1. What Are The Causes Of Hepatitis?

Inflammation of the liver can be caused by various conditions, illnesses, some foods and drinks, certain medications and also viruses. Speaking about viruses, virus types A, B, C, D, E, F and G have been reported to cause infectious hepatitis. With medical advances and our quest for knowledge, the alphabetical list will only get longer. The most common are hepatitis A virus (HAV), hepatitis B virus (HBV) and hepatitis C virus (HCV). Of these, HBV and HCV can cause chronic hepatitis that can lead to conditions of liver cirrhosis and also liver cancer if left untreated.

Hepatitis A infections are often mild and can be treated easily compared to the others. Upon treatment and recovery, patients get immune to the virus. There is also a safe and effective vaccine available. This type is more common in places with poor hygiene and sanitation conditions.

Hepatitis B and hepatitis C infections can be caused by one or more of the following:

  • Sharing needle with infected person
  • Having unprotected sex with infected person
  • Sharing personal items like toothbrush and razor blade with infected person
  • Receiving a blood transfusion from an infected person
  • Having a tattoo created using an unsterile or infected needl
  • Bitten by an infected person
  • Through lactation from an infected mother
  • When the virus enter through a break in the skin.

Both HBV and HCV infections are treatable, depending on the severity of the infection. There is a safe and effective vaccine available to protect us from HBV. However, there is no vaccine yet against HCV. Ongoing research and medical advances may result in more effective prevention and treatment options soon.

  1. What Are The Symptoms Of Hepatitis?

From the time when a person is infected with the virus to the development of symptoms is known as the incubation period. Each type of virus has varying incubation periods eg, 15–45 days for HAV, 45–160 days for HBV and 14–180 days for HCV. At the initial stages—also referred to as acute phase—some of the common symptoms are:

  • mild-to-moderate fever
  • loss of appetite
  • fatigue muscle and joint aches
  • nausea
  • vomiting
  • diarrhoea
  • abdominal pain
  • weight loss.

Symptoms of chronic hepatitis

 When the acute phase is left untreated, the disease progresses to the long-term (chronic) phase with the following symptoms:

  • moderate-to-high fever
  • jaundice
  • abdominal swelling
  • swelling of lower extremities of the body
  • yellowness of skin, eyes and tongue (jaundice)
  • blood in vomit or faeces
  • itchy skin
  • dark urine
  • hives
  • liver cirrhosis
  • increase in liver enzymes and tumour markers
  • liver cancer.
  1. How Is Hepatitis Diagnosed?

As the symptoms of most infectious hepatitis are common, the diagnosis of the type and degree of infection can be done by thorough laboratory investigations like:

  • Pathological blood tests that can detect the levels of enzymes, proteins and antibodies
  • Pathological nucleic acid tests that can confirm the type of virus and its numbers
  • Scans that can detect inflammation and any damage to surface of the liver
  • Paracentesis, where a sample of the abdominal fluid is extracted and tested
  • Liver biopsy that can detect cancer and extent of liver damage
  • Elastography that measures stiffness of the liver
  • Liver function tests that can help to identify liver disease.
  1. What Are The Treatment Options For Hepatitis?

There is a wide array of treatment options available today and will depend on factors like:

  • Type of infection
  • Degree of infection
  • Age and other underlying conditions of the person.

The treatment dose and duration may also be prolonged based on any or more of the above factors. Advances in research have seen treatment options moving from chemical-based medications to biotechnological interventions like monoclonal antibodies.

  1. How Can We Prevent Hepatitis?

As the old adage goes, “An ounce of prevention is better than a pound of cure.” Some of the steps we can take to prevent being infected by hepatitis viruses are:

  • Avoid injecting illegal substances into our body
  • Avoid sharing of needles, toothbrushes, razors and other personal care items
  • Practice safe sex
  • Seek and share information with partner about any infection
  • Wash hands properly with soap and water after using the toilet
  • Consume safe drinking water
  • Eat clean and fresh foods
  • Ensure needles used in body piercing or tattoo have been sterilized
  • Avoid or drink moderate amounts of alcohol
  • Consult doctor for vaccination against HAV and HBV.
  1. Love your Liver!

Here are some key steps we can take to ensure our liver stays healthy:

  • Eat healthy and balanced meals
  • Eat small portions of meals that can be easily digested
  • Exercise regularly
  • Maintain a healthy weight
  • Avoid or drink moderate amounts of alcohol
  • Consult doctor to ensure the medications we take don’t harm our liver
  • Consult doctor before taking supplements
  1. Is Recovery Possible?

Complete recovery from infectious hepatitis can be considered when:

  • The causative virus has been completely removed from the bloodstream and liver
  • Antibodies have been detected in the blood pointing to immunity
  • The associated symptoms, which occurred during the infectious state have improved.
  1. What Is The Situation In Malaysia?

In 2017, there was an estimated 1 million people who were chronically infected with HBV and an approximate 800,000 were positive for antibody to HCV. An effective nationwide vaccine coverage and the availability of affordable and effective treatment, which has been made possible by the Ministry of Health have been the reasons for these numbers being under control. Based on the newborn vaccination schedule, every newborn would have been immunized against HBV by the age of 6 months, with progressive doses at 1, 2 and 6 months. HT

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Impacted Wisdom Tooth

Impacted Wisdom Tooth

 April 27, 2022   Return

Capture

Dr Andrew Chan Kieng Hock

Consultant Oral Surgeon Private Dental practice

Klang, Selangor.

Wisdom tooth surgery is one of the most common minor oral surgical procedures performed in the dental clinic setting by a dentist, often under local anaesthesia (LA). But some complex and challenging cases are best undertaken by a trained consultant oral surgeon or an oral and maxillofacial surgeon, to minimize post-operative side- effects. Dr Andrew Chan Kieng Hock explains the finer points of wisdom tooth surgery and how to survive it with as little discomfort as possible.

Figure1_IMG-0009

Figure 1: Panoramic radiograph showing impacted lower left wisdom tooth.

Photos by Dr Andrew Chan Kieng Hock

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Figure 2: Clinical view of the partially impacted tooth.

To Remove Or To Retain?

Usually, a wisdom tooth—or better known as a third molar— erupts in the oral cavity between the ages of 18 and 25 years. However, it is not uncommon for a wisdom tooth to emerge at a later date in some people. As a matter of fact, this tooth is the last molar and the final adult tooth to erupt. Most people will feel some form of discomfort, pain, swelling, or even fever during the phase of eruption.

The accurate definition of an impacted tooth means a failure to completely erupt into a normal functional chewing position due to insufficient space (limited jaw arch); an obstruction by another tooth; an abnormal development of a tooth position (ectopic position); and sometimes, but very rarely, due to a tooth being fused (ankylosed) with the alveolar bone.

A tooth is said to be completely impacted if it is entirely covered by the gum and/or the alveolar bone in the jaw hence rendering it clinically invisible. A partially impacted tooth is clinically visible but has failed to reach the functional chewing position.

Some studies among adults show that the prevalence of one or more impacted wisdom teeth is around 25% to 73%. The reason for the huge difference is mainly due to the fact that some dentists in certain countries believe strongly in prophylactic or preventive removal of asymptomatic wisdom tooth while dentists from other countries don’t. There are obvious differences in the consensus among dental practitioners from country to country. To overcome the differences, several established dental bodies and healthcare policymakers have produced certain guidelines and best clinical practice which are regularly updated to help surgeons make a more sound and objective decision in the management of impacted wisdom tooth. One such guideline is by the UK National Institute for Health and Care Excellence (NICE).

In this article, some of the more common reasons for surgical removal of impacted wisdom tooth and its associated side- effects are discussed.

