Loading...
Categories
Lets Feel The Scare

TMT Test Means Treadmill Test … It Gauges Heart Stress

TMT Test Means Treadmill Test … It Gauges Heart Stress

 

TMT Test means a Treadmill Test. It is a medical acronym for a heart test done using a treadmill.

Have you ever wondered how far your heart can go if it is put to higher and higher levels of stress? More and more youngsters are falling prey to heart attacks because they think external body fitness and heart fitness are the same things. They are not.

Moreover, whether young or old, if you are a patient with other ailments like hypertension, obesity, diabetes, or cholesterol – or you have a family history of heart disease – the chances of future heart attacks get multiplicative.

Doctors normally ask patients to go through the Treadmill (TMT) Test, if there is either a suspicion of heart ailment or even regularly as part of the Annual Health Check-Up Plan.

If you have doubts about the process and what it will take, we’ve put together the answers for you.

 

1. What is a TMT (Treadmill Test)? Why is a TMT test required?

A treadmill test (TMT) is a form of cardiac stress test. Your doctor will ask you to walk (or later, even run) on a treadmill, and the difficulty level will be gradually increased. Your heart signals will be monitored as you do this activity.

The idea is to help your doctor determine how far your heart can go before it begins to suffer an abnormal rhythm – or the blood flow to your heart drops.

In short, it helps your doctor know how much stress your heart can take.

 

2. Are even children prescribed a TMT test?

Children who are in high-heart-risk families, or those with congenital heart defects, may be put under TMT stress tests … but doctors will be very careful to set test limits to match the age group and heart conditions of such children.

More and more hospitals are indeed offering TMT tests to children. The University of IOWA Stead Family Children’s Hospital in the US even has a very reassuring YouTube video to show kids and their parents how a TMT test is done.

Adults too could benefit from watching this short, simple and clear video.

 

 

3. Is TMT and ECG the same? What about TMT and ECHO tests?

A Treadmill Test (TMT) is generally done to find the stress on the heart. On the treadmill machine, the patient is asked to walk or run, and the readings are taken.

An ECG (Electro Cardio Graph) test is quite different. Electrocardiography is the recording of the heart’s electrical activity over time via skin electrodes.

While a TMT test gauges the level of stress your heart can take, the ECG studies your overall heart rhythm to spot weaknesses in different parts of the heart muscle, which reflect abnormal rhythms of the heart.

Both TMT and ECG however cannot measure the pumping ability of the heart; for this, doctors have to depend on ultrasound-based echocardiography (also known as the ECHO tests).

 

4. What is a normal TMT test? What is abnormal?

For adults, the maximum predicted heart rate is generally expected to be 220 minus your age. So, for example, if you’re 40 years old, the maximum predicted heart rate is 220 – 40 = 180.

For treadmill testing, doctors will try to check if your heart can sustain at least 85 percent of the predicted maximum heart rate.

 

 

If you are unable to do that much activity – or you feel strain, chest pain, breathlessness, cramps, or other clear discomfort – your test will be stopped for abnormality. The maximum level up to which your heart can go will be noted.

 

5. How is TMT test done? What are the stages of a stress test?

The “Bruce Protocol” is a standard used in TMT testing and is comprised of multiple exercise stages of three minutes each.

You are asked to begin walking on a treadmill at a slow pace (under 2 mph). Every few minutes, the speed and steepness of the treadmill is then increased, making you work harder. The goal is to see at which point you’re too tired or out of breath.

  • Stage 1 is performed at about 1.7 mph and a 10% gradient.
  • Stage 2 is performed at about 2.5 mph and a 12% gradient.
  • Stage 3 is performed at about 3.4 mph and a 14% gradient.

 

6. How many minutes do you have to walk or run for TMT? Is a stress test hard?

Your doctor may look to see if your heart can do at least 85% of its maximum heart rate for about 9 minutes or so.

But the doctor may also further see if you can stay on the treadmill as long as possible to evaluate maximum effort.

Those over age 70 must be able to exercise for much less time (as decided by the doctor), but must still attain 85% of the predicted maximum heart rate.

Doctors will never make it so hard that a TMT test impairs your heart. That’s why you must always insist on a Specialist/Cardiologist being present during your test – and not just a nurse or technician.

