Work

Complete Heart Block Due to High Vagal Tone in Pregnancy

Year: 2025

Type: article

Abstract: 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.

Source: CJC Open

DOI: 10.1016/j.cjco.2025.06.001

Authors: Ella Maria Cockburn, Jessica Yao, Robert Anderson

Institutions: The Royal Melbourne Hospital, The University of Melbourne

Language: English

Topic: Cardiac electrophysiology and arrhythmias

Subfield: Cardiology and Cardiovascular Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $2,590