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Figure 3: Panoramic radiograph showing right lower wisdom tooth associated with dentigerous cyst.

Indications To Remove A Wisdom Tooth

There are various valid reasons to remove an impacted wisdom tooth before it develops harmful side-effects. Each tooth and each individual’s circumstances are unique. Therefore, the decision to remove must be solely based on careful risk-benefit assessment.

If a tooth is at high risk of developing a disease, the decision to remove it is justifiable. On the other hand, removing a healthy tooth is unjustifiable.

The following summarizes the most common indications for removal:

  • Unrestorable dental decay due to area of food and plaque stagnation between the wisdom tooth and the adjacent molar.
  • Non-treatable pulpal/ periapical infection
  • Infection under the gum flap of the tooth (pericoronitis). Cited as the most frequent reason for removal of impacted wisdom tooth but only after the second or subsequent episodes unless the first attack is very severe. Occasionally, the surgeon may decide to just excise the gum flap (operculectomy) using a blade or a laser to facilitate the tooth eruption. However, the risk of recurrence is always a possibility.
  • Widespread inflammation of soft tissue (cellulitis); collection of pus (abscess); and bone infection (osteomyelitis), all of which are usually due to untreated pericoronitis.
  • Braces (orthodontic) considerations whereby, wisdom teeth must be removed for proper retraction and alignment of the upper and lower teeth. However, there is little evidence at the moment to support the removal of wisdom teeth solely to prevent crowding of front teeth.
  • Prophylactic removal due to specific and serious medical and surgical conditions such as abnormal heart valves which are prone to infective endocarditis, organ transplants, hip and joint replacement implants; chemotherapy, and radiotherapy.
  • To facilitate tooth restoration including dental prosthesis. For example, an impacted wisdom tooth under an existing denture.
  • Internal/external tooth resorption including the adjacent tooth.
  • Tooth in the line of fracture which will hinder the management and healing process.
  • Fractured wisdom tooth.
  • Cyst/tumour development such as dentigerous cyst and ameloblastoma.
  • Tooth hindering reconstruction jaw surgery.Tooth involved in the zone/ field of radiation or tumour resection.
  • Tooth used to act as a suitable donor for intentional tooth transplantation.

If surgical intervention is not warranted, a constant periodic monitoring every 6 to 12 months by clinical or radiograph examination is essential because of the future changes in position and/or pathology. The relative risk of retaining an impacted wisdom tooth must be discussed thoroughly with all patients concerned.

In some rare  instances, the person’s occupation or circumstances may necessitate them to be away from accessing dental healthcare facility. For instance, soldiers, navy personnel, astronauts, oil and gas explorers, or even overseas students. In such instances, the decision to remove the wisdom tooth earlier than later is justifiable.

Another pertinent issue is regarding the removal of opposing or contralateral tooth. It is generally agreed that if the offending tooth is associated with the criteria, removal is warranted.

Figure4_IMG-0011

Figure 4: Surgical removal of both the upper and lower wisdom teeth.

Wisdom Tooth Surgery: What To Expect?

The surgical procedure is usually straightforward for simple cases and has a minimum potential risk and morbidity when performed by a competent surgeon using sound surgical technique. The surgeon will take appropriate medical and dental history; clinical examination, and a diagnostic radiograph before the onset of the surgery. The imaging is required to identify clearly the position of the tooth and the proximity of nearby vital structures such as the inferior alveolar nerve in relation to the wisdom tooth.

In a dental clinic setting, the procedure is most often performed under local anaesthesia or supplemented by intravenous (IV) sedation. Sometimes, it can also be performed under general anaesthesia (GA) in a hospital setting, if need be, in such cases as removal of all four wisdom teeth concurrently, or if the tooth is associated with cyst/ tumour management.

Appropriate post-operative painkillers, antibiotics, and anti-swelling medications are normally prescribed after the surgery. It is important to maintain good oral hygiene besides taking all the necessary medications throughout the healing process.

The recovery of wisdom tooth surgery, under proper care, is usually uneventful with some swelling, pain, discomfort and limitation of mouth opening. All these symptoms will resolve within a week or so. But unfavourable surgical outcomes is inevitable in some rare complex cases which include prolonged bleeding or swelling; prolonged pain, development of dry-socket (alveolar osteitis); severe lockjaw (trismus); local and/or systemic infection; osteomyelitis, violation of vital nerve structures which causes temporary or permanent numbness (paraesthesia); jaw fracture, and creation of sinus communication (oroantral fistula).

In conclusion, the verdict to remove or retain a wisdom tooth can be a daunting task to many people, and present challenges even to a practising dentist. As discussed, there are numerous factors influencing the risk and benefits in the management of wisdom tooth. Therefore, a comprehensive pre-surgical and diagnostic assessment is crucial in making the final decision after taking into consideration all the specific circumstances and the needs of each individual. A careful and competent practitioner would always keep in mind that there is no ‘one-size- fits-all’ remedy and each case should be assessed separately and carefully. HT

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10 Tips To Prevent Alzheimer’s Disease

10 Tips To Prevent Alzheimer’s Disease

 April 27, 2022   Return

WORDS PANK JIT SIN

In conjunction with World Alzheimer’s Day on 21st September, HealthToday shares 10 ways to prevent Alzheimer’s disease (AD) which were presented by Professor Karl J. Neeser, of the College of Public Health Science, Chulalongkorn University Bangkok, Thailand, at the 3rd World Congress on Anti-Aging, Aesthetic, Regenerative, Nutritional and Exercise Medicine 2019 in Kuala Lumpur.

  1. KEEP YOUR BRAIN HEALTHY

Using our brain to solve complex tasks and puzzles, and engage in discussions will help prevent the brain from growing ‘stale.’

  1. KEEP YOUR BODY HEALTHY BY EXERCISING

Exercise gets the blood flowing to all parts of the body. As we know, blood carries oxygen. The lack of oxygen interferes with the metabolism of our brain neurotransmitters. Exercise also triggers the production of endorphins, serotonin, dopamine, and norepinephrine. These are chemicals which carry signals in the brain, hence any increase in these chemicals improves brain function. Older folk can engage in yoga, tai chi and qigong as forms of physical exercise.

Click on this QR code to see what the MIND diet is all about.

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  1. EAT A BRAIN-HEALTHY DIET

In general, what’s good for the heart is good for the brain. Therefore, the Mediterranean diet, which consists of fresh fish, nuts, fruit and vegetables, and very little red meat or processed carbohydrates, is great for the brain. More recently, US researchers came up with the MIND diet, which is a modification of the Mediterranean diet, and another diet called the Dietary Approaches to Stop Hypertension (DASH).

  1. CUT DOWN ON SUGAR, ESPECIALLY FRUCTOSE

Did you know that sugar is one of the most addictive substances on earth? Yes, it is just as addictive as some drugs. Also, sugar damages our brain neurons and make them more likely to die. High levels of sugar in the brain is also linked to memory loss. Here’s the catch—fructose found in fruit is more dangerous than glucose in terms of causing damage to the brain. Therefore, we need to limit our consumption of sweet fruit, too.

  1. REDUCE STRESS

Avoid stress whenever possible as stress makes your brain release corticosterone, a type of hormone that blocks the brain from receiving and retrieving information. This is the reason why we sometimes cannot remember the details of a particularly stressful event.

  1. KEEP ACTIVE SOCIALLY

A Harvard Health Report on AD 2018 reveals that healthy social relationship with family and friends is linked to better mental longevity. Additionally, a healthy sex life contributes the same benefit.

  1. HAVE ENOUGH SLEEP

The same Harvard Health Report also reveals the clear link between sufficient sleep and lower risk of brain disease. Sufficient sleep isn’t enough though, as the sleep should also be of good quality. Lack of sufficient quality sleep causes brain plaque to build up, thus leading to a decline in brain health.

