Predictors of 90-day Colonic Diverticular Recurrent Bleeding and Readmission

OBJECTIVE: Colonic diverticular bleeding often recurs, and readmissions are common. The aim of this study was to identify predictors of colonic diverticular recurrent bleeding and readmission within 90 days. METHODS: Subjects comprised 144 patients diagnosed with colonic diverticular bleeding who received inpatient hospital care between January 2012 and June 2017. A retrospective comparative study was carried out regarding the clinical characteristics during the hospital stay by dividing the cases into 2 groups: patients with recurrent bleeding requiring readmission within 90 days (n=17) and patients without recurrent bleeding (n=127). RESULTS: A univariate analysis showed that recurrent bleeding and readmission were significantly more frequent among cases with hypovolemic shock on admission (p=0.009), blood transfusion during hospitalization (p=0.029), and hyperlipidemia (p=0.020) than among others. Shock on admission (odds ratio, 5.118; 95% confidence interval, 1.168-22.426, p=0.030) remained a significant predictor on a multivariate analysis. CONCLUSION: Shock may predict recurrent colonic diverticular bleeding and readmission within 90 days. Careful and adequate endoscopic hemostasis is recommended for patients showing shock on admission.