Wednesday, May 9, 2012

Treatment of heart block

First degree (prolonged PR) :
No treatment


Mobitz I (prolonged PR, longer PR, even longer PR then dropped beat, cycle repeats. could be 2:1,3:1, etc.):
Treat underlying cause


Mobitz II (Just dropped beats. Constant PR intervals,no prolongation of PR with subsequent beats as in in type I):
Pacemaker


3rd degree (No relationship between P and QRS waves and the P rate is faster than QRS rate):
Pacemaker

Atropine is used in first degree and Mobitz I if the bradycardia is severe or symptomatic.
IV Atropine is first line in any severe symptomatic bradycardia.

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