  1. GET VITAMIN D, PREFERABLY FROM SUNLIGHT

Vitamin D helps in the transfer of information in the brain. Those persons with higher levels of vitamin D in their blood are less likely to develop brain disorders such as dementia and AD. Vitamin D deficiency is also linked to a higher risk of depression and other diseases such as type 2 diabetes.

  1. MAINTAIN A HEALTHY BODY WEIGHT

Yes, everything is linked. If we eat a brain-healthy diet and exercise, then it is very likely that our weight is within a healthy range. If not, then we will have to contemplate extra measures to reduce weight. Maintaining a healthy body weight isn’t just good for the brain and heart, it is also good for the joints.

  1. PROTECT THE BRAIN FROM TOXINS AND ELECTROMAGNETIC WAVES

Pollution in the form of pesticides, mercury, cadmium, benzene, formaldehyde and many more harm our health by disrupting our biological processes. Therefore, any step we take to reduce exposure to these pollutants will be beneficial to our wellbeing in the long run. With the advent of smartphones and tablet devices, there is the worry of exposure to electromagnetic radiation as well. The claim that electromagnetic radiation is safe and within a certain limit could be a fallacy, as recent epidemiological studies suggest the only safe exposure level is zero. HT

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The Gum Disease Link In Heart Disease, Diabetes And Pregnancy

The Gum Disease Link In Heart Disease, Diabetes And Pregnancy

 April 27, 2022   Return

Capture

Dr Andrew Chan Kieng Hock

Consultant Oral Surgeon

Private Dental practice Klang, Selangor.

 

Our oral cavity is part and parcel of our body. So, there is undeniably an inter- relationship between oral disease and systemic disease where oral infections such as gum disease is linked to certain medical conditions such as heart disease, diabetes and pregnancy. There is, in fact, a large body of evidence of such an association, especially in the last 2 decades or so. Dr Andrew Chan Kieng Hock discusses the impact of gum disease on certain medical conditions.

Gum disease, a common oral disease

Gum disease is a common oral disease, which leads to tooth loss in adults worldwide. Accord- ing to the National Oral Health Survey of Adults (NOHSA) 2010 conducted by the Oral Health Division of Ministry of Health Malaysia, the prevalence of gum disease for all levels of severity was approximately 94% in den- tate group (>15 years old) and approximately 18% for severe periodontal disease (deep pocket ≥6 mm).1

There are two major types of gum disease, namely gingivitis and periodontitis. In the case of gin- givitis, the inflammatory disease is confined to the surrounding gum tissues without affecting the connective tissue attachment. But periodontitis is more severe and characterized by destruction of the underlying tooth-supporting structures such as the periodontal ligament, the alveolar bone and the cementum. It is important to note that not all cases of gingivitis will ultimately progress to peri- odontitis if patients receive timely effective treatment.

Early warning signs and symptoms of gum disease are:

  1. Bleeding gums while brushing, flossing or eating.
  2. Red and swollen gums.
  3. Persistent bad breath.
  4. Receding gums and tooth sensitivity.*
  5. Loose teeth or separating teeth.
  6. Pus between the gums and teeth
  7. Sores in the mouth.*

The Link To Heart Disease

Cardiovascular disease is the number one cause of death in Malaysia.2 Well-known risk factors include obesity, smoking, hypertension,hypercholesterolaemia, diabetes, unhealthy diet, and sedentary lifestyle.

New revelation from many scientific studies have concluded that patients with gum disease or periodontal disease are two to three times more at risk of getting heart attack, stroke and other cardiovascular complications.3

There are more than 500 species of bacteria residing inside our mouth in the form of biofilm and plaque (sticky deposit). Several studies have indicated the significant presence of periodontal pathogens eg, Prevotella intermedia, Fusobacterium nucleatum, Porphyromonas gingivalis and Actinobacillus actinomycetemcomitans using polymerase chain reaction (PCR) technique from samples of atheromatous plaque of human subjects.4

The microorganisms enter the bloodstream, move into the systemic circulation and settle on the endothelial linings of blood vessels including the coronary arteries. Inflammatory response then is triggered followed by formation of atheromatous/ fatty plaque, thickening of the blood vessel walls, narrowing of the lumen, and decreasing normal blood flow. All these events— gradually but surely—will result in blood clot, complete obstruction of blood flow and ruptured plaque which is then clinically diagnosed as heart attack or stroke.

Besides, numerous experimental data from human and animal models strongly support the association between gum disease and heart disease via the bacterial- host inflammatory mechanism or pathway. Therefore, the control of periodontal infections is important in reducing the overall inflammatory response in our body, and hence reducing the overall risk of cardiovascular complications.

The Link To Diabetes

Currently, Malaysia has 3.6 million people diagnosed with diabetes. And this figure is set to go up to 7 million by the year 2025, equivalent to a prevalence of 31.3% of adults aged 18 and above.5 Diabetes and gum disease have a mutual negative impact against each other according to numerous scientific studies. Diabetes increases the prevalence and severity of periodontal disease. Similarly, aggressive periodontal disease also increases the severity and complications of diabetes by increasing the insulin resistance in the body. This is especially true in type 2 diabetes patients who already have underlying insulin resistance.

The large majority of bacteria associated with gum disease are gram negative bacteria, which produce highly potent endotoxins. Endotoxins readily circulate in the bloodstream triggering the inflammatory response, and thus increase the levels of harmful inflammatory serum makers such as C-reactive Protein (CRP), interleukin-6 (IL-6), prostaglandin E (PGE) and fibrinogen. Subjects with healthy gums have very low levels of these inflammatory markers in the body.

Insulin resistance is recognized as a chronic inflammatory state, thus is made worse by inflammation arising from gum disease. This explains why case-control studies by several investigators have revealed that type 2 diabetes subjects who manage to control their gum disease not only have lower levels of inflammatory markers but also better control of their glucose levels.

Other well-established risk factors, which we must bear in mind are obesity, poor diet and lack of physical exercise. A good understanding of these knowledge will assist healthcare providers and their patients in the holistic management of diabetes.

Figure1gumdiseaseand...

The Link To Pregnancy

Worldwide, there has been a steady decline in infant mortality and morbidity due to better healthcare system. But the prevalence of preterm labour (gestational period <37 weeks) and low birth weight babies (<2.5 kg) remain high, and are associated with perinatal death and long-term defects. Conventionally, expecting mothers who are at high risk are those aged below 18, with a history of drug and alcohol abuse, smokers, experience stress, and have certain genetic disorders.

A pertinent risk factor that was discovered not too long ago is periodontal disease. Several investigators in this field have indicated that the relative risk for preterm birth and/or low birth weight among mothers with advanced gum disease was four to seven times higher than mothers with healthy gums after adjusting for age, race, smoking, and socioeconomic status.6 As discussed earlier, gum disease triggers an increased level of inflammatory markers in our body including prostaglandin E mediator (PGE). PGE causes early uterine contractions in expecting mothers, hence the preterm delivery of small infants.

So, what’s the conclusion?

Gum disease is a bacterial infection, which is both treatable and preventable. Bacteria and their byproducts can travel easily into a person’s systemic bloodstream via inflamed gum tissues. This triggers an inflammatory response in our body which have adverse impact on our general health with the outcomes including heart disease, diabetes and pregnancy complications. Therefore, the importance of early and effective management of oral infections— particularly gum disease—cannot be overemphasized.

Physicians and dentists should play the important role of informing their patients the interlink between oral disease and systemic disease (Figure 1), and must advise patients to seek regular dental treatment in view of the evidence. The strong case presented here is a point made for the adage: prevention is always better than cure. HT

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Peppermint Oil Helps You Swallow Better?

Peppermint Oil Helps You Swallow Better?

 April 27, 2022   Return

WORDS LIM TECK CHOON

Mohamed_Khalaf20

Dr Mohamed Khalaf

Medical University of South Carolina Charleston, South Carolina, US.

 

Peppermint (Mentha x piperita L.) has long been considered beneficial in addressing cold, cough and various ailments of the throat and respiratory system, as well as in providing relief to gastrointestinal issues such as heartburn, nausea and irritable bowel syndrome. Admittedly, clinical trials to date have yet to conclusively prove the validity of many claims associated with this herb.

A recent study, however, suggests that peppermint oil can provide relief to people who experience difficulties in swallowing as well as non-cardiac chest pain (NCCP). Let’s take a closer look at this study.

Figure A: The oesophagus is the tube-like structure that connects the throat to the stomach, and it sends food down via a series of contractions of its muscles called peristalsis.

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In a pilot study conducted by a team of researchers, 38 patients with swallowing difficulties (dysphagia) and/ or non-cardiac chest pain (NCCP) were prescribed with concentrated peppermint oil in the form of tablets. Those with dysphagia took 2 tablets before meals, while those with chest pain took these tablets on an as-needed basis.

According to the research paper as presented by the lead author Dr Mohamed Khalaf:

  • 63% of the patients reported improvements in symptoms after taking the oil.1
  • The response rate among participants who have both dysphagia and NCCP is higher (73% reporting that they felt a reduction in symptoms after treatment).1
  • None of the participants reported new or worsening symptoms; all the participants managed to complete the trial without experiencing side effects.1

The study also noted that peppermint oil offers the greatest benefits to patients with oesophageal spasm and oesophagogastric junction outflow obstruction.

PROMISING CONCLUSIONS

According to the authors of the study, their findings support the recommendation of the use of peppermint oil to relieve the symptoms of conditions associated with abnormal muscular contractions of the oesophagus. This should be done after doctors have ruled out the presence of heart diseases or obstructions in the gastrointestional system, they added.

Of course, this is a small study involving only 38 participants, so Khalaf and his team hoped that other researchers would use the study data to conduct larger scale studies in order to confirm their findings. HT

Glossary of the More Technical Words Used in This Article

  • Non-cardiac chest pain is chest pain due to issues unrelated to the heart. In most cases (and for the participants in this study), NCCP is related to issues with the oesophagus.2
  • Oesophageal spasm describes the irregular and uncoordinated contractions of the oesophagus.3
  • Oesophagogastric junction outflow obstruction is a class of rare conditions in which the oesophagus exhibits weakened or abnormal muscular contractions (peristalsis).4

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Peripheral neuropathy’s silent decay

Peripheral neuropathy’s silent decay

 April 27, 2022   Return

WORDS RACHEL SOON

“I couldn’t feel the burn!!!” Peripheral neuropathy’s silent decay 

What happens when our sense of touch misfires? What happens when your fingertips feel the pricking of invisible needles, or can’t feel the heat from an open flame? This month, HealthToday consults physician and neurologist Dr Hiew Fu Liong on the stealthy onset of peripheral neuropathy and why it often goes unnoticed, especially among diabetics and the elderly.

A tired man settles into his favourite chair at home, rubbing his feet. These days they always get numb towards the evening. Poor circulation, he thinks, but that’s just part of getting older. On the table is a basin of steaming water prepared by his wife, and he gratefully puts it on the floor and sticks his feet in to soak. He lies back in his chair, eyes closed and relaxing.

Ten minutes later,  his wife comes in and gasps, staring at his feet. Horrified, she exclaims: “That water was just boiled! It hasn’t cooled yet!” The man finds himself rushed to the hospital with second- and third-degree burns. He can see the skin peeling from his feet, but he feels nothing at all.

WHAT IS PERIPHERAL NEUROPATHY?

Peripheral neuropathy is a condition where our nerve cells are damaged in a way that interrupts or changes the messages being sent between our brain and spinal cord (known as the central nervous system, or CNS) and the rest of our body.

We can think of our body as having a phone network. Whenever we interact with the world around us with any part of our body—through sight, sound, touch, smell, or taste— electrical signals are sparked and sent through a network of fibres, called nerves, to the CNS, which helps read those signals and send new ones back. This network goes all the way to the outermost (peripheral) parts of our body and is known as the peripheral nervous system (PNS).

How do our nerves carry these electrical signals? Like phone or power cables, nerves are long and thin cells, which consist of layers of protective insulation (a myelin sheath), wrapped around a delicate electrical conductor (an axon).

If both the myelin sheath and the axon are intact, signals can travel between the CNS and the PNS as they’re meant to be. However, if either the sheath or axon are damaged, these signals may be incomplete, changed, or even fail to reach the CNS.

This disrupted signalling can cause us to feel sensations that have no physical cause. Alternately, it can also cause us to feel no sensations even when something should be triggering them. It can also cause problems with movement if the parts of the PNS leading into our muscles can’t receive signals from the CNS, which tell them how to move.

Consider two persons having a phone conversation. If the line is good, they can hear every word the other person says. However, if the line is damaged somewhere along the way, they might miss parts of the conversation, or be disconnected halfway through.

WHAT ARE THE SIGNS OF PERIPHERAL NEUROPATHY?

The trouble with peripheral neuropathy is how different the symptoms (see inset box) can be from one person to another, as well as how gradually the symptoms develop. It can go unrecognized or uninvestigated for years because early signs are usually dismissed as a natural part of ageing or other conditions.

Symptoms to look out for:

  • Tingling, burning, shooting, stabbing, and/or “electric shock”-like sensations
  • Numbness
  • Extreme sensitivity to touch
  • Tachycardia (accelerated heartbeat even when resting)
  • Muscle weakness
  • Dizziness
  • Sweating
  • Acute discomfort in the extremities (hands, feet).

Peripheral neuropathy can lack symptoms entirely during its early stages. It’s estimated that up to 50% of people with diabetes and peripheral neuropathy don’t have symptoms.

At a later stage, it can result in numbness so severe that sufferers fail to notice injuries on their limbs, especially their feet. On the other hand, some experience hypersensitivity to a degree where they are unable to feel a breeze without feeling pain.’

The most commonly affected areas are the hands and feet, but other areas of the body can also be affected.

WHAT CAUSES PERIPHERAL NEUROPATHY? WHO’S AT RISK?

More than 20% of people with peripheral neuropathy develop the condition for no apparent reason. The rest can be due to one or more of the following sources of nerve damage:

  • Complications from another disease. Globally, diabetes is the most common cause of peripheral neuropathy; it’s responsible for an estimated 35% of all cases. Cancer, infections and inflammatory diseases are also known causes.
  • Ageing, with an estimated 8.1% of people aged 40 to 49 years, and 34.7% of those aged above 80 years affected.
  • Exposure to environmental toxins, such as cigarette smoke and excessive alcohol.
  • Nutritional deficiency. A lack of essential nutrients, especially vitamins B1, B6 and B12, is known to impair nerve recovery.
  • Genetic conditions, such as mutations inherited from one’s parents or a spontaneous mutation occurring during one’s lifetime.
  • Side effects from certain medications, which may directly or indirectly affect the nerves.
  • Repetitive or prolonged nerve pressure from activities such as typing, cooking, or prolonged sitting. Carpal tunnel syndrome is a form of peripheral neuropathy.
  • Physical injury such as trauma from motor accidents, falls, or sports.

As a result, groups of people at higher risk of developing peripheral neuropathy include the elderly (over 60 years), those with diabetes, smokers, heavy drinkers, vegetarians and others on exclusionary diets, the malnourished, patients with renal impairment, and those with impaired gastrointestinal functions due to disease, medication, or recent surgeries.

