摘要目的：比较鼻胃管（ NG）与鼻空肠管（ NJ）营养对重症急性胰腺炎（ SAP）患者的安全性及有效性。方法以鼻胃管、鼻空肠管、SAP、肠内营养为检索词，系统检索 PubMed、EMbase、Cochrane Library、万方和中国知网数据库的文献，检索时间截止2016年6月。应用随机效应模型进行Meta分析。结果5篇随机对照试验文献共264例患者（136例NG组和128例NJ组）纳入研究，两组患者的不良事件发生率[病死率（RR＝0．77，95％CI 0．42～1．41，P＝0．39）、感染发生率（RR＝0．77，95％CI 0．45～1．30，P＝0．39）、消化道不良反应发生率（RR＝1．26，95％CI 0．73～2．16，P＝0．41）、停止鼻饲比例（RR＝0．66，95％CI 0．10～4．10，P＝0．65）、MODS发生率（RR＝0．98，95％CI 0．71～1．35，P＝0．90）]、能量平衡比例（RR＝1．00，95％CI 0．97～1．03，P＝0．39）、平均住院时间（RR＝0．98，95％CI 0．71～1．35，P＝0．90）的差异均无统计学意义。结论 NG与NJ营养对SAP患者的安全性及有效性效果相当，但NG营养操作更为简便，有更高的临床应用价值。

abstractsObjective To compare the safety and efficiency of nasogastric ( NG ) feeding with nasojejunal (NJ) feeding in treating severe acute pancreatitis ( SAP).Methods The terms "NG tube","NJ tube","SAP"and "enteral nutrition"were used for literature search in PubMed , Embase, Cochrane Library, WanFang and CNKI databases and the publication deadline was June 1, 2016.Random effect model was used for Meta analysis .Results A total of 5 random clinical trials involving 264 patients ( 136 in NG group and 128 in NJ group ) were included .There was no statistical difference on the incidence of adverse events (mortality:RR=0.77, 95%CI 0.42~1.41, P=0.39; infection complications: RR=0.77, 95%CI 0.45~1.30, P=0.39; digestive complications: RR=1.26, 95%CI 0.73~2.16, P=0.41; stopping nasogastric proportion:RR=0.66, 95%CI 0.10~4.10, P=0.65;MODS rate:RR=0.98, 95%CI 0.71~1.35, P=0.90; the percentage of energy balance: RR=1.00, 95%CI 0.97~1.03, P=0.39 and the average length of hospital stay:RR=0.98, 95%CI 0.71~1.35, P=0.90).Conclusions NG feeding was safe and effective , which was comparable with NJ feeding .NG feeding was more convenient with a higher clinical value .