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Forum Name: Cardiology Symptoms

Question: Mobitz Type 1 and Pregnancy

 daisy1 - Tue Oct 27, 2009 6:41 pm

I am a 30 year old woman recently diagnosed with Mobitz Type 1 (Wenckebach) heart block. My cardiologist has offered to pace me for this condition, and I am trying to find out what to do: I have done a lot of reading, and know that the condition is generally considered to be benign. One of my main worries however is that my husband and I would like to start a family, and I don't know if this condition might get worse during pregnancy. I cannot find any published papers on this, only on women with heart block diagnosed during pregnancy, or women with pacemakers.

Has anyone supervised pregnancy in women with this condition (unpaced)? Is it likely to get worse?
 John Kenyon, CNA - Mon Nov 02, 2009 10:20 pm

User avatar Hello -- Mobitz type 1 (Wenchebach) is a benign condition that rarely requires any medical intervention. Pregnancy is one situation where it could, possibly, cause some problems, at least during delivery, as the enormous straining, which constitutes what's known as a valsalva maneuver, can slow the heart rate momentarily, so with even a relatively minor block like Mobitz 1, it's possible to slow the rate to the point where it could be problematic. During all other times, unless you've been markedly symptomatic, I don't see why your cardiologist would even bother to offer pacing. He of course knows your situation better than I, and if there's been any significant symptoms this may be a worthwhile backup scheme.

Hope this helps. Good luck to you,


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