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Risk factors for colonic diverticular hemorrhage: Japanese multicenter study

Kaori Suzuki1, Shiori Uchiyama, Kento Imajyo

  • 1Department of Gastroenterology, Yokohama Rosai Hospital, Yokohama, Japan.

Digestion
|April 5, 2012
PubMed

Insights

Bilateral diverticula, affecting both sides of the colon, are the primary risk factor for diverticular hemorrhage. Understanding this location is key to predicting and managing lower gastrointestinal bleeding.

Area of Science:

  • Gastroenterology
  • Clinical Research
  • Epidemiology

Background:

  • Diverticular hemorrhage is a leading cause of lower gastrointestinal bleeding, with increasing incidence in Japan.
  • The precise etiology of diverticular hemorrhage remains incompletely understood.
  • This study aimed to identify significant risk factors associated with diverticular hemorrhage.

Purpose of the Study:

  • To investigate the risk factors for diverticular hemorrhage.
  • To analyze patient comorbidities, medications, and colonoscopic findings.
  • To determine independent predictors of diverticular hemorrhage.

Main Methods:

  • A matched case-control study was conducted.
  • 103 patients with diverticular hemorrhage (cases) were compared to patients with colonic diverticulosis without bleeding (controls).
  • Data on comorbidities, medications, and colonoscopy findings were collected from medical records.

Main Results:

  • Significant differences between groups included body weight, BMI, hypertension, ischemic heart disease, and low-dose aspirin use.
  • Patients with diverticular hemorrhage had a significantly higher prevalence of bilateral diverticula (right and left hemicolon).
  • Multiple regression analysis identified only diverticular location as a significant risk factor (p = 0.0021).

Conclusions:

  • Bilateral diverticular location is an independent risk factor for diverticular hemorrhage.
  • This finding aids in understanding the pathogenesis and predicting the risk of diverticular bleeding.
Abstract

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