Hematochezia with No Active Bleeding Source on Colonoscopy: Outcomes, Rebleeding Risk, and Follow-up Recommendations
摘要
The risk of rebleeding and mortality in patients with a single episode of hematochezia, a normal initial colonoscopy, spontaneous recovery, and no iron deficiency anemia has not been thoroughly investigated. This study aimed to assess the frequency of rebleeding in patients with hematochezia and initial colonoscopy showing no active source of bleeding, with a follow-up period of at least 1 year.
Methods and MaterialIn this retrospective observational cohort study, patients with hematochezia and initial colonoscopy showing no active bleeding source were followed for at least 1 year. Outcomes assessed included rebleeding, the need for repeat colonoscopy, and mortality from gastrointestinal causes. In cases of rebleeding, repeat colonoscopy findings including hemorrhoids, inflammatory bowel disease (IBD), polyps, diverticulosis, gastrointestinal cancers, and proctitis were documented and analyzed.
ResultsA total of 115 patients were studied, with a mean follow-up duration of 20.96 ± 18.7 months. Rebleeding occurred in 20% of patients (n = 23), with a mean time to rebleeding of 5.43 ± 8.50 months. Among these, 82.6% rebled within 6 months, and 17.4% after 6 months. Of the 23 patients with rebleeding, 5 underwent repeat colonoscopy: 2 had normal findings, 2 had hemorrhoids, and 1 was diagnosed with IBD. No mortality was reported during the follow-up period. Chronic kidney disease was identified as a significant risk factor for rebleeding (OR: 13.65, p = 0.037).
ConclusionNeoplastic lesions were rare in patients with hematochezia and rebleeding despite a normal initial colonoscopy. Given the absence of mortality and colonoscopy-related complications, the necessity of additional screening or repeat colonoscopy remains uncertain and may not be routinely warranted.