title: Predictive factors for colonic diverticular rebleeding: a retrospective analysis of the clinical and colonoscopic features of 111 patients.
abstract: OBJECTIVE
  Colonic diverticular bleeding can stop spontaneously or be stopped by endoscopic hemostasis. We analyzed the clinical and colonoscopic features of patients with colonic diverticular bleeding to establish the predictive factors for rebleeding.
  
  
  METHODS
  A total of 111 patients (median age, 72 years) with colonic diverticular bleeding in Aso Iizuka Hospital between April 2007 and July 2010 were enrolled. Age, sex, body mass index (BMI), comorbidity, medication, location of bleeding, colonoscopic findings and hemostatic methods were analyzed retrospectively from the hospital records.
  
  
  RESULTS
  The most common sites of bleeding were the ascending (39.6%) and sigmoid (29.7%) colon. Overt rebleeding occurred in 30 patients (27.0%). Spontaneous hemostasis was seen in 81 patients (73.0%), and endoscopic hemostatic treatment was performed in 30 patients. The BMI in the patients with colonic diverticular rebleeding was significantly higher than in patients without rebleeding. Colonoscopic findings of actively bleeding or nonbleeding visible vessels in the responsible diverticula were more frequent in the group with rebleeding.
  
  
  CONCLUSIONS
  A higher BMI and colonoscopic findings of actively bleeding or nonbleeding visible vessels can be used as predictive factors for colonic diverticular rebleeding. Patients with such findings should be carefully followed up after hemostasis of the initial colonic diverticular bleeding.
authors: Department of Gastroenterology, Aso Iizuka Hospital, Iizuka, Japan.
authors: Yoshimasa
authors: Y
authors: Tanaka
authors: Yasuaki
authors: Y
authors: Motomura
authors: Kazuya
authors: K
authors: Akahoshi
authors: Risa
authors: R
authors: Iwao
authors: Keishi
authors: K
authors: Komori
authors: Naotaka
authors: N
authors: Nakama
authors: Takashi
authors: T
authors: Osoegawa
authors: Soichi
authors: S
authors: Itaba
authors: Masaru
authors: M
authors: Kubokawa
authors: Terumasa
authors: T
authors: Hisano
authors: Eikichi
authors: E
authors: Ihara
authors: Kazuhiko
authors: K
authors: Nakamura
authors: Ryoichi
authors: R
authors: Takayanagi