WHAT CAN BE DONE ABOUT IT?

Early diagnosis is crucial. If treatment starts early enough, many cases of peripheral neuropathy can be prevented, reversed or at least controlled before nerve damage reaches a point of no return. A doctor can examine a patient by testing what sensations they feel from gentle pressure by small tools, such as tuning forks, cotton, pin, and/or a biothesiometer.

Physicians may use validated questionnaires (eg, DN4 or painDETECT), which provide a set of questions that can be scored to see if a patient might need follow- up with a specialist. The specialist can do a nerve conduction study to directly check for signs of nerve damage.

Treatment focuses on regenerating the nerves, addressing the reasons behind the ongoing nerve damage, as well as alleviating symptoms.

B vitamins at medical-grade doses (higher than those in food supplements) may help damaged nerves regenerate, particularly in patients with nutritional deficiencies due to age, lifestyle, and/or certain medications.

Some patients may need antidepressants or anticonvulsants to control neuropathic pain. Physiotherapy and rehabilitation can help restore muscle and nerve function. Adjustments to existing medications and lifestyle behaviours may also be required, but only after the risks and benefits have been assessed by a doctor.

There’s evidence that acupuncture can help relieve symptoms, but look out for a certified acupuncturist, as needles can cause further nerve damage or infection, if not properly handled.

To date, there is no single effective treatment for peripheral neuropathy, but a  combination of pharmacological and non- pharmacological treatments can collectively contribute to easing symptoms and stopping—or even curing—the disease, as long as the signs are caught in time. HT

HOME RELIEF

If you or someone in your home has confirmed peripheral neuropathy, here are some recommended steps to take at home to relieve symptoms. However, these measures should only complement, but not replace, treatment by a trained medical professional.

  • Always check hands and feet for any injuries or ulcers, especially if diabetes is also involved.
  • Keep warm as symptoms usually worsen at night or with cooler temperatures.
  • Wear gloves to sleep or reduce air-conditioning use.
  • Gloves and long sleeves also help protect the skin for those who are touch sensitive.
  • Keep affected areas out of the direct path of air-conditioning eg, while driving.
  • Certain ointments such as capsaicin gels can provide pain relief when rubbed into affected areas.

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Replacing Missing Teeth With Dental Implants

Replacing Missing Teeth With Dental Implants

 April 27, 2022   Return

WORDS RACHEL SOON

Like many couples, Shahreen Hazaline and Muhamad Shukor are a pair of complementary opposites; one bubbling over with energy and laughter, the other calmer and more soft-spoken. Yet both share similarly warm smiles when they look at each other. It’s hard to imagine that just over 3 years ago, in the middle of Shahreen’s fourth pregnancy, they found themselves facing her diagnosis of stage 3 breast cancer. For this HealthToday issue, they share their story of a road travelled together.

NOVEMBER 2014: SUSPICION

It was in the 12th week of her pregnancy when Shahreen noticed the lump in her breast that wouldn’t disappear.

“I could feel something inside, like biji-biji (seeds).” She waves a hand over her chest as she recalls. “When people breastfeed, they sometimes get lumps because of mastitis or [blocked] ducts. But those usually go away if you rub repeatedly at them. This didn’t.”

What she found doubly strange was that she wasn’t even breastfeeding anymore by then; her third child had been weaned some weeks ago. Curious, she brought the matter up to her gynaecologist on her next routine check-up. Examining Shahreen, she scheduled an ultrasound that same day.

The lump appeared to be a liquid-filled cyst. Uneasy with the results, the gynaecologist referred her to a breast surgeon, who did a biopsy.

“The surgeon didn’t say ‘cancer’, just ‘something’s wrong’. But I already started to cry a lot. I cried as we walked by people in the hospital, like someone had passed away.” Shahreen mimics a dramatic wail, then laughs. “It was bad enough before with the hormone imbalance from pregnancy. My gynae referred me to a counsellor; I think she was alarmed at how upset I was.”

The surgeon recommended an operation to remove the lump when the baby was 16 weeks old and fully formed, to reduce any risks from anaesthesia. Alternately, they could wait until after the pregnancy, but there was a high risk the cancer—if it really was cancer—would progress rapidly in that time, especially due to Shahreen’s increased oestrogen levels.

Shahreen left the final decision to Shukor. His heart fell.

“I had to make a decision for two lives,” he tells me. “How could I let go of either one?”

In the end, they chose to go ahead with it. They felt that knowing the truth was better than uncertainty. And there was no ignoring the lump itself.

DECEMBER 2014: CONFIRMATION

A month later, they operated. The results indicated stage 2 breast cancer.

Shahreen was advised to start chemotherapy as soon as possible. Her doctors assured the couple that the baby would not be affected, as the drugs would not cross the placental barrier.

It was still frightening. They had never bothered to learn much about the disease. After all, she checked none of the usual boxes of risk factors: she had no family history, she was under 40 years old, she had breastfed all her children, she didn’t smoke or eat much junk food.

December was supposed to be their long-awaited umrah pilgrimage. But treatment couldn’t be postponed, the oncologist said, as the cancer could go far in 2 weeks. Neither could she start treatment before the trip; her immune system would be so weak that the crowds at Mecca would put her at risk of infections.

Instead of boarding a plane, Shahreen found herself entering the hospital’s cancer centre, where she saw a patient being wheeled out from a chemotherapy session. Right before her eyes, the woman abruptly vomited in the hallway. She wondered if that would be her eventually, too.

How did this happen? In her mind, thoughts overcrowded. Day and night, she couldn’t stop crying. Cancer is a taboo in Malaysia. How will people react to the news? What have I done wrong? Was it a sentence by God, a kind of retribution for something I’ve done?

In fact, just 2 weeks before, Shahreen had resigned from her job in the government and joined her husband to work as an independent unit trust agent. She wondered if other people would point fingers at things like that, saying she had brought the cancer on herself. Maybe it was sceptical of her, she says, but it was a real fear.

She asked Shukor to keep her diagnosis a secret. Only their respective parents and Shukor’s older brother were informed, and Shukor always obtained her consent first before telling anyone new.

At one point, she tried sending an email to the National Cancer Council Malaysia (MAKNA), the only cancer society she knew then.

“I told them about my diagnosis. They replied and asked for my phone number; they wanted to advise me.” Shahreen smiles. “But I backed off, because I was afraid.”

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JANUARY–FEBRUARY 2015: STRUGGLE

Shukor did his best to support his wife in her isolation. She was scheduled for six cycles of chemotherapy up to April, each lasting 3 weeks.

“It was a very stressful time for her,” he tells me. “So I took her to the hospital whenever she wanted to go, stayed with her when she was admitted to the ward. I let go of a lot of other things to spend more time with her.”

It helped that their self-employment allowed some flexibility. Nevertheless, finances were a struggle. No longer eligible for a government employee’s medical coverage, Shahreen had a private medical card, but with how recently it had been obtained, she and Shukor would still need to pay for the first few hefty bills out of pocket first.

But there was little choice. She was pregnant and needed treatment as soon as possible.

“We had to tighten our belts. It definitely affected the time I had for the business. But if I was working under a company, I wouldn’t have been able to take so much leave.” Shukor’s smile is soft as he looks at his wife. “Because I was working independently, I could take care of her more.”

Was it frustrating for him at any point to be a caregiver? Shukor shakes his head.

“It was more a sadness. Everybody who has a life partner, a spouse … they already have things planned for their lives, right?” He takes her hand. “So when something like this happens, those dreams—you just keep them aside to deal with whatever is happening to her, right now.”

MARCH 2015: COMING TO TERMS

Things changed for Shahreen when she met another cancer survivor for the first time.

Her counsellor had advised her to come for a patient support group meeting at the hospital. But being afraid, she made up her mind to arrive late, hoping it would have finished without her and she wouldn’t have to actually talk to anyone.

“But when I arrived, as it turned out, the meeting had been cancelled.” She laughs. “The counsellor was like—’what a pity, she’s come all this way’ and tried to find something else for me.”

Coincidentally, there was an ongoing art exhibition in the hospital by Elaine Therese Lim, a painter who had survived ovarian cancer. The counsellor introduced Shahreen to her and left them to talk.

“So we chit-chatted … and I told her all the things I was feeling. And she said to me: the fact you got this disease isn’t because God wants to punish you, or that you’ve made a mistake. None of that. If God wants to give it, anyone can have it. There’s no need to think so hard on the reasons.”

It was like a weight lifted from Shahreen’s shoulders.

“After meeting her and being comforted by her, I felt really good. It was the first time I’d met a cancer survivor. And I started to accept the fact that … okay, I’ve got this. Fine. So get through it.”

A few days after that encounter, Shahreen opened her Facebook page and posted, for the first time, a status update acknowledging she had cancer. Dated 15th March 2015, it begins with: “God always has a better plan.”

“To my surprise, there was no negative feedback,” she says. “All of my friends just gave encouragement and support.”

It emboldened her and removed her doubts. In subsequent posts, she wrote all the details down: about her disease, about the chemotherapy she was going through, about the ‘chemo baby’ she carried.

“After meeting Elaine Therese, I thought: why not share these things?” Shahreen smiles. “I thought it might help someone out there who needed—not the medical details, but the knowledge that it can be done, even during a pregnancy. Maybe one of the reasons God gave me the cancer was so I could do that.”

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APRIL 2015: DELIVERY

At the end of April, Shahreen’s fourth child, Zhafran, arrived with no complications. To her relief, she was able to give birth to him naturally as she had her other three children; as her gynaecologist had promised, the chemotherapy had no effect on that.

She shows me a phone photo of a healthy, chubby-cheeked young boy sitting in front of a plate of cake.

Alhamdullilah, he’s okay. He turned 4 on 28th April this year.” She beams as she swipes through more photos of her son’s birthday celebration. “In fact, when I gave birth to him, he was around 3.85 kg! That’s normal for our family. My eldest was around 3.95 kg.”

Unlike most pregnant women, Shahreen’s overall weight had remained unchanged for months until her delivery date. Her body had been shrinking while her son’s had been growing.

Two weeks after Zhafran’s birth, Shahreen left him in the care of a friend while she underwent a positron emission tomography (PET) scan and a second operation on her lymph nodes. Due to the involvement of radioactive particles, she wasn’t allowed to be near her son for some days.

After the operation, based on the number of affected lymph nodes and the size of her tumours, the doctors modified her diagnosis to stage 3 breast cancer, which initially shocked her. Hadn’t she been doing chemotherapy all this time? But it was explained that the initial diagnosis had been incomplete as they couldn’t assess more than the breast lumps while she was pregnant.

Furthermore, many cancer cells in the lymph nodes were dead, which meant the chemo was working. Shahreen would still have to go through another four cycles of chemotherapy on a different medication, with an additional month of radiotherapy, but there was hope.

To her disappointment, unlike with her previous three children, this meant she would not be able to breastfeed her newborn son for his first year. Patients undergoing chemotherapy were generally recommended to wait until 6 months after their final cycle to prevent health risks to the child.

“Even with a pill to suppress the milk, it would just come out, and I would have to let it be.” Shahreen pauses, for once without a smile. “You have to understand … I breastfed my first three children until all of them were 3. When it’s something so natural to you, to have to just wipe or throw it all away … it felt very sad.”

MAY 2015, AND ONWARDS: LIFE GOES ON

When I ask if they had childcare issues, the couple exchange looks and laugh.

“He can cook very well!” Shahreen says proudly. Shukor is more self-deprecating and explains that they had a hired helper to take care of the children. Though yes, he did cook as well.

With her eldest being 8 at the time, the couple aren’t sure the children understood what their mother’s illness meant, even with her weight loss, her falling hair and eventually (with Shukor’s help) her shaved scalp.

“We explained to them that mum was ill. But for them, ‘being ill’ normally meant having a fever for a little while and then getting better, right?” Shukor says. “Something like cancer, that goes on for months … it was a bit harder to understand, I think.”

Shahreen thinks that the sense of normalcy was also helped by the fact that she never had to stay at the hospital for more than 2-3 days at a time, even during her initial cycles. By the third cycle, she was asking the oncologist about going back to work, and got the green light based on her blood count and her physical condition.

“I was bored staying at home and not going anywhere. So I would do chemo, and after 2-3 days I would just go out and work. The children didn’t seem to notice a difference.” Shahreen raises an eyebrow. “Is that a good or a bad thing?”

One of the things Shukor also had to handle was a barrage of well-intended recommendations for alternative treatments from others. He tried to filter through them with the help of Shahreen’s doctors and friends of his own who had medical backgrounds.

One of them, who had done research in the field of alternative medicine, explained to the couple that clinical research was a multi-stage process, and some products labelled as ‘clinically researched’ might have only been tested in animals.

“After learning more about it, I thought it’s better to follow what the doctors said.” Shukor smiles. “Especially because she was pregnant, I didn’t want to take the risk on whether the hospital’s medicines and alternative ones would complement or fight each other.”

Shahreenhiking2017

DECEMBER 2015: REMISSION

Thirteen months after her diagnosis, the doctors declared Shahreen no longer needed treatment. She was to come in for a follow up every 6 months; in 2018, the oncologist changed it to once a year.

Even though it’s been more than 3 years, they still feel the difference in their lives.

“When you’re healthy,” Shukor says, “you feel like you’re going to live till 60 or 70 years old. But when something happens, you feel like your life will be shorter … everything we planned for the long term needed to be adjusted.”

“Before this, we used to think: okay, we have a lot of time, we can do whatever whenever, next year, or the year after,” Shahreen adds. “Like—when I was in secondary school, I was a hiker. But after getting married, I just stopped, thinking that’s something from the school days, no time for that now.”

In 2017, Shahreen hiked up Mount Kinabalu with a group of fellow survivors. It was one of over 10 mountains and hills she tackled that year. She also launched herself into things she had never considered doing before, like dragon boat racing and bowling with others from the Breast Cancer Welfare Association (BCWA).

“At university, I used to work part-time at a bowling alley. We had free games, but I never played, always thinking ‘oh no, what if my ball goes in the drain and people laugh at me?’” Shahreen grins. “But now I’m more open to whatever happens. ‘Just do it!’ Us survivors, we feel like we have a second chance. There’s so many more things we want to try.”

I ask if the two of them have advice for those starting their own cancer journeys, or with loved ones doing so.

“Don’t wait,” they both say.

Shahreen tells me about stories from her support groups; people would delay their treatment, looking for alternatives, only to come back when the cancer had progressed even further. It was ironic, she says, that people were willing to entrust hospitals with a credible diagnosis of their condition, but not with credible treatment.

To friends and family of patients, the couple also advises that they not add too much stress to the patient, and instead try to find means of emotional support.

“When someone has cancer, they’re already weighed down by heavy thoughts,” says Shukor. “Things like how easily the cancer can spread, or when they’re going to die.”

“The easiest thing you can do is to find them a support group, whether on Facebook or elsewhere. Those groups have survivors, even doctors,” Shahreen adds. “A patient can sometimes be afraid of taking that step. Help take them there.”

