Differences between patients with inpatient‐onset and outpatient‐onset acute lower gastrointestinal bleeding: An observational study
Open Access
- 6 February 2023
- journal article
- research article
- Published by Wiley in Journal of Gastroenterology and Hepatology
- Vol. 38 (5), 775-782
- https://doi.org/10.1111/jgh.16134
Abstract
Background and AimThe clinical severity and course of acute lower gastrointestinal bleeding (ALGIB) are believed to differ between inpatient-onset and outpatient-onset cases, but no reports have investigated these issues in detail. We aimed to evaluate the clinical differences between inpatient-onset and outpatient-onset ALGIB. MethodsMedical records of patients who had undergone emergency colonoscopy for ALGIB were retrospectively reviewed. The severity was evaluated using the NOBLADS score. Patients with obvious ALGIB relapse and/or persistent iron-deficiency anemia after emergency colonoscopy were considered to exhibit a poor clinical course. ResultsWe reviewed 723 patients with ALGIB and divided them into the inpatient-onset cohort (172 patients) and outpatient-onset cohort (551 patients). Compared with the outpatient-onset cohort, the inpatient-onset cohort had a significantly higher proportion of patients with a poor clinical course (51.2% vs 21.6%; P < 0.001) and a significantly higher mean NOBLADS score (3.6 +/- 1.1 vs 2.5 +/- 1.0; P < 0.001). The most common bleeding source was acute hemorrhagic rectal ulcer (52.3%) in the inpatient-onset cohort and colonic diverticular bleeding (29.4%) in the outpatient-onset cohort. Multivariate analysis showed that a platelet count < 15 x 10(4)/mu L and albumin concentration < 3 g/dL were significantly associated with a poor clinical course in the inpatient-onset cohort. ConclusionsThe clinical course was significantly worse in the inpatient-onset cohort than in the outpatient-onset cohort. The bleeding source, clinical characteristics, and clinical course differed between the inpatient-onset and outpatient-onset cohorts. The clinical course in the inpatient-onset cohort may depend on the patient's condition at ALGIB onset.Keywords
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