Background:

Gangrenous cholecystitis (GC) must be promptly treated for its high morbimortality. The object of our study is to identify clinical, laboratory or ultrasound factors that might us diagnose GC.

Method:

A Retrospective cohort study is devised including all patients admitted to Hospital de Laredo (Cantabria, Spain) between 2015 and 2017 with the diagnose of acute cholecystitis and having been operated. Patients were classified in two groups according to pathology: GC and non-GC. We compared their demographics characteristics, comorbidities, laboratory parameters and ultrasound findings.

Results:

A total of 115 patients were operated, of whom 32 had CG and 83 CNG. Neutrophil-to-lymphocyte ratio and C-reactive protein (CRP) showed significantly increased levels in GC group (p = 0.042) and CRP (p < 0.0001). To CRP showed an area under the ROC curve of 0.872 (95% confidence interval: 0.797-0.946). Acalculous cholecystitis was significantly associated to GC (24.1 vs. 7%; p < 0.005). In the multivariate analysis only the CPR showed as a predictive factor. A cutting point of CRP at 15.25 mg/dl, that had high sensibility (90.6%) and high negative predictive value (95%).

Conclusion:

CRP helped identify patients with CG to indicate early surgical intervention.

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