title: Treatment of rectal hemorrhage by coil embolization.
abstract: Four patients, aged 54-84 years, presenting with life-threatening rectal bleeding from the superior hemorrhoidal artery, underwent percutaneous fibered platinum coil embolization via coaxial catheters. Pre-procedure sigmoidoscopy had failed to identify the source of hemorrhage, because the rectum was filled with fresh blood. Embolization was technically and clinically successful in all four patients. Subsequent sigmoidoscopy confirmed the diagnoses in three patients as a solitary rectal ulcer, iatrogenic traumatic ulceration following manual evacuation, and a rectal Dieulafoy's lesion. The other case was angiographically seen to be due to a rectal angiodysplasia. Embolization is an effective procedure in life-threatening superior hemorrhoidal arterial bleeding when endoscopic treatment fails, and should be preferred to rectosigmoid resection.
authors: Department of Radiology, Hull Royal Infirmary, Anlaby Road, Hull, East Yorkshire HU3 2JZ, United Kingdom.
authors: C C
authors: CC
authors: Dobson
authors: A A
authors: AA
authors: Nicholson
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000792:Angiography; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012002:Rectal Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy*