According to the journal article: f.Yi et al 2011- "combined colonoscopy and three quadrant hemorrhoidal ligation: 1000 cases." conventional colonoscopy was performed under moderate sedation, followed immediate-ly by synchronous three-quadrant hemorrhoidal ligation, using a triview¿ anoscope and short-shot¿ hemor-rhoidal ligator (another manufacturer).One thousand patients underwent colonoscopy with simultaneous three-quadrant internal hemorrhoid ligation (previously reported) over the study period.18 (1.8 percent) required elective completion surgical hemorrhoidectomy for persistent symptoms (subject of this report).
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