Key result
Vagally mediated complete heart block in pregnancy permits conservative management without requiring pacing.
Why the study?
Atrioventricular block is rare in pregnancy, and the pathogenesis of acquired complete heart block in pregnancy is not fully understood.
Case Report (n=1)
Vagally mediated complete heart block in pregnancy can be managed conservatively without the need for a pacemaker.
May avoid pacing in vagally mediated CHB in pregnancy; leaves open mechanisms and generalizability of acquired AV block.
Atrioventricular (AV) block is rare in pregnancy.1 Most cases of complete heart block (CHB) that occur during pregnancy are due to congenital CHB that presents in the peripartum period. The pathogenesis of acquired CHB in pregnancy is not fully understood. Various mechanisms have been proposed, including atrial stretch and the effect of estrogen on estrogen receptors.2 We report a case of vagally mediated CHB. This condition causes variable intranodal AV block, which does not necessitate pacing and can be managed conservatively.
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Cockburn et al. (2025) conducted a case report in Complete heart block in pregnancy (n=1). High vagal tone was evaluated on Clinical management and need for pacing. Vagally mediated complete heart block in pregnancy causes variable intranodal AV block that does not necessitate pacing and can be managed conservatively.
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