International journal of obstetric anesthesia
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Int J Obstet Anesth · Jan 2005
Per-operative cerebral near-infrared spectroscopy (NIRS) predicts maternal hypotension during elective caesarean delivery in spinal anaesthesia.
Spinal anaesthesia-induced maternal hypotension is common during elective caesarean section. This study evaluated whether cerebral near-infrared spectroscopy predicts maternal hypotension, defined as a 25% reduction in systolic blood pressure or heart rate or presentation of clinical symptoms. ⋯ The results demonstrate a relationship between ScO(2) and impending hypotension during low-dose spinal anaesthesia for elective caesarean section. We suggest that immediate measures are taken to stabilise blood pressure if the near-infrared spectroscopy determined cerebral oxygenation decreases by more than 5%.