Objective This study evaluated the risks and outcomes of capsule retention during capsule endoscopy (CE) for investigating small bowel disease. Capsule retention is the most serious complication of CE. Methods Before CE, the gastrointestinal tract was evaluated for blockages with computerized tomography. Analysis of CE was made retrospectively. Results Capsule endoscopy was used to investigate obscure bleeding (90.2%; n=324) or other symptoms (9.8%; n=35). The capsule retention rate was 11/359 (3.1%); it was retained in a malignant lesion area (adenocarcinoma or melanoma) in two patients (18.2%), in the small bowel in an ulcerated area in five patients (45.5%), and in the oesophagus/stomach in four patients (36.4%) due to dysmotility. None of the patients had symptoms of obstruction. Conclusions Scanning patients before CE did not predict capsule retention. Retention is a complication of CE, but occurs as a result of the underlying disease. The risk of retention is increased in patients with motility disorders, suspected small bowel ulcers or malignancies.
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机译：目的本研究评估了胶囊内窥镜检查中小肠疾病时胶囊保留的风险和结果。胶囊保留是CE最严重的并发症。方法在进行CE之前，通过计算机断层扫描对胃肠道的阻塞情况进行评估。回顾性分析CE。结果采用胶囊内窥镜检查以观察模糊的出血（90.2％； n = 324）或其他症状（9.8％； n = 35）。胶囊保留率为11/359（3.1％）； 2例（18.2％）保留在恶性病变区域（腺癌或黑色素瘤），5例保留在溃疡区域的小肠（45.5％），4例保留在食道/胃中（36.4％）由于运动障碍。所有患者均无阻塞症状。结论在CE之前扫描患者不能预测胶囊保留。保留是CE的并发症，但由于潜在疾病而发生。患有运动障碍，怀疑是小肠溃疡或恶性肿瘤的患者，发生retention留的风险会增加。
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