Predictors of 90-day morbidity and mortality after Frey procedure for chronic pancreatitis

The literature on predictors for postoperative complications after Frey procedure (FP) is sparse. The aim of this study is to report our experience with 90-day complications of FP and predictors for complications. All patients with chronic pancreatitis (CP), who underwent a FP between August 2007 and July 2021, were retrospectively reviewed. Univariate and multivariate analysis were used to identify predictors of 90-day morbidity and mortality. Of the total 270 patients, 84 (31%) patients developed at least one postoperative complication. Major complications occurred in 32 (12%) patients. Most common complication was wound infection and it was significantly more common in stented patients (p = 0.017). Pancreatic fistula and post pancreatectomy hemorrhage (PPH) developed in 7.4% of patients. Thirteen patients (4.8%) required early re-operation and the most common cause of re-exploration was PPH. 90-day mortality was 1% (n = 3) and all 3 patients required re-exploration for PPH. Median postoperative hospital stay was 9 (5–51) days. Perioperative blood transfusions was the only independent predictor of postoperative complications after FP. Frey procedure is an acceptable treatment modality with low rates of mortality and reasonable perioperative morbidities. Minimizing blood transfusions may further improve 90-day outcomes. •Frey procedure is associated with acceptable perioperative morbidity and a low mortality.•Postoperative major complications developed in 12% of patients.•Duration of CP & blood transfusions were independent predictors of postoperative complications.