摘要目的 探讨影响内镜超声引导下细针穿刺术(EUS-FNA)的小胰腺癌诊断阳性率及术后并发症发生的相关因素.方法 回顾性分析2008年2月至2015年1月间上海长海医院接受EUS-FNA的51例肿瘤直径≤2 cm小胰腺癌患者,收集患者性别、年龄、瘤体直径、病灶部位、胰管扩张以及穿刺针数、每针的提插次数、穿刺时是否应用负压、穿刺物病理检查结果、穿刺术后并发症等临床资料,采用单因素及多因素logistic回归分析法确定影响EUS-FNA的小胰腺癌穿刺阳性率及术后并发症发生的相关因素.结果 51例小胰腺癌患者中30例穿刺阳性,21例穿刺阴性.单因素logistic分析结果显示,两组患者的年龄、性别、病灶部位、胰管扩张以及EUS-FNA穿刺针数、每针提插次数等因素的差异均无统计学意义(P值均＞0.05),仅使用10 ml负压穿刺的细胞学诊断阳性率显著高于使用20 ml负压穿刺者,差异有统计学意义(P =0.028).多因素logistic回归分析结果表明,10 ml负压穿刺更容易获得穿刺阳性结果(OR=0.281,95％ CI 0.093 ～0.851);术后发生并发症患者的每针提插次数高于未发生术后并发症者(30次比12次),差异有统计学意义(P=0.034).结论 10ml负压穿刺可提高EUS-FNA对小胰腺癌的诊断阳性率,增加每针提插次会增加术后并发症的发生率.

abstractsObjective To evaluate the factors influencing the diagnostic positivity of endoscopic ultrasonography guided fine needle aspiration (EUS-FNA) for small size pancreatic carcinoma (SSPC) and the occurrence of the adverse events after the aspiration.Methods 51 patients with SSPC ≤2 cm in diameter treated in Changhai hospital from February 2008 to January 2015 were retrospectively studied.The gender,age,tumor diameter,location,the dilation of pancreatic ducts,the number of aspirations and the needle passages,the usage of negative pressure during aspiration,the pathological examination of the specimens and postoperative adverse events and the like were collected.Univariate analysis and logistic regression analyze were applied to determine the factors influencing the diagnostic positivity of EUS-FNA for SSPC and postoperative adverse events.Results Among the 51 patients,positive cytology outcome were identified in 30 patients,which were negative in 21 patients.Univariate analysis identified that there were no statistical differences on the age,sex,dilated pancreatic duct,the number of aspirations and needle passages between two groups (P value ＞0.05).The diagnostic positivity using the 10ml minor negative pressure was obviously higher than that using 20 ml negative pressure,and the differences were statistically significant (P =0.028).Multivariate logistic regression identified 10ml minor negative pressure was easier to obtain positive cytology outcome (Odds Ratio 0.2810,95％ CI 0.093-0.851).In addition,the number of passages in patients with postoperative adverse events was greater than those without postoperative adverse events (30 vs 20),and the difference was statistically significant (P =0.034).Conclusions The introduction of 10 ml negative pressure could improve the diagnostic positivity of EUS-FNA for SSPC,and the increased number of needle passages may increase the occurrence rate of postoperative adverse events.