International journal of obstetric anesthesia
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Int J Obstet Anesth · Apr 2013
Randomized Controlled Trial Comparative StudyA comparison of the haemodynamic effects of lateral and sitting positions during induction of spinal anaesthesia for caesarean section.
Hypotension during spinal anaesthesia occurs commonly in parturients. By influencing spread of local anaesthetic, maternal position may affect the speed of onset of sensory block and thus the haemodynamic effects. The aim of this study was to determine whether inducing spinal anaesthesia for caesarean section using plain bupivacaine in the lateral position would result in less hypotension compared with the sitting position. ⋯ Hypotension occurred less frequently when spinal anaesthesia for caesarean using plain bupivacaine was induced with patients in the lateral compared with the sitting position. Values for the lowest recorded mean arterial pressure were greater but values for the lowest recorded systolic blood pressure were similar for patients in the lateral position group.
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Int J Obstet Anesth · Apr 2013
Review Meta AnalysisA meta-analysis of the effect of inspired oxygen concentration on the incidence of surgical site infection following cesarean section.
There has been interest in using high inspired oxygen concentrations to reduce surgical site infections in the obstetric population. Previous meta-analyses looking at the effect of high-concentration oxygen in other surgical populations have reported conflicting results. However, no meta-analysis has been performed on women undergoing cesarean section, who are generally a healthier population and thus may have different outcomes. The aim of this study was to complete a meta-analysis comparing high (>60%) and low (<40%) inspired concentrations of oxygen and determine the risk of surgical site infections in patients undergoing cesarean section. ⋯ There is no evidence to suggest a difference in risk of surgical site infection by administration of high inspired oxygen concentrations among women undergoing cesarean section. Future studies with better adherence to the intervention may affect the results of this analysis.
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Int J Obstet Anesth · Apr 2013
Review Meta AnalysisUtility of B-type natriuretic peptides in preeclampsia: a systematic review.
Preeclampsia and its complications may be associated with elevated B-type natriuretic peptide levels during and after pregnancy. ⋯ Preeclampsia is associated with elevated natriuretic peptide levels. Cardiovascular complications and preterm delivery in this setting may also be associated with elevated natriuretic peptide levels. Large prospective studies of natriuretic peptide measurement in preeclampsia are needed to determine whether elevated levels predict the development of severe preeclampsia and/or associated complications.