ARTICLES

Article
How do you feel when you have high blood pressure?
In this video Dr Michael MacDonald (Singapore Cardiologist) explains how most people feel when they have high blood pressure. The simple fact of the matter is that high blood pressure is also called "The Silent Killer" for good reason. Most people have no symptoms whatsoever! High blood pressure slowly damages your blood vessels all over your body leading to heart attacks, kidney failure, strokes and death.
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Top 5 ways to lower high cholesterol naturally
Your doctor's told you you have high cholesterol! You will be at a higher risk of heart attack and stroke. So what can YOU do about it?? The first thing to do is take the cholesterol-lowering medication if your doctor has recommended it. But that's not all. There are simple dietary tricks you can do to lower your cholesterol naturally. In this video I explain the 5 most effective, scientifically proven techniques to bring your cholesterol down. This includes the single most important supplement that has been proven to work.
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What are the symptoms of high cholesterol?
High cholesterol leads to premature blockages in the heart arteries, heart attacks and strokes. But how do you know if you have high cholesterol? What are the symptoms? The answer is that the majority of people have no symptoms at all until they have a heart attack or a stroke! High cholesterol works in the background causing atherosclerosis, slowly furring up the arteries all over the body. The only way to know if you have it is to get a blood cholesterol check by your doctor.
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Article
What is heart failure and what can I do about it?
Swelling of the legs, breathlessness and tiredness are some of the common symptoms of a condition called heart failure. Heart failure is increasingly common, and is caused by common conditions like high blood pressure, coronary artery disease and diabetes. There are lots that can be done to treat it, but the first step is getting it diagnosed. If you have any of the above symptoms you should visit your doctor to get assessed.
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Article
Why can't I lose weight by dieting? AND how best to lose weight long term!
How many of you have tried a diet, lost some weight, then a few months later you are back to square one?! You are not alone. Studies show us that most people that try a diet have put that weight almost completely back on within 1-2 years. But why is that? Why is it so difficult to keep weight off long-term? What is the best way to lose weight and keep it off? In this educational video, I explain how your body tries to keep you at your current weight and why short terms diets don't work in the long term. I will also explain the techniques needed to sustain weight loss long-term and improve your overall wellness.
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Article
Do cardiologists perform surgery?
What is the difference between a cardiologist and a cardiac surgeon? Both specialties are involved in managing patients with heart problems, but they do very different things. A cardiologist diagnoses and treats conditions of the heart and blood vessels usually with medication and sometimes with minimally invasive techniques like angioplasty. Some conditions cannot be dealt with in this way and this is when a cardiac surgeon steps in. A cardiac surgeon often performs major surgery where the patient is given a general anesthetic and their chest is opened up to access the heart. Cardiac surgeons do operations like valve replacements and coronary artery bypass grafting.
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Article
What happens at a first visit to a cardiologist?
It can be scary when you have to visit a cardiologist for the first time. Worrying about what they will do and what they might find. Don't worry! It's really not that scary. In this video I talk you through what happens at a first visit and what tests you can expect. It will always start with a conversation about your symptoms and background history followed by an examination of the heart. After this you will most likely get an ECG and a number of other tests depending on your symptoms.
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Article
COVID 19 and the treatment of hypertension
There has been a lot published in the media about the relationship between COVID-19 and hypertension (high blood pressure). In this video Singapore cardiologist Dr Michael MacDonald goes over the available data on COVID and high blood pressure and offers practical advice on how to manage hypertension during this pandemic.
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Article
What is a heart screening?
Have you ever wondered what a heart screening is? Singapore Cardiologist Dr Michael MacDonald walks you through what commonly happens when you visit your doctor to get a heart checkup. He will tell you what tests are most important and why your doctor might order them.
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Improving Your HDL-Cholesterol
High density lipoproteins are important for the transport of cholesterol (collectively known as HDL-C) to the liver for breakdown and removal. In clinical practice, HDL cholesterol, rather than HDL particle structure or function, is used to risk stratify patients. Because these molecules transport cholesterol away from the arteries to the liver, HDL-C is commonly viewed as 'good' cholesterol and has been associated with reduced risk of coronary heart disease.
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How can snoring affect your heart?
Has your partner ever said you snore? Have they ever mentioned that you sometimes stop breathing when you sleep? If so, you may have sleep apnea, a potentially serious sleep disorder that can have significant consequences for the heart and arteries.
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5 Effective Ways to Lower Your Cholesterol Naturally with Your Diet
We know that having a high cholesterol is associated with heart attacks, strokes and death (cardiovascular disease) and that lowering cholesterol with medications called statins is an effective way to lower your risk of disease.
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5 Simple Ways To Combat The Effects Of Stress On The Heart
When your body perceives a threat, it increases the production of stress hormones like adrenaline that alter the way multiple systems in your body function i.e. digestion and immune systems. When the threat diminishes the hormone levels return to normal.
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How Does Stress Affect The Heart?
The stress response is a normal physiological response to help you deal with threats. When your body perceives a threat, it increases the production of cortisol and adrenaline. Cortisol raises your blood sugar and adrenaline elevates your heart rate and blood pressure. They are complex hormones that combine to alter the way multiple systems in your body function i.e. digestion and immune systems. When the threat diminishes the hormone levels return to normal.
