ECG of complete heart block


If there are P waves and QRS complexes but the P wave does not come before the QRS complex in a normal way, this means there is some kind of block between the signal in the atria and the impulse through the ventricles. It is called heart block. It often suggests some kind of damage to the normal conducting system, perhaps because of a heart attack in the past. Heart block can be first degree, second degree or third degree.

ECG of complete heart block

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