Key result
Tightening of a true knot of the umbilical cord caused persistent fetal supraventricular tachycardia of 230 bpm with second-degree A-V block, successfully managed by emergency cesarean section.
Case Report (n=1)
This case report highlights the rare association of persistent fetal supraventricular tachycardia and second-degree A-V block with a true knot of the umbilical cord, successfully managed by emergency cesarean section.
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True cord knot warrants consideration in unexplained fetal SVT with AV block; leaves open prospective validation of this association.
The association of an abnormal fetal heart rate tracing with a true knot of umbilical cord has rarely been reported. Presented is the first case report of persistent fetal supraventricular tachycardia of 230 bpm with a second degree A‐V block due to tightening of a true knot of cord. The infant was delivered successfully by emergency cesarean section without any heart decompensation. The possible pathophysiology of the monitoring findings is discussed, with a review of the literature.
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Chen et al. (1987) conducted a case report in Fetal supraventricular tachycardia (n=1). True knot of umbilical cord was evaluated on Heart decompensation and delivery outcome. Tightening of a true knot of the umbilical cord caused persistent fetal supraventricular tachycardia of 230 bpm with second-degree A-V block, successfully managed by emergency cesarean section.
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