Perioperative hypotension is a common complication of spinal anesthesia during cesarean sections. The aim of this study was to evaluate the effectiveness of echoguided correction of hypovolemia through crystalloid preloading on the incidence of arterial hypotension during scheduled cesarean sections under spinal anesthesia. It was a double-blind, randomized controlled trial study conducted on hypovolemic parturients, scheduled for cesarean section. investigators compared ultrasound guided correction of hypovolemia to a standard care protocol without preloading. Hypovolemia was defined as a ≥12% increase in the variation of the velocity-time integral of subaortic blood flow during a passive leg raising test. Preloading was guided by the variation of the velocity-time integral of subaortic blood flow during volume expansion tests.
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incidence of post-spinal anesthesia arterial hypotension during surgery
Timeframe: 60 minutes