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. 2016:23:74-6.
doi: 10.1016/j.ijscr.2016.04.016. Epub 2016 Apr 12.

Circulatory collapse following epidural bolus for Caesarean section a profound vasovagal reaction? A case report

Eva Oddby  1 , Anette Hein  2 , Jan G Jakobsson  3
Affiliations

Circulatory collapse following epidural bolus for Caesarean section a profound vasovagal reaction? A case report

Eva Oddby et al. Int J Surg Case Rep. 2016.

Abstract

Introduction: Reduced blood pressure is commonly seen associated to spinal anaesthesia for Caesarean section and efforts to reduce its occurrence and its magnitude is common practice. Cardiovascular collapse requiring cardio-pulmonary resuscitation after putting the spinal/epidural block for Caesarean section is however a rare but most dramatic event.

Presentation of case: We describe a case with sudden short loss of circulation, circulatory collapse, short after start of emergency Caesarean section in top up epidural anaesthesia (3+12ml ropivaciane 7.5mg/ml), requiring CPR. The neonate was delivered during CPR with Apgar 1, 10, 10 at 1, 5 and 10min. Circulation was restored following 60-90s of CPR and administration of 0.5mg adrenaline. No cardioversion was administered sinus rhythm was regained spontaneously. The mother and child had a further uncomplicated course. No signs of cardiac damage/anomaly, emboli, septicaemia, pereclampisa or local anaesthetic toxicity was found. The patient had prior to the decision about Caesarean section had fever and was subsequently relatively dehydrated.

Discussion: The patient had a fast return of sinus rhythm following birth of the child, without cardioversion. None of common causes for cardiac arrest was found and the patient an uncomplicated post Caesarean section course. The combination of epidural induced sympathetic block and reduced preload possibly triggered a Bezold-Jarisch reflex with a profound vasovagal reaction.

Concluiosn: A structured plan for the handling of cardiovascular crisis must be available wherever Caesarean section are performed. Adequate volume loading, left tilt and vigilant control of circulation following regional block performance is of outmost importance.

Keywords: Caesarean section; Cardiovascular collapse; Spinal anaesthesia.

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