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Heart Block- Symptom, Causes, Treatment of Heart Block


Heart Block is the agitation of heart rhythm occuring from blockage of the communicate of electrical impulses by the specialised muscle which forms the leading tissue of the heart. In healthy people the heart rate is insured by the sinoatrial node (pace maker) placed in the right atrium ( high chamber of the heart), that discharges usual impulses which are transmited throughout the upper chambers and to the ventrides ( reduced chambers of the heart) to induce their contraction.

Usually the ventrcles contract about 0.2 seconds ( relying on the heart rate) after the atria. In heart block this separation is elevated beyond 0.22 seconds. This very slight detain may lessen the heart's capacity to pump blood efficiently.

There are various degrees of heart block. In first degree heart block, the separation between atrial and ventricular contraction is extend. Though this does not reason any difficulty and is considered to be common in well-trained athletes.

In second degree heart block, not all atrial contractions are ensued by ventricular contractions, that produce in missed beats. In conclude heart block, no impetus are conducted from the atria to the ventrides. Although the atria continue to shrink at a rate dominated by the pacemaker consorting to the patient's activities, the ventrides contract severally at a rate of about 40 beats per minute. In intense second degree and finished heart block, the heart rate cannot extend in response to exercise and other circum stances (such as fever) which extend demands on the circulation. This can have grievous consequences for the patient

Causes of Heart Block

Heart block may be induced by injury to the heart's conducting tissue leading from coro naryartery disease (narrowing of the arteries supplying the heart musde), heart attack, myocarditis (soreness of the heart musde), rheumatic fever, or overdosage of several drugs ( particularly digoxin). Congenital heart block is ascribable to an inborn inadequacy of the heart's conducting tissue.

Symptoms of Heart Block

Fainting, dizziness, weakness, fatigue and breathlessness on exertion are frequent in finished heart block. Acute heart failure is a contingency.

Treament of Heart Block

If the reason of heart block cannot be rectified, an artificial pacemaker is fitted.

 

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