Conclusions: The entire small intestine can be examined by double-balloon push enteroscopy with the combination of both oral and anal routes.

• 全麻下经口腔进镜推进式双气囊小肠镜检查的患者耐受性最佳，其后依次为非麻醉经肛门进镜、非麻醉经口腔进镜和小肠钡灌检查。