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| Defibrillator |
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| Fibrillation is abnormal and asynchronous contraction of the heart muscles. This reduces the proper effectiveness of heart pumping. Atrial fibrillation is irregular and faster contract ions of atria. It may occur in myocardial infarction and in rheumatic heart disease. Ventricular fibrillation is an abnormality, which generally indicates. Cardiac arrest. It is characterised by asynchronous and haphazard ventricular contractions, either rapid or slow. |
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| In order to stop ventricular fabrillation, a very strong electrical current can be applied for a short period of time. This process is called defibrillation and the instrument used to deliver the current is called defibrillator. Through two metal paddles pressed to the chest, a strong electrical current is delivered and it causes the cardiac muscle to become depolarised. All impulses stop for a few seconds. The SA mode may again start functioning to restore normal heart rhythm. |
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| Battery operated defibrillator implanted in the abdomen are also available for patients. |
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