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

Artur Rebelo   ¹ , MD ;   Ulrich Ronellenfitsch   ¹ , MD ;   Jumber Partsakhashvili   ¹ , MD ;   Endres John   ¹ , MD ;   Carsten Sekulla   ¹ , PhD ;   Sebastian Krug   ² , MD ;   Jonas Rosendahl   ² , MD ;   Patrick Michl   ² , MD ;   Jörg Ukkat   ¹ , MD ;   Jörg Kleeff   ¹ , MD

¹ Department of Visceral, Vascular and Endocrine Surgery, Universitätsklinikum Halle, Halle, Germany

² Department of Gastroenterology, Universitätsklinikum Halle, Halle, Germany