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There is a paucity of literature evaluating new-onset diabetes mellitus (NODM) after resection of pancreatic cystic lesions (PCLs). We sought to characterize the incidence and risk factors associated with NODM after partial pancreatectomy for PCLs.We utilized the IBM MarketScan Database (2012-2018) to identify all nondiabetic adults who underwent partial pancreatectomy for PCLs. Patients with any other pancreatic disease were excluded. We performed Kaplan-Meier analysis and multivariable Cox proportional hazards regression to define the incidence and risk factors of postoperative NODM.Among 311 patients, the overall risk (95% confidence interval) of NODM was 9.1% (6.3-12.9%), 15.1% (11.3-20.2%), and 20.2% (15.3-26.4%) at 6, 12 and 24 months, respectively. Multivariable analysis (adjusted hazard ratio; 95% confidence interval) revealed that older age (1.97; 1.04-3.72; 55-64 vs 18-54 years), obesity (2.63; 1.35-5.12), hypertension (1.79; 1.01-3.17), and cardiovascular disease (2.54; 1.02-6.28) were independent predictors of NODM. Rates of NODM were similar after distal pancreatectomy versus pancreaticoduodenectomy.Within 2 years