Objective:To investigate the laryngeal mask airway under different anesthesia methods undergoing radical mastectomy in breast modified. Methods:From 2012 February~2013 year in March in our hospital 58 cases of radical mastectomy for breast cancer patients as the research object, and were randomly divided into observation group and control group two groups, 29 cases in each group, the observation group adopted Intravenous Inhalation Anesthesia, the control group took the total intravenous anesthesia, analysis of relevant indicators, compared two groups the time of anesthesia hemodynamic changes, the incidence of complications. Results:in the observation group, the extubation time was shorter than the control group (P<0.05), the laryngeal mask airway support differences in each time period of two groups of HR, MAP, SpO2 etc. comparing no statistical significance (P>0.05), the observation group the incidence of postoperative complications was lower than that of control group(P<0.05). Conclusion:Compared to the laryngeal mask airway support under total intravenous anesthesia, Intravenous inhalation combined anesthesia with low incidence of postoperative complications can save the recovery time.%目的：探讨喉罩通气下不同麻醉方法在乳腺癌改良根治术中的应用。方法：选取58例实施过乳腺癌根治术的患者，并随机分成观察组和对照组，每组29例；观察组采取静吸复合麻醉，对照组采取全凭静脉麻醉。分析对比两组麻醉时间相关指标、血流动力学变化及并发症发生率。结果：观察组拔管时间短于对照组，差异有统计学意义(t=7.9425，P＜0.05)，在喉罩通气支持下各时间段两组心率(HR)、平均动脉压(MAP)及血氧饱和度(SpO2)等对比无差异；观察组术后并发症发生率低于对照组，差异有统计学意义(x2=11.3344，P＜0.05)。结论：相较于喉罩通气支持下全凭静脉麻醉而言，静吸复合麻醉术后并发症发生率低，术后苏醒时间较快。
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