Predictive effect of the difference of brachial artery peak velocity during the valsalva maneuver in different positions on supine hypotension syndrome of parturient after spinal anesthesia
Abstract:BACKGROUND:The effectiveness of predicting the incidence of supine hypotension syndrome (SHS) after spinal anesthesia was measured by ultrasonic measurement of the variation of brachial artery peak velocity in different positions of parturient. METHODS: Parturient scheduled for elective cesarean section. ASAI or Ⅱ, were divided into SHS group and no SHS group (SBP in the upper extremity decreased by>30 mmHg or decreased to<80 mmHg) after spinal anesthesia. To record HR, SBP, DBP, MAP of supine position a… Show more
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