Abstract
Surgically altered gastrointestinal (GI) tract anatomy hinders deep enteroscopy. While enteroscopy-assisted endoscopic retrograde cholangiopancreatography (ERCP) in patients with altered GI anatomy has been heavily investigated, the role of non-ERCP balloon-assisted enteroscopy (BAE) has yet to be fully elucidated.Please check and confirm the author names and initials are correct. Also, kindly confirm the details in the metadata are correct.I have checked all you asked and have no correction. Thank you. A multicenter retrospective study of non-ERCP BAEs in patients with surgically altered GI tract anatomy at two tertiary academic hospitals was performed from January 2006 to December 2020. Altered GI tract anatomy was defined by surgical reconstruction affecting the length, angle, or overall trajectory of the endoscope during the intended approach. The main outcome measurements included technical success rate, diagnostic and therapeutic yields, and complication rate.Please check the edit made in the title of the article and correct if necessary.No more correction. Thank you. A total of 68 patients with surgically altered GI tract anatomy underwent 56 antegrade and 24 retrograde non-ERCP BAE procedures. The technical success rate was 86.2% in both, including 83.9% via antegrade approach and 91.7% via retrograde approach. Antegrade approach in Roux-en-Y anatomy was associated with the lowest success rate of 77.8%, whereas retrograde approach in patients with colon resection resulted in the highest rate of 100%. The diagnostic and therapeutic yields of non-ERCP BAE were 79.4% and 82.9%, respectively. The diagnostic yields varied according to the procedural indications. The major complication was luminal perforation in one case (1.3%). Non-ERCP BAE is effective and safe via both antegrade and retrograde approaches with a high technical success rate and diagnostic and therapeutic yields in patients with surgically altered GI tract anatomy.
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