 

7. Can you drink water before a stress test? Can you drive home after a stress test?

The general rule most doctors follow is this: Nothing to eat or drink 6 hours before the test. You may drink water in any amount. You must avoid all products that contain caffeine for at least 24 hours before the test.

Your doctor may usually also forbid you from driving yourself home after a stress test. So go prepared.

 

8. Can a TMT test detect artery blockage?

Although the typical TMT tests are not of much use in identifying the smaller plaques in our body, stress tests can be reasonably good at detecting severe blocks.

Cardiologist Benico Barzilai, M.D. at the Cleveland Clinic, says, “Stress tests can detect when arteries have 70% or more blockage. This severe narrowing is what causes severe chest pain called angina.

But normal results from a stress test do not rule out the possibility of a future heart attack. This is because plaque can still rupture, form clots and block an artery.”

 

9. Is a positive test serious? What about a negative test?

Positive TMT tests usually mean that a patient is showing changes of a lack of adequate blood supply to the heart (also called angina) after some workload. In medical terms, doctors may refer to the patient’s heart as having “ischemic heart disease”.

But having either positive or negative results on a TMT test needn’t always be perfect. Sometimes, doctors may get false positives or false negatives that need to be evaluated against other tests on the heart.

 

 

As always, the doctor is the best judge on how to analyze results as positive or negative, given all the other evidence of the condition of a patient’s heart.

 

10. How long is a TMT test valid? And what is the usual cost?

A TMT Test is usually valid for up to 4 months from the date it was taken.

At the time of writing this article, the price of a TMT test in India is claimed to be around INR 1200 (plus or minus price variations at different hospitals).

Results will be usually available within 4-6 hours to patients – or even earlier to the doctor.

 

In summary, the wrong thing to do would be to go to a TMT test in a state of fear, not knowing what to expect. Be as relaxed as you can be, enjoy the treadmill exercise, and learn more about yourself and your heart with a good doctor beside you. Treat your heart responsibly.

Categories
Lets Feel The Scare

Anxiety, Heart, Panic: A Fearful Circle (But Manageable Too)

Anxiety, Heart, Panic: A Fearful Circle

 

Anxiety, heart, and panic … have you noticed how people always refer to these three conditions as if they were all the same thing?

You must have heard sufferers say, “I’m having an anxiety episode. I’m panicking. My heart’s racing towards an attack!”j

That’s natural because these three conditions are indeed interconnected. But there are also fine differences between them.

It helps to know how to tell one type of attack from another … without confusing the signals.

It also helps to know that the whole fear-driven vicious circle is possible to calm down and manage.

 

1. What is an anxiety attack and how is it caused?

Anxiety is the most natural response of the body to danger. Our bodies are naturally made to show us signals when we are presented with imminent threats.

For example, our hearts beat faster, our breathing gets heavier, our muscles tighten, our nerves are on sharp alert, and our minds are overactive. This, according to the expert psychiatrists is called the “fight or flight response”. In the face of lurking alarm, our bodies get ready to either stay and fight the hazard – or flee from it.

In olden times, when people faced life in the wild amidst real danger, these signals of anxiety alerted them to save themselves from wild animals or other natural perils. But the modern world has no such dangers, right? So why do we then have anxiety symptoms?

That’s because many of us see ordinary life challenges as “perceived threats”. Our bodies then create the same “fight or flight response” signals even for sillier things like work deadline fears, or life changes like relocations. Sometimes, even good life events like an impending wedding or a promotion can create anxieties.

 

2. What kinds of people get more anxiety in their lives?

Two kinds of people are more prone to anxiety in their lives.

One group, as we saw earlier, is those who see every small challenge or change in life as “dangerous” or “highly negative”. Life, as we know, never goes 100% smoothly at any time. When you take every setback, minor and major, as a threat your anxiety can go sky-high.

The second group of anxiety sufferers is those who have OCD (Obsessive Compulsive Disorder). These are people who are extreme perfectionists, always wanting life to follow a certain pattern. Even a slight change of order can create high levels of anxiety in them to set right the “disorderliness”.

 

3. How is an anxiety attack different from a panic attack?

 

 

A panic attack is a more aggressive kind of anxiety attack. In an ordinary anxiety attack (called Generalized Anxiety Disorder), we would feel tight and stressed, with fast heartbeats and raw nerves. In a panic attack (also called Panic Disorder), things get so stressful that we find it difficult to breathe.

We suffer what doctors call “hyperventilation” – or very short, shallow, and fast breathing that sometimes leads us to faint. Our stomachs begin to churn, our mouths go dry, and we feel as if we are suffocating from lack of oxygen. It’s as if something is tightening our chests unbearably.

Hyperventilation is not a shortness of oxygen, as we think … but because our breathing is shallow and rapid, there’s an over-intake of oxygen and a lack of enough balancing carbon dioxide.

An age-old trick that doctors prescribe is to breathe into a paper bag, held tight to our faces, for a short while. We thus briefly breathe in the carbon dioxide we are breathing out – and we rebalance the carbon dioxide levels in our lungs.

 

4. How do anxiety or panic attacks affect the heart?

The relationship between anxiety, panic, and heart disease is a vicious cycle, where anxiety and panic affect the heart and vice versa – as demonstrated by this graphic from the Centers for Disease Control and Prevention (CDC).

 

CDC diagram of interrelationship

Click on the image to expand.

Image courtesy: Centers For Disease Control and Prevention

According to CDC, people with depression, anxiety, or stress, over a long period, may experience certain physiologic effects on the body, such as increased heart rate and blood pressure, reduced blood flow to the heart, and heightened levels of cortisol. Over time, this can lead to calcium buildup in the arteries, metabolic disease, and heart disease.

On the other hand, after heart disease sets in, those with anxiety and depression may also increase their smoking, inactive lifestyles, or fail to take prescribed medications, because they may have fewer healthy coping strategies for stressful situations.

One more thing about the heart … if you are a patient with other ailments like hypertension, obesity, diabetes, or cholesterol – or you have a family history of heart disease – the chances of future heart attacks get multiplicative.

 

5. When is an anxiety or panic attack serious enough to call the doctor?

It’s often wrong to try and evaluate if you are having an anxiety or panic attack, or a heart attack, just by trying to gauge your heart rate. There is no standard anxiety heart rate, panic heart rate, or heart attack heart rate. Your doctor is the best judge because there are so many other variables to consider besides heart rate.

The best thing to do is to monitor the situation. An anxiety attack or panic attack may go away on its own after a while. But if the problem persists for a long duration or recurs too frequently, you may be better off visiting a doctor to see if your heart is involved or impacted.

The signs to take seriously are when you also have shortness of breath, dizziness, chest pain, or a fainting episode, along with excessive sweating. If you have a doubt, it’s always better to get a medical clearance that all is well with your heart. That’s one worry less, and that always helps!

 

6. How do specialists diagnose and treat anxiety?

If you feel you have an anxiety disorder or a panic disorder, get your doctor’s referral to a good psychotherapist. Your therapist may recommend an approach that combines some anxiety-relieving medications and some behavioral counseling.

You may be encouraged to try Cognitive Behavioral Therapy, where you are taught to identify automatic negative thoughts and replace them with positive ones. One other method is called Exposure Therapy where you are made to face the anxiety-causing problems often – to stop fearing them anymore.

Other treatments could include relaxation exercises, biofeedback, and meditation.

 

7. How can you calm yourself and prevent anxiety from impacting your heart?

If you’re cleared medically and feel capable of handling your anxiety yourself, there are some excellent self-care ideas you can try to calm your mind and body.

  • Get some regular exercise. When you rid your body of excess nervous tension through active physical movement, your mind will stop racing out of control.

 

 

  • Avoid interactions with those who are argumentative. Don’t let anyone wear you down with too much intellectual squabble.
  • Spend lots of time with Nature. The scenes, scents, and sounds of life around will take your mind away from itself, where it tends to wallow in its miseries.
  • Focus on sensory pleasures. Savor the taste of food. Inhale the aroma of cooking. Hear the sounds of the street outside. Pet your puppy’s warm fur. Fill your eyes with the beauty of the sunset.
  • Learn to take life easy. As wise people say, “Don’t take everything to heart.”
  • Don’t always live in your mind overwhelmed by thoughts. Live amongst things outside of yourself.

Free yourself from the old negative anxious or panicky thoughts and greet each new day with a fresh mindset, eager to live. Show your heart some love.

About