Syncope during pregnancy in a patient with permanent cardiac pacemaker, due to increased pacing threshold.
International Journal of Cardiovascular Practice,
Vol. 1 No. 2 (2016),
2 August 2016
A 22-year-old pregnant woman referred with syncope due to pacemaker malfunction. During the second trimester of pregnancy, the right ventricular (RV) lead pacing threshold increased and led to early generator depletion. We believe that this might happen due to lead micro-dislodgement or less probably effect of hormonal changes during pregnancy on electrode-myocardium interface.
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