Risk factors for readmission after a cholecystectomy: a case-control study




Daniel Garcia, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
Antonia Pastore, Department of Public Health. School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
Javier Rodriguez, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
Fernando Crovari, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
Jaime Cerda, Department of Public Health. School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
Patricia Rebolledo, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
Pablo Achurra, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
Eduardo Viñuela, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
Jorge Martinez, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
Martin Dib, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
Eduardo Briceño, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile


Objective: The aim of this study was to assess the risk factors associated with 30-day hospital readmissions after a cholecystectomy. Methods: We conducted a case–control study, with data obtained from UC-Christus from Santiago, Chile. All patients who underwent a cholecystectomy between January 2015 and December 2019 were included in the study. We identified all patients readmitted after a cholecystectomy and compared them with a randomized control group. Univariate and multivariate analyses were conducted to identify risk factors. Results: Of the 4866 cholecystectomies performed between 2015 and 2019, 79 patients presented 30-day hospital readmission after the surgical procedure (1.6%). We identified as risk factors for readmission in the univariate analysis the presence of a solid tumor at the moment of cholecystectomy (OR = 7.58), high pre-operative direct bilirubin (OR = 2.52), high pre-operative alkaline phosphatase (OR = 3.25), emergency admission (OR = 2.04), choledocholithiasis on admission (OR = 4.34), additional surgical procedure during the cholecystectomy (OR = 4.12), and post-operative complications. In the multivariate analysis, the performance of an additional surgical procedure during cholecystectomy was statistically significant (OR = 4.24). Conclusion: Performing an additional surgical procedure during cholecystectomy was identified as a risk factor associated with 30-day hospital readmission.



Keywords: Cholecystectomy. Hospital readmission. Risk factor.