Second degree AV block medical therapy
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mohammed Salih, M.D. Cafer Zorkun, M.D., Ph.D. [2]
Medical Therapy
Mobitz I
- Patients are usually asymptomatic and doesn't require a pacemaker.
- Correction of reversible causes of the block such as ischemia, medications, and vagotonic conditions should be addressed.
Mobitz II
- Correction of reversible causes of the block such as ischemia, medications, and vagotonic conditions should be considered.
- Treatment may also include medicines to control blood pressure and atrial fibrillation, as well as lifestyle and dietary changes to reduce risk factors associated with heart attack and stroke.
- Treatment in emergency situations are atropine and an external pacer.
Contraindicated medications
Second degree AV block(except in patients with a functioning artificial pacemaker) is considered an absolute contraindication to the use of the following medications:
- Adenosine
- Atenolol
- Betaxolol
- Bisoprolol
- Brimonidine tartrate and Timolol maleate
- Carteolol
- Diltiazem
- Disopyramide
- Dronedarone
- Flecainide
- Metoprolol
- Mexiletine
- Nadolol
- Nebivolol
- Penbutolol
- Pindolol
- Propranolol
- Sotalol
- Timolol
- Labetalol