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Updated: Aug 12, 2026

Testing the Efficacy of Pharmacological Agents in a Pericardial Target Delivery Model in the Swine
Published on: July 7, 2016
[Clinical observation of cardiac pacemaker in pregnant women]
Objective:
To study the clinical results in pregnant women with bradycardia implanted with cardiac pacemakers.
Method:
Five pregnant women with bradycardia were retrospectively studied in our hospital from 1980 to 1996.
Results:
Four of the patients had A-V block, and the other one sinus bradycardia. Classification of cardiac function, showed 1 case of class IV, 3 cases of class III, and 1 case of class II before implantation of cardiac pacemaker. One case had the pacemaker implanted before pregnancy and 4 cases during pregnancy. Cardiac function improved significantly after implantation and pregnancies went uneventfully. Three women had term living birth by cesarean section, and 2 ended by therapeutic abortions safely.
Conclusion:
Bradycardia is a rare and serious complication in pregnancy, especially due to A-V block of III degree. Cardiac pacemaker should be implanted before pregnancy or at early stage of pregnancy in order to maintain adequate heart function. These patients should receive cesarean section.
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