“Also? Don’t Google everything.” They laugh together. HT

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STOP! For goodness sake

STOP! For goodness sake

 April 25, 2022   Return

WORDS PANK JIT SIN

If you’re wondering what it is I’m asking you to stop, well, it’s smoking. I recently had a friend pass away from lung cancer. He had stopped smoking for 8 years by then and picked up healthy exercise habits. It wasn’t enough and after 3 years of battling the disease, he succumbed on 2nd August this year. Smoking is very much a man’s disease as many more men smoke compared to women. The World Health Organization (WHO) puts the number of smokers at 1 billion—800 million are men and 200 million are women. As November is Men’s Health Awareness month, let’s see what we can do to help smokers quit. HealthToday speaks to reader Keo Chia who managed to kick the addiction some years back. Smoking cessation comes with many benefits, among which are improvements in lung function, reduction of cardiovascular disease risk and reduction of cancer risk.1

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Keo during his interview.

It’s not you, it’s me

We asked Keo what his main driver was behind the decision to quit. Was it his children? Was it his wife? Or was it his health? He says, “I tried quitting cigarettes a few times before finally succeeding. Before that, I couldn’t last more than 1 or 2 days before the overwhelming urge to smoke took over.”

Things stayed the same with Keo trying to quit smoking once every few months due to nagging from his family or urging from friends. This constant trial-and-failure cycle is a typical trait of those looking to quit smoking. According to the US Centers for Disease Control and Prevention (CDC), a smoker tries to quit between eight and 10 times before succeeding. However, a 2016 Canadian study says it could take a smoker almost 30 trial-and-failure cycles before finally winning the fight against smoking.2

Things remained pretty much the same until one day, Keo got fed up of failing and told himself, “I WILL quit this time.” Instead of going cold turkey or cutting down on cigarettes like he did previously, Keo decided to use a nicotine patch. He approached a pharmacist near his home and received some counselling on how to use them.

The first time he put the patch on, Keo discovered he was feeling nauseous and dizzy. “I thought I was sick,” he says. However, the patch worked, and he didn’t feel the urge to smoke at all. The symptoms went away gradually over the next few days and he used the patch for 2 weeks.

After 2 weeks, Keo cut the patch into two, effectively halving his dose. This is not recommended, as suddenly halving the nicotine dose could trigger an urge to smoke. Ideally, he should have purchased the patch with a slightly lower dose to reduce the risk of smoking relapse. Luckily, Keo did not face this problem. Again, he wore the patch, this time closer to 3 weeks. When he felt he was ready, he again reduced the dose by half. At the end of 2 months, he could go without cigarettes and even without the patch!

It was the happiest he had been for a long time. There was a sense of achievement and overwhelming pride that he no longer needed to subject his new family (he had just settled down and had a baby by then) to secondhand smoke exposure. He says, “Remember, the decision to quit must come from yourself. Until you make that decision, the urging and nagging by others won’t work.”

It is an addiction

More evidence is emerging that a lot of our vices is the result of an imbalance in our brain’s chemicals. Cigarettes contain nicotine and many other chemical compounds. While we tend to think nicotine is the only addictive substance found in cigarettes, a 2007 study discovered that many additives in cigarettes enhance the addictive nature of nicotine and some mask the side effects, thus making it more pleasurable to the smoker.In the study, the scientists arrived at the conclusion that “documented cigarette additives have pharmacological actions that camouflage the odour of environmental tobacco smoke from cigarettes, enhance or maintain nicotine delivery, could increase addictiveness of cigarettes, and mask symptoms and illnesses associated with smoking behaviours.” 

It is, therefore, no wonder that smoking is so hard to quit once a person begins. Of course, one could say that smokers shouldn’t have started smoking in the first place, but we all make mistakes. The most important thing to do now is to focus on what can be done to help a smoker should they decide to stop.

While the nicotine patch is a commonly used smoking cessation tool, there are other options out there. Another example is the nicotine chewing gum. For some smokers, the action of putting cigarette into the mouth is a harder habit to break than the actual act of smoking. The act of chewing gum can help to attenuate this condition and also prevent the weight gain associated with this behaviour.

If both the patch and gum are not helping, there’s also the option of taking a pill known as varenicline. This is a prescription medicine and may affect the mood of the person. This is because it affects the reward pathways of the brain, preventing one from getting any pleasure from smoking. One should seek a doctor’s advice before embarking on this option.

Smoking and cancer are definitely linked

When a cigarette burns, it releases 5,000 to 7,000 chemicals, of which about 60 are known cancer-causing agents. Apart from nicotine, these include tar, ammonia, acetone, methanol, butane, and hexamine.3,4

We often think about lung cancer when talking about smoking. However, there are many other cancers which are linked to cigarette smoke. These include cancers of the mouth and throat; oesophagus, colon and rectum; bladder, kidney, stomach, and cervix. If we think about it, the chemicals from cigarette smoke stay in our mouth and as we swallow, they pass through the throat, into the stomach and come into contact with every part of our digestive system. Those of us who don’t smoke can always tell if the person using the toilet before us is a smoker based on the smell left behind after they urinate.5

Relapse

Just like any other addiction, a person who has quit smoking can relapse and pick up cigarettes again. Some people ‘slip’ during their journey to smoking cessation. This means the person sneaks a cigarette or a puff. This isn’t considered a relapse. Relapse refers to a return to regular smoking.7

It is important not to be judgmental about smokers who relapse. If you’re a smoker, remind yourself that this is a temporary setback and don’t look at yourself in a negative light. Remember that it is a battle with addiction and many battles will have to be fought before the war can be won. Even before a person starts his or her smoking cessation journey, it is helpful to know what happens should a ‘slip’ or relapse occur.

Did you know?

The nicotine patch does come with its own set of problems. Some side effects users often face include skin irritation, nausea, headache, vomiting, and diarrhoea. These symptoms are usually manageable and can be acceptable if the user is mentally prepared and properly counselled.

Did you know?

Lung cancer is the most common cancer occurring in men and the third most common in women. Approximately 2 million people were diagnosed with the disease in 2018.

Did you know?

Your risk of developing lung cancer takes many years to return to normal after stopping smoking? In total, it takes about 15 years before the risk of developing lung cancer drops to that of a person who has never smoked.HT

References:
1.https://www.who.int/tobacco/quitting/benefits/en/

2. Chaiton, M., et al. (2016). Estimating the number of quit attempts it takes to quit smoking successfully in a longitudinal cohort of smokers. BMJ Open;6:e011045.

3. Cancer Research UK. What’s in a cigarette? Retrieved from https://www.cancerresearchuk.org/about-cancer/causes-of-cancer/smoking-and-cancer/whats-in-a-cigarette-0.

4. Irish Cancer Society. What’s in a cigarette? Retrieved from https://www.cancer.ie/reduce-your-risk/smoking/health-risks/whats-in-cigarettes#sthash.zAwkOexD.dpbs.

5. Siegel, R.L., et al. (2015). Deaths Due to Cigarette Smoking for 12 Smoking-Related Cancers in the United States. JAMA Intern Med;175(9):1574–1576.

6. Rabinoff, M., et al. (2007). Pharmacological and chemical effects of cigarette additives. Am J Public Health;97(11):1981–1991.

7. Smokefree.gov. Slips & Relapses. Retrieved from https://smokefree.gov/stay-smokefree-good/stick-with-it/slips-relapses.

8. World Cancer Research Fund. Lung cancer statistics. Retrieved from https://www.wcrf.org/dietandcancer/cancer-trends/lung-cancer-statistics

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A Cancer Among Men

A Cancer Among Men

 April 25, 2022   Return

WORDS HANNAH MAY-LEE WONG

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Dr Hemanth Kumar Ramasamy

Consultant Urologist & Laparoscopic Surgeon

Following this month’s theme and focus on men’s health, Dr Hemanth delves deep into the topic of prostate cancer, one of the most common types of cancer in men.

