Comparison of Pelvic and Lumbar Wedges in Prevention of Hypotension in Patients Undergoing Caesarean Section Under Subarachnoid Block
Journal Title: Journal of Medical Science And clinical Research - Year 2015, Vol 3, Issue 4
Abstract
A major cause of maternal hypotension during caesarean section is aorto caval compression.A randomised controlled trial was done to compare the effectiveness of tilt using wedges in the pelvic and lumbar regions for preventing hypotension following spinal anaesthesia for caesarean section. 60 parturients undergoing caesarean section were randomly assigned to 2 different wedged positions. After completion of the subarachnoid injecton, patient was placed with either a wedge under the right lumbar region [group 1, lumbar wedge], or under the right pelvis[group 2,pelvic wedge]. Systolic,diastolic and mean blood pressures and heart rate were recorded every 2 minutes after the subarachnoid block for the first 20 mts,thereafter15 mts till the end of surgery. Fall of Systolic blood pressure < 90 mm hg was treated with inj ephedrine 6 mg i.v. The obtained values were tested statistically using the students t test and chi square test. The incidence of hypotension was significantly higher in the pelvic group [25/30] than the lumbar group[6/30].Heart rate did not change significantly in either group.A lumbar wedge is more effective than a pelvic wedge in preventing hypotension following spinal anaesthesia for caesarean section.
Authors and Affiliations
Ashok Kulasekhar
Keywords
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