疑似小肠出血患者双气囊小肠镜全小肠对接检查的临床研究

Clinical Study on Combined Double-balloon Enteroscopy in Patients With Suspected Small Bowel Bleeding

背景:双气囊小肠镜(DBE)全小肠对接检查在疑似小肠出血(SSBB)患者诊治中发挥重要作用。目的:调查SSBB患者DBE全小肠对接检查情况并分析其临床特征。方法:纳入2018年6月—2023年4月安徽省蚌埠市第三人民医院和安徽医科大学第一附属医院需行DBE对接检查的94例SSBB患者,并分析其临床特征。结果:共54例SSBB患者完成DBE全小肠对接检查,对接成功率为57.4%。因发现出血病变而中止对接检查者10例(10.6%),肠腔狭窄而中止对接检查者5例(5.3%),操作中出现进镜困难而中止对接检查者25例(26.5%)。SSBB患者DBE全小肠对接率与不同对接时间、医师既往小肠镜操作例数有关(P<0.05),而与患者性别、年龄、出血表现形式、烟酒嗜好、营养风险、腹部手术史、肛周病变、自身免疫病、术前贫血、术前白蛋白水平、进镜途径均无关(P>0.05)。ROC曲线结果显示,先进镜深度的截断值为385 cm时,评估SSBB患者完成全小肠对接检查的敏感性为72.2%,特异性为77.5%,曲线下面积为0.800(95%CI:0.705~0.875,P<0.001)。结论:SSBB患者DBE全小肠对接率与不同对接时间、医师既往小肠镜操作例数有关。先进镜深度达到385 cm以上,80%的SSBB患者有望实现全小肠对接检查。

Background:Combined double-balloon enteroscopy(DBE)plays an important role in the diagnosis and treatment of patients with suspected small bowel bleeding(SSBB).Aims:To investigate the performance of combined DBE in patients with SSBB and their clinical features.Methods:A total of 94 patients with SSBB underwent combined DBE from June 2018 to April 2023 at the Third People′s Hospital of Bengbu and the First Affiliated Hospital of Anhui Medical University were enrolled,and the clinical features were analyzed.Results:Fifty-four SSBB patients completed the combined DBE,and the combination rate was 57.4%.Ten patients(10.6%)stopped combined DBE due to discovery of bleeding lesions.Five patients(5.3%)stopped combined DBE due to intestinal stenosis.Twenty-five patients(26.5%)stopped combined DBE due to difficulty in insertion.Combined DBE rate in SSBB patients was correlated with the combination time and the number of previous DBE for endoscopists(P<0.05),but not the gender,age,bleeding manifestations,tobacco smoking and alcohol drinking,nutritional risk,abdominal operation history,perianal lesions,autoimmune diseases,preoperative anemia,preoperative albumin level,and enteroscopy approach(P>0.05).ROC curve showed that when the cut-off value of first insertion depth was 385 cm,the sensitivity and specificity for successful combined DBE in SSBB patients were 72.2%and 77.5%,respectively,and the area under ROC curve was 0.800(95%CI:0.705-0.875,P<0.001).Conclusions:The combined DBE rate in SSBB patients is correlated with the combination time and the number of previous DBE for endoscopists.80%of the SSBB patients are expected to complete the combined DBE when the first insertion depth is greater than 385 cm.