Objective : To explore the effect of evidence-based nursing in preventing perioperative hypothermia of patients undergoing thoracotomy .Methods : A total of 60 patients ,who were scheduled for thoracotomy with general anesthesia during August 2013 and May 2014 ,were selected and randomly divided into the evidence-based group and the control group with 30 cases in each .While the control group was treated with routine insulation measures ,the evidence-based group received warming with inflatable heating blanket .The changes of intraoperative body temperature in two groups were observed and recorded . The extubation time ,amount of bleeding ,incidence rate of shivering ,and situation of incision infection were compared between the two groups .Results : There was no significant difference between the two groups regarding general information .The body temperature of different time points in evidence-based group was significantly higher than that in control group one hour after surgery (P< 0 .05) .There were statistically significant differences regarding the amount of bleeding ,the time of extubation , the incidence rate of postoperative shivering ,and the rate of incision infection between the two groups (P< 0 .05) .Conclusions :Evidence-based nursing practice are conducive to reducing the incidence rate of intraoperative hypothermia in patients undergoing thoracotomy .It can also promote anesthesia recovery ,reduce the amount of bleeding ,and decrease the incidence rate of wound infection and shivering .It is worthy of clinical application .%目的：探讨循证护理预防开胸手术患者围术期低体温的效果。方法：选择2013年8月—2014年5月择期行全麻下开胸手术的患者60例，随机分为循证组和对照组，各30例。对照组采用常规保温护理措施，循证组应用充气式升温毯保温。观察、记录两组患者手术期的体温变化，比较两组的拔管时间、出血量、寒战发生率、切口感染情况等。结果：两组患者一般资料的差异无统计学意义（P＞0．05）。循证组手术1 h 后不同时间点的体温明显高于对照组（P＜0．05）。两组患者出血量、拔管时间、术后寒战发生率、切口感染率差异均有统计学意义（P＜0．05）。结论：循证护理实践有利于降低开胸患者术中低体温的发生率，并能促进患者的麻醉复苏、降低出血量、减轻伤口感染与寒战的发生率，值得推广。
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