![]() This triggered the widely accepted dogma that increasing “severity” of ventricular ectopic activity was directly related to the risk of malignant ventricular arrhythmias and considerable effort had been spent in developing and employing antiarrhythmic drugs to suppress ectopics in the 1960s and '70s. ![]() Lown and colleagues 2 proposed a classification and grading of ventricular ectopics based on their frequency and complexity. This was shown to be so in more recent times where patients who have had a myocardial infarct were more prone to sudden death if they had frequent ventricular ectopics. ![]() 1 He noted that these irregularities did not interfere with normal lifespan when they were occasional but an ominous prognosis was implied if they were frequent. The first recorded description of intermittent perturbations interrupting the regular pulse, that could be consistent with VEBs, was from the early Chinese physician Pien Ts'Io, around 600 BC, who was the master in pulse palpation and diagnosis. If the heart continues to beat very fast for a long period of time, the heart function can weaken and it will then lead to the development of heart failure.VENTRICULAR ECTOPIC BEATS: PAST, PREVALENCE AND PROGNOSIS These clots can then migrate up to the brain and cause strokes.Ītrial fibrillation also causes the heart to beat very fast. This cause the blood in the upper chamber of the heart to stagnate and form tiny clots. As such, the chambers are not really contracting but merely quivering. ![]() What are the complications of atrial fibrillation?Ītrial fibrillation results from the chaotic electrical beating of the upper chambers of the heart. Overactive thyroid and exposure to stimulants such as alcohol.The most common cause is old age where there is degeneration of the body's pacemaker and the heartbeat becomes abnormal.Ībnormalities and damage to the heart can also cause atrial fibrillation. What are the causes of atrial fibrillation? However, in many cases, it does not cause any symptoms and is only picked up during a routine examination of the pulse or the electrocardiogram. The most common symptom of atrial fibrillation is that of a fast and irregular heartbeat. What are the symptoms of atrial fibrillation? The heart rate can vary between 100 – 200 beats per minute. The irregular beating can come and go and the duration of the abnormal heart beat can be from seconds to hours to days. It is due to the chaotic and irregular beating of the 2 upper chambers of the heart. What is atrial fibrillation?Ītrial fibrillation is an irregular and often rapid heart beat. The major clue is that the patient will complain of an irregular heart beat. You may experience a very fast heart rate (tachycardia), an unusually slow heart rate (bradycardia), a normal heart rate that varies from the usual heart rhythm of a combination of the three.Ītrial fibrillation is a condition that can cause palpitations as it can cause the heart to beat very fast and irregularly. Sometimes heart palpitations can indicate a serious problem, such as an overactive thyroid gland (hyperthyroidism) or an abnormal heart rhythm (arrhythmia).Īrrhythmias may manifest in several different ways. Hormone changes associated with menstruation, pregnancy or menopause.Certain medical problems such as thyroid overactivity or thyrotoxicosis.Traditional medicine products, which may have stimulants.Stimulants such as coffee, tea or exercise.When you are experiencing heart palpitations, it can feel like your heart is: What are the symptoms of heart palpitations? Some patients even describe their heartbeats as 'fluttering' or 'popping out of the chest'. There might even be extra heartbeats that occur just before a regular beat, called ectopic beats. We may feel that the heart is beating faster, beating harder, skipping beats or beating irregularly. Palpitation is a general description of an increased awareness of our own heartbeat. Dr Kenneth Ng, cardiologist at Mount Elizabeth Hospital, explains the possible causes of heart palpitations and what atrial fibrillation is.
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