title: [The risk factors for colonic diverticular bleeding].
abstract: OBJECTIVE
  Colonic diverticular bleeding cases account for 30-40% of the lower gastrointestinal bleeding, among which, 3-5% appear to be massive bleeding. The purpose of this study was to evaluate the risk factors for colonic diverticular bleeding diagnosed by colonoscopic examination.
  
  
  METHODS
  Among the 1,003 patients, who were identified to have colonic diverticulosis including sleeding by diverticulitis and diverticular bleeding coding search, 216 patients had diverculosis, and they were divided into two groups: one with diverticular bleeding, and the other without bleeding. We evaluated the potential risk factors for diverticular bleeding, based on age, gender, location of diverticulum, comorbidities related to atherosclerosis, smoking, alcohol and medications, and compared them between both groups.
  
  
  RESULTS
  Among the 216 patients, we observed colonic diverticular bleeding in 35 patients (16.2%). The mean age of the bleeding group was significantly older than that of non-bleeding group. No difference was observed regarding gender ratio. Right colonic diverticula were common in both groups, but there were higher proportion of patients with bleeding in bilateral diverticuosis. Old age, bilateral diverticulosis, presence of atherosclerosis related diseases (hypertension, diabetes mellitus, ischemic heart disease, obesity), use of aspirin, NSAIDs and calcium channel blocker, increased the risk of bleeding. In a multivariate analysis, use of aspirin and bilateral diverticulosis were identified as independent risk factors for colonic diverticular bleeding.
  
  
  CONCLUSIONS
  Since the patients who took aspirin and/or had bilateral colonic diverticulosis increased the risk of bleeding from divertuculi. As such, caution and education of patients are required.
authors.affiliation: Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul, Korea.
authors.forename: Seungchul
authors.initials: S
authors.lastname: Suh
authors.forename: Pyoung Ju
authors.initials: PJ
authors.lastname: Seo
authors.forename: Hyunkyung
authors.initials: H
authors.lastname: Park
authors.forename: Cheol Min
authors.initials: CM
authors.lastname: Shin
authors.forename: Hyun Jin
authors.initials: HJ
authors.lastname: Jo
authors.forename: Hyun Young
authors.initials: HY
authors.lastname: Kim
authors.forename: Sang Hyub
authors.initials: SH
authors.lastname: Lee
authors.forename: Young Soo
authors.initials: YS
authors.lastname: Park
authors.forename: Jin Hyeok
authors.initials: JH
authors.lastname: Hwang
authors.forename: Jin Wook
authors.initials: JW
authors.lastname: Kim
authors.forename: Sook Hyang
authors.initials: SH
authors.lastname: Jeong
authors.forename: Nayoung
authors.initials: N
authors.lastname: Kim
authors.forename: Dong Ho
authors.initials: DH
authors.lastname: Lee
authors.forename: In Sung
authors.initials: IS
authors.lastname: Song
authors.forename: Hyun Chae
authors.initials: HC
authors.lastname: Jung
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000627:therapeutic use; D001241:Aspirin / Q000627:therapeutic use; D002121:Calcium Channel Blockers / Q000627:therapeutic use; D003108:Colonic Diseases / Q000209:etiology*; D003113:Colonoscopy; D048909:Diabetes Complications; D004241:Diverticulum, Colon / Q000453:epidemiology*; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000188:drug therapy; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000150:complications; D009765:Obesity / Q000150:complications; D016017:Odds Ratio; D012307:Risk Factors
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D002121:Calcium Channel Blockers; D001241:Aspirin