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Article
Light Reflex Rheography (LRR)
What is a Light Reflex Rheography or LRR? Light reflex Rheography is a refined form of Photo-Plethysmography (PPG). This method is a non-invasive examination which measures the venous blood flow in the lower legs using infrared light, to evaluate the function of venous valves and the effectiveness of venous muscle pump. Venous blood volume changes...
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Article
Learn and understand what Coronary Angiogram is about - Dr Rohit Khurana
When do one need an angiogram and how is it being done.
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Why Cardiac Screening is Important? - Dr Rohit Khurana
Early detection of heart diseases through cardiac screening save lives
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The Importance of Pre Exercise Cardiac Screening Dr Rohit Khurana
Dr Rohit Khurana talks about the importance of pre exercise cardiac screening.
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Article
3 Myths of High Blood Pressure Causes and Symptoms
Hypertension or high blood pressure is common among Singaporeans. The Health Promotion Board reports that 1 out of 2 Singaporeans aged 60-69 have high blood pressure. While it is a common condition, high blood pressure rarely causes any symptoms - in many cases, you would not know that your blood pressure has already risen to a dangerous...
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Article
3 Ways To Achieve Your Ideal Heart Rate
We've always been told that engaging in regular exercises like walking, running, or swimming gives us a healthier heart. But do you know that over-exercising may also over-work your heart and increase your chances of having heart disease? A fast heart rate of over 100 beats per minute can make you lose your breath and...
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Article
4 Symptoms of a Heart Attack that Women may Overlook
While the classic symptoms of a heart attack, such as chest pain and discomfort in the left arm, are common for men, symptoms in women are less well-defined and may even be silent. Over the years, we have seen many female patients that had suffered from a minor heart attack without even knowing it. Some...
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Article
5 Simple Tests To Help You Achieve Optimal Heart Health
There is nothing more painful than losing a loved one to sudden death due to heart attack, cardiac arrest or stroke. These cardiovascular diseases all find their root cause in coronary artery disease, which you could develop when your heart artery is blocked with fatty plaques. Thankfully, seeing your cardiologist in Singapore for regular cardiac...
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Article
Dobutamine Stress Echocardiography (DSE)
What is Dobutamine Stress Echocardiography? Echocardiography uses ultrasound waves (high-frequency sound waves) to assess the motion of heart muscle and bood vessels. Dobutamine stress echocardiography (DSE) is a non-exercise stress test that allows the cardiologist to study the capacity and reserve of heart muscle function under stressful condition. Dobutamine, a cardiac medication, is infused through...
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Article
Exercise Stress Echocardiography (ESE)
What is Exercise Stress Echocardiography? Echocardiography uses ultrasound waves (high-frequency sound waves) to assess the motion of heart muscle and blood vessels. Exercise Stress echocardiography (ESE) is an exercise stress test that allows the cardiologist to study the capacity and reserve of heart muscle function under stressful condition. You need to exercise on Treadmill machine...
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Article
How Would You Know If Your Chest Pain Is Telling You That Your Heart Is In Trouble
The hot searing pain you are experiencing in your chest might just be a heart burn, but what if the pain in your chest is telling you that your heart is in trouble instead? Here are some common signs of heart-related chest pain and why heart surgery may be necessary to help alleviate it. Common...
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Article
Is Your Heart Bleeding? Learn About The Heart Surgery To Plug Leaks In Your Heart Valve
A healthy heart functions in such a way that it pumps blood sufficiently and enables blood to flow from the heart chambers into the other organs of the body. Unfortunately, leaks can sometimes develop in the heart valves, impairing the forward flow of blood. Leaky heart valves, such as mitral regurgitation, cause blood to flow...
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Article
Preventing The Widow Maker's Disease: 3 Treatments To Help Prevent Sudden Cardiac Death
It comes without warning; it kills within minutes. No wonder, Sudden Cardiac Death or SCD has been called the widow maker's disease. In Singapore, about 1000 women lose their husbands to SCD yearly. According to the National Heart Centre Singapore, about 90% of SCD occurs in males aged around 47 years old. Whereas for females...
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Article
3 Factors That Make You An Ideal Candidate For Open Heart Surgery
Heart attack is the second most common cause of death in Singapore, and the third most common reason for hospital admission. According to the Ministry of Health, 261 patients were admitted to the National Heart Centre for open heart surgery (coronary artery bypass graft) from 1 May 2014 to 30 April 2015. 67 patients were...
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3 Things To Expect After A Coronary Artery Bypass Graft (CABG) Surgery
For many people with a coronary artery disease, the Coronary Artery Bypass Surgery, a heart surgery that removes blocked artery and replaces it with a healthy artery, serves as a much-needed lifeline. Many patients experience improved quality of life after a CABG. The effectiveness of the surgery depends on a lot of factors, including post-surgery...
