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Ischemic colitis. Does right colon location mean worst prognosis?
Vincenzo Vigorita1, Marta Paniagua García-Señoráns1, Gianluca Pellino2
1Unidad de Cirugía Colorrectal, Hospital Álvaro Cunqueiro, Vigo, Spain.
Introduction:
Most patients with ischemic colitis have a favourable evolution; nevertheless, the location in the right colon has been associated with a worse prognosis. The purpose of this study is to compare the clinical presentation and results of right colon ischemic colitis (CICD) with ischemic colitis of other colonic segments (non-CIDC).
Methods:
Retrospective, observational study of patients admitted to our hospital with ischemic colitis between 1993 and 2014, identified through a computerized search of ICD9 codes. They were divided into 2 groups: CICD and non-CICD. Comorbidities, clinical presentation, need for surgery, and mortality were compared. Multivariate analysis was performed using logistic regression adjusting for age and sex. Statistical significance was established at a value of P < 0.05.
Results:
A total of 204 patients were identified, 61 (30%) with CICD; 61% of CICD patients required surgery compared to 22% of non-CICD patients (P < 0.001). Differences in post-surgical mortality (32% vs 55%) and overall mortality (20% vs 15%) were not statistically significant. CICD patients had more commonly unfavourable outcomes than non-CICD patients (61% vs 25%, P < 0.001). The odds ratio (OR) for surgery was 5.28 and 4.47 for unfavourable outcomes for patients with CICD.
Conclusions:
CICD patients have a worse prognosis than non-CICD patients, 5 times more likely to need surgery and 4 times more likely to have unfavourable outcomes.
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