The prostate, an organ found exclusively in men, is roughly the size of a walnut. It is a gland that produces seminal fluid, which protects, nourishes and helps transport sperm. “The prostate makes 30% of semen. These fluids are essential for the sperm to survive when it is being sent to the female vagina. It’s got lots a minerals and nutrients for the health and wellbeing of the sperm,” Dr Hemanth explains.

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Although the prostate plays a vital role in male reproductive process, prostate cancer rates have been on the rise, and this is certainly an issue men should take note of. Dr Hemanth tells us more in detail.

How common is prostate cancer among men in Malaysia?

From a global perspective, prostate cancer rates are the lowest in South East Asia compared to the rest of the world. Prostate cancer is quite common in the UK, and very common in the US. It is also seen more frequently among the African and American black population.

“Prostate cancer has risen to become the 3rd most common cancer among men.”

In Malaysia, data from the 2007-2011 Malaysian National Cancer Registry Report showed that only six in 100,000 people developed prostate cancer, making it the 5th most common cancer among men at the time. It’s worth noting that in the past, there were fewer urologists, screening tools and overall less awareness on the disease. A recent study conducted by the  Malaysian  Prostate  Cancer Study Group (M-CaP) in 2018, found that prostate cancer has risen to become the 3rd most common cancer among men, occurring in every 12 per 100,000. The breakdown of demographics showed that prostate cancer is most common among the Chinese population, followed by Malays.

Urologists deduce that some of the reasons for the rising numbers could be attributed to: men in Malaysia living longer lives, our shifting diets towards a more western palette (the exact reason for this is still unknown, however studies have shown that a western or meaty diet increases the risk of developing prostate cancer). For example, Japan is a country where prostate cancer incidences are very low. But when we look at the Japanese that have migrated to the US (especially those who are 2nd generation migrants), we notice  that their incidences are higher than the Japanese men living in Japan. Therefore, prostate cancer risk could have lots to do with environmental factors.

What are the risk factors of prostate cancer?

The most common risk factor is age. 80% of prostate cancers are picked up after the age of 60, and prostate cancer in men below the age of 45 is rare.

Genetics could be a factor. Prostate cancer is more common in African Americans and Caucasians, and less common in the Asian population.

Family history is very important. If a man has a 1st degree relative who has prostate cancer (like dad or brother), his risk of developing prostate cancer may be higher, and familial prostate cancer tend to appear earlier.

What are the signs and symptoms of prostate cancer?

This depends on which stage of prostate cancer a man is in. In the  early stages, there could be no signs and symptoms. Some cases of prostate cancers are accidentally picked up during routine screening tests.

Some men may get symptoms of the lower urinary tract such as: difficulty in passing urine, having a burning sensation during urination, going to the toilet more often, dribbling after urination and so on. These could be the early indications of prostate cancer, but most of the time, these symptoms are associated with benign prostate hyperplasia (BPH)—an enlarged prostate, which is much more common in Malaysia.

For those with late stage prostate cancer where metastasis has occurred, they may get symptoms mainly associated with the bones, as the bones are commonly where the prostate cancer first spreads to. Prostate cancer lesions in the bone are very typical—they’re called sclerotic lesions and can be picked up relatively easily.

How often should men get their prostate checked? What are the tests available?

With the rising awareness of prostate cancer, screening is becoming more common. Usually, screening can be done in men who are above 50. Patients who have relatives with prostate cancer can opt to do screenings from as young as 45.

Screening is done via a prostate- specific antigen (PSA) test and rectal examination. When a screening programme is carried out, a couple of other tests are usually included, namely: the urine test, ultrasound and uroflow (to test urine flow for possible obstructions). Urologists also would take a detailed clinical history and may ask the patient to complete the International Prostate Symptom Score (IPSS) questionnaire.

What are the treatment options for prostate cancer?

A patient’s treatment plan would depend on several different factors including the patient’s age, the aggressiveness of his cancer and whether the cancer has spread. A trans-rectal ultrasound biopsy is usually done if the possibility of prostate cancer is picked up by a PSA test or rectal examination. It involves using a specialized probe which is put through the rectum, and biopsy samples may be taken through a needle. Small cuts of samples are taken from 12 different areas of the prostate, and these are sent to a pathologist for determining the aggressiveness (grade) of the cancer cells. Several other scans, such as bone scans, MRI or CT scans may be used to determine if the cancer has spread beyond the prostate.

Surveillance

For low-risk patients, doctors can offer patients active surveillance. Treating too early may result in complications of treatment such as erectile dysfunction, incontinence, issues with passing urine,  blood in the urine, etc. That’s why for patients in this category, doctors may try to delay treatment as much as possible. During active surveillance, the patient sees his doctors every 3 months for follow-up rectal examinations and blood tests. Every 1 year to 18 months, a urologist may perform another biopsy to monitor the cancer’s progress. If signs show that the cancer is progressing, the patient may opt for treatment.

Watchful waiting is another option, for patients with a less aggressive cancer or for those who are advanced in age.

Radiotherapy & Surgery

For intermediate and high-risk patients, definitive treatment options such as radiotherapy or surgery are available. Radiotherapy can be divided into external beam radiation and brachytherapy. With external beam radiation, radiation comes from outside the body and is directed to the prostate cancer. With brachytherapy (there’s a certain criteria for patients who are suited for it), radioactive seeds are placed into the prostate, and these seeds deliver low doses of radiation over time to kill cancer cells. The surgical option is called a radical prostatectomy. It can be done as open surgery or via robotic prostatic surgery.

Hormonal Therapy

For patients who have locally invasive and metastatic disease, they can consider hormonal therapy. Prostate cancer is fuelled by testosterone, and hormonal therapy is used to cut down testosterone levels in the body—in doing so, cancer cells may die off. Sometimes, hormonal therapy may be given to those with locally invasive disease, to shrink the tumour first, before going for radical surgery. If the newer hormonal therapies don’t work for patients with metastatic disease, they can choose to go for chemotherapy.

In summary, patients should work with their doctors to choose a treatment plan most suited to their condition. HT

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Venom From A Deadly Spider: A Solution For Erectile Dysfunction?

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 April 25, 2022   Return

WORDS LIM TECK CHOON

The Brazilian Wandering Spider (Phoneutria nigriventer) is known as one of the world’s most venomous spiders for a good reason. Its venom can cause its victims to experience paralysis, shutdown of the nervous system, irregular heartbeats, and often, death. It also causes painful, prolonged erections in men. Yes, you read that correctly.

Always the type to look at silver linings, a team of researchers in Brazil recently managed to create a substance similar to PnTx2-6, a component of the venom, in hopes of developing a medication for erectile dysfunction that can be used safely by men with diabetes and high blood pressure.

You see, erectile dysfunction is commonly seen among men with those two health conditions, but currently available medications may not be an option for them. Tadalafil, for example, should not be taken alongside nitrate medications for heart problems, as this may lead to sudden and serious drops in blood pressure.

So far, research on mice with induced diabetes and high blood pressure found that the synthesized substance, called PnPP-19, does work to restore the ability to have an erection. This effect is seen when PnPP-19 is applied topically (on the skin) as well as injected directly into the mice.

More research is needed to support this finding and to determine whether the same effect will be seen in humans. Still, it’s a testament to the marvel of nature that a deadly toxin may end up providing a solution for the happiness of human beings! HT

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Reference: Nunes da Silva, C., et al. (2019). PnPP-19 peptide restores erectile function in hypertensive and diabetic animals through intravenous and topical administration. J Sex Med;16:365–374