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目的:了解剖宫产前肌注麻黄素对仰卧位综合征的预防作用。方法:选择ASAⅠ-Ⅱ级择期单胎剖宫产病人40例,随机分为A、B两组,每组20例,A组(实验组)术前20mim肌注麻黄素20mg,B组(对照组)术前20mim肌注生理盐水1ml,均用2%盐酸利多卡因行硬膜外麻醉,对比两组间SBP、DBP、P、SPO2改变。结果:实验组5mim、10mim、15mim、20mim、SBP及DBP与麻醉前比较无统计学差异(p>005),对照组20minSBP及10min、15min、20minDBP与麻醉前比较有统计学差异(p<005),见表2,两组间P、SPO2的变化无统计学差异(p>005),实验组10mim、15mim、20mim的BP及对照组15mim、20mimBP与其麻醉前比较有显著性差异(p<005),见表3。结论:剖宫产前肌注麻黄素可维持术中血压平稳,预防仰卧位综合征
Objective: To know the preventive effect of intramuscular injection of ephedrine on supine syndrome before cesarean section. Methods: Forty ASAⅠ-Ⅱ elective single-cesarean section patients were randomly divided into A and B groups, 20 cases in each group. Group A (experimental group) received intramuscular injection of 20 mg of ephedrine 20 mg before operation Group) 1mim intramuscular injection of normal saline 1ml, were treated with 2% lidocaine hydrochloride epidural anesthesia, compared between the two groups SBP, DBP, P, SPO2 changes. Results: There was no significant difference in 5mim, 10mim, 15mim, 20mim, SBP and DBP before and after anesthesia in experimental group (p> 005), and 20minSBP and 10min, 15min and 20min in control group <0 05), see Table 2, between the two groups P, SPO2 no significant difference (p> 0 05), the experimental group of 10mim, 15mim, 20mim of BP and control group 15mim, 20mimBP compared with before anesthesia Significant differences (p <0 05), Table 3. Conclusion: Intra-epidural intramuscular injection of ephedrine can maintain stable intraoperative blood pressure and prevent supine syndrome