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Postoperative Sigmoidoscopy and Biopsy After Elective Endovascular and Open Aortic Surgery for Preventing Mortality by Colonic Ischemia (PSB-Aorta-CI): Protocol for a Prospective Study

Postoperative Sigmoidoscopy and Biopsy After Elective Endovascular and Open Aortic Surgery for Preventing Mortality by Colonic Ischemia (PSB-Aorta-CI): Protocol for a Prospective Study

Bowel ischemia was documented in 35% of patients. Of these, 16 patients had grade I or grade II ischemia and repeat endoscopy. Grade I ischemia was defined as mucosal ischemia; grade II ischemia was characterized by involvement of the mucosa and the muscularis layers; and grade III ischemia was described by transmural ischemia, gangrene, and perforations.

Artur Rebelo, Ulrich Ronellenfitsch, Jumber Partsakhashvili, Endres John, Carsten Sekulla, Sebastian Krug, Jonas Rosendahl, Patrick Michl, Jörg Ukkat, Jörg Kleeff

JMIR Res Protoc 2022;11(12):e39071