Fetal extrasystoles during pregnancy and labor appear benign, whereas fetal atrioventricular block can be associated with congenital cardiac failure.
Answers are grounded in this paper and cite their sources.
May support conservative monitoring of fetal extrasystoles; leaves open need for prospective studies on atrioventricular block evaluation.
The significance of fetal arrhythmia presenting during pregnancy and labour has been examined in 68 patients. The different types of rhythm disorders diagnosed included 61 extrasystoles, 6 atrioventricular blocks and 1 auricular fibrillation. Extrasystoles were not associated with acidosis or organic cardiac disease. Atrioventricular block, though not associated with fetal hypoxia, was occasionally associated with congenital cardiac failure.
No takes yet. Share an insight, caveat, or question.
Komáromy et al. (1977) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: