Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, 3015 CE Rotterdam, The Netherlands.
Gastrointest Endosc. 2010 Jun;71(7):1319-23. doi: 10.1016/j.gie.2010.02.003.
Despite advances in training and equipment, complete colonoscopy fails, even in experienced hands, in up to 10% of cases. Double-balloon endoscopy (DBE) has been successfully used to complete colonoscopy in these patients. Single-balloon endoscopy (SBE) has become established for small-bowel enteroscopy. However, it has yet to be studied for use in colonoscopy.
To assess the efficacy, performance, and safety of single-balloon colonoscopy.
Prospective cohort study.
Academic tertiary referral center.
Patients with previously failed conventional colonoscopy.
23 single-balloon colonoscopy procedures were performed in 22 patients: median age 53 (range 19-75) years; 14 females, 8 males. SBE colonoscopy succeeded in cecal intubation in 22 (96%) procedures, with a median total procedure time of 30 (range 20-60) minutes. SBE colonoscopy was normal in 9 cases but resulted in a positive diagnosis in 13 (57%) procedures, including polyps (n = 6), active Crohn's disease (n = 4), Crohn's-related stricture (n = 1), and diverticulosis (n = 2). Seven (30%) procedures were therapeutic including 1 case with balloon dilation and 6 cases with polypectomy. No complications were encountered.
Limited sample size, no direct comparison with double-balloon endoscopy.
Single-balloon-assisted colonoscopy seems a safe and effective method for completing colonoscopy in patients with previously failed or difficult colonoscopy. The outcomes are similar compared with previous studies with DBE colonoscopy in this patient group.
尽管在培训和设备方面取得了进步，但即使是经验丰富的医生，也有高达 10%的病例无法完成全结肠镜检查。双气囊内镜（DBE）已成功用于完成这些患者的结肠镜检查。单气囊内镜（SBE）已被确立用于小肠内镜检查。然而，它尚未被研究用于结肠镜检查。
评估单气囊结肠镜检查的疗效、性能和安全性。
前瞻性队列研究。
学术三级转诊中心。
先前常规结肠镜检查失败的患者。
22 例患者共进行了 23 例 SBE 结肠镜检查：中位年龄 53 岁（范围 19-75 岁）；14 例女性，8 例男性。SBE 结肠镜检查成功插管至盲肠的比例为 22 例（96%），总手术时间中位数为 30 分钟（范围 20-60 分钟）。SBE 结肠镜检查正常的有 9 例，但在 13 例（57%）中得出阳性诊断，包括息肉（n=6）、活动性克罗恩病（n=4）、克罗恩病相关狭窄（n=1）和憩室病（n=2）。7 例（30%）为治疗性操作，包括 1 例球囊扩张和 6 例息肉切除术。未发生并发症。
样本量有限，与双气囊内镜检查无直接比较。
在先前结肠镜检查失败或困难的患者中，单气囊辅助结肠镜检查似乎是一种安全有效的方法。与该患者组中 DBE 结肠镜检查的既往研究相比，结果相似。
