Tetanic uterine contraction may be a cause of persistent fetal bradycardia after fetal blood sampling by ultrasound-guided cordocentesis.

Abstract

Persistent fetal bradycardia necessiating emergency cesarean section is uncommon but a serious complication of ultrasound-guided cordocentesis. The cause of this complication, however, is not completely known. Reported here is a case of tetanic uterine contraction after fetal blood sampling via cordocentesis.