Cardiac Arrhythmias Health Feed

What Happens When the Electrical Activity of Your Heart Changes?

The heart's electrical conduction system plays a very important role in cardiovascular functioning. Also known as the atrioventricular (AV) conduction system, it regulates and controls the timing of the heartbeat.

How does the heart's electrical conduction system work?

There is a collection of electrical cells in the upper right atrium of the heart known as the sinoatrial (SA) node which acts as a natural...more

Your thyroid is a small, butterfly-shaped gland situated at the base of the front of your neck, just below your Adam's apple. Hormones produced by the thyroid gland do everything from maintaining your heart rate to regulating your body temperature to controlling your body weight.

Millions of people worldwide suffer from thyroid dysfunction and several don't know about it. This is primarily because people don't tend to link the common symptoms first with a thyroid disease. Some people s...more

One of the most common problems to affect men and women of all ages is high blood pressure. If your blood pressure consistently shows a reading that is higher than 140 over 90 you may be suffering from high blood pressure. High blood pressure on its own is not fatal, but it can lead to a number of problems including strokes and higher vulnerability to heart attacks.

An unhealthy lifestyle is one of the biggest causes for high blood pressure. Thus making conscious lifestyle changes such...more

There are different types of heart problems like coronary artery disease, congenital heart failure and cardiomyopathy, but their warning signs are the same i.e. shortness of breath. This is the reason why shortness of breath should never be taken lightly and should always be investigated for heart diseases.

Why does shortness of breath happen?
You may not be able to get in enough air while experiencing shortness of breath. Known medically as dyspnea, shortness of breath is often des...more

Arrhythmia is a disorder which is characterized by improper and irregular heartbeats; be it too slow or too fast. This problem occurs when the electrical impulses that are used to regulate your heartbeat don t work in the correct manner. Your heart may beat irregularly, too slow or too fast.

Symptoms
Although this disorder does not yield many symptoms, a few noticeable symptoms of arrhythmia are slow heartbeat, or a racing heartbeat, chest pain, breathing difficulties and dizziness....more

A sudden cardiac arrest is not same as a normal heart attack. While a heart attack refers to the blocking of blood flow to the heart, a sudden cardiac arrest refers to when the heart stops beating unexpectedly. Sudden cardiac arrests occur without warning and often this condition is triggered by electrical malfunctioning in the heart that causes arrhythmia. When the heart stops beating, blood cannot be pumped to the brain and other organs and the person loses consciousness. If a patient does not...more

We all know about magnesium as a mineral, but what most individuals do not know is the fact that it is a very important mineral for our bodily health. Magnesium is involved with more or less 300 complex metabolic processes in our body, thus earning the title of master mineral .

Here is a list of reasons why magnesium holds an important place in our body.

It is responsible for transportation of calcium across cell membranes. As such, it helps calcium get into the bone matter. ...more

Iodine deficiency is a very common problem worldwide and is a major cause of thyroid disorders. The entire mechanism of how deficiency of iodine causes hypothyroidism is a complex explanation. So we will stick to layman terms and keep it simple. Deficiency of iodine causes a range of diseases which, altogether are termed as iodine deficiency diseases. When an individual does not receive enough iodine, the thyroid gland increases in size because the thyroid is unable to make enough hormones that ...more

Dear Lybrateuser,
-Your friend could be having sinus bradycardia, a condition in which the resting heart rate is 60 or less than that
-this disorder is due to problem with the electrical system of the heart, if the heart beats very slowly then it can not pump enough blood to meet the body's needs & sometimes it may become life threatening
-his hypertension & depression also have to be treated as they are contributors in the condition.

1st degree heart blocks only delay the passage of impulse from atria to ventricles and as such there is no loss of beats so you should not read too much in this. As far as palpitations are to be considered, this may be due to your anxiety and over consciousness. Try to keep yourself busy in your routine and diverted from this. In case your PR interval gets prolonged in any subsequent examination then reassessment of cardiac function may be done.