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Article
5 Things Your Cardiologist In Singapore Will Ask You To Do Before A Catheter Ablation
Catheter ablation is a procedure that uses radiofrequency heat (similar to microwave heat) to destroy abnormal heart tissue that causes irregular and rapid heartbeats known as cardiac arrhythmias. As your cardiologist would explain, cardiac arrhythmias can cause shortness of breath, weakness and fainting as a result of your heart's failure to effectively pump blood. While medications...
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Article
5 Truths You Shouldn't Hide From Your Cardiologist
While it's no secret that heart attack occurs without any warning, most people who have had a heart attack confess to one thing: They knew they were at risk, but they either denied or ignored it. Seeing your cardiologist in Singapore for regular heart checks is a good first step towards prevention as long ...
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8 Questions To Ask Your Cardiologist About Coronary Artery Bypass Graft (CABG) Surgery
Heart attack is the second most common cause of death in Singapore. Heart attack occurs when the coronary artery supplying blood to the heart becomes hardened or blocked, subsequently cutting the oxygen supply to the heart. The part of the heart muscle that is oxygen-starved begins to die, resulting in heart attack. As your cardiologist...
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Fixing A Broken Heart: How Your Cardiologist In Singapore Can Help You Manage Heart Failure
When your heart is not able to pump enough blood to supply much needed oxygen and nutrients to your body's organs and tissues, the condition is known as heart failure. In most people, heart failure is a chronic disease that has no cure. If you have been diagnosed with chronic heart failure, seeing your cardiologist will...
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Article
Getting Help From Your Cardiologist In Singapore On Permanent Pacemaker Implantation
The heart of a healthy adult beats from 60 to 100 times a minute at rest. As your cardiologist would explain, abnormal heart rhythms, also known as arrhythmia, may cause the heart to beat too fast, too slow or erratically. When this happens, the heart is not able to pump blood effectively, therefore, affecting its...
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Article
Healthy Hearts: Benefits Of Seeing Your Cardiologist In Singapore For Proactive Heart Screening
Many of you may not heed your doctor's advice to start having a healthy lifestyle until you are diagnosed with cardiovascular disease. As your cardiologist in Singapore would explain, managing risk factors (such as high blood pressure and high total cholesterol) is crucial to preventing cardiovascular diseases. Seeing your cardiologist in Singapore for proactive screening is...
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Article
Heart Attack: Getting Help From Your Cardiologist In Singapore To Prevent This Silent Killer
According to the Singapore Heart Foundation, 15 people die from cardiovascular disease (heart attack and stroke) every day. This accounts for nearly 1 out of 3 deaths in Singapore. As your cardiologist in Singapore will explain, heart attack is a silent killer and many first attacks are fatal or permanently disabling. Because of this, early prevention...
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Article
What is AF Ablation?
Dr Regianld Liew talks about what is AF Ablation, what does it treat and how it is done.
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What is Atrial Fibrillation?
Dr Reginald Liew talks about what is Atrial Fibrillation and what are some of the current treatment options available today.
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What To Expect When Your Heart Is Literally In Your Doctor's Hand: Understanding Angioplasty And Bypass Graft Heart Surgery
Your chest starts to tighten; you find it hard to breathe. You feel your heart racing fast, and suddenly you are nauseated and start to collapse. You could be having a mild stroke or a heart attack and need to be rushed to the ER. Heart attack results from coronary artery disease, a condition where...
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Article
Will I Survive? A Look Into The Survival Rates Of Coronary Artery Bypass Surgery In Singapore
Many people who suffer from congenital and coronary heart diseases owe their second life to heart surgery and other heart procedures. In Singapore, more than 500 heart surgeries were performed in 2011, according to the National University Heart Centre. This number is seen to rise as many patients who had been operated on in infancy...
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Article
3 Heart Surgery Procedures To Repair Clogged Arteries And How These Will Help You Live Longer
Stroke and heart attack are two dreaded consequences of coronary artery disease (CAD), which occurs when fatty plaques clog up your coronary arteries. Eating fatty and cholesterol-laden foods is seen as the main reason for fatty plaques to build up in your arteries. Because fatty plaques build up overtime, you may not experience symptoms until...
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Article
Pacemakers, what are they for?
Dr Reginald Liew explains what are pacemakers, how it helps in treatment of multiple heart conditions, how it is implanted and how long it would last.
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Palpitations - Causes, how to detect and how to treat them
Dr Reginald Liew talks about what are palpitations and what are the causes of it. He will also talk about different types of heart rhythm problems, how to detect them and the various treatment options available.
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Article
Heart Health: Get Screened By A Good Cardiologist In Singapore
Have you given your heart a check lately? According to the Ministry of Health, 15 people die from cardiovascular disease everyday in Singapore. This means that 1 out of 3 deaths in the country are caused by a heart disease or stroke. As with many other diseases, keeping your heart healthy is an important defence...
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Article
The Importance of Pre-Exercise Cardiac Screening
Regular exercise of moderate intensity is widely encouraged to reduce one's long term risk of heart disease. The incidence of sudden cardiac death of an athlete is a rare tragedy that is related to the increased risk associated with strenuous exercise in the presence of a quiescent cardiac abnormality. Pre-exercise cardiac screening for individuals participating...
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