<p> </p> <p class="MsoNormal" style="line-height:200%"><span style="font-size:12.0pt;
line-height:200%;font-family:"Times New Roman","serif";mso-fareast-font-family:
"Times New Roman";color:black">Maternal hypotension is common complication during obstetric spinal anesthesia. We investigated the role of autonomic function test for predicting maternal hypotension during spinal anesthesia for cesarean section. Thirty two parturients undergoing cesarean section under spinal anesthesia were enrolled. Sympathetic function test included diastolic blood pressure changes response to hand grip and systolic blood pressure changes response to postural change(supine to standing position). Parasympathetic function test included heart rate responses to deep breathing and heart rate responses to postural change(supine to standing position). Hypotension occurred in 22/32 parturients. There was not correlation in sympathetic dysfunction and hypotension incidence. But the incidence of hypotension in parasympathetic dysfunction positive group and negative group was 12/12(100%) and 10/20(50%) respectively, and there was significant difference (p=0.004). This study suggested that the autonomic function test may be useful methods to predict maternal hypotension during spinal anesthesia for cesarean section.</span><span style="font-size:12.0pt;line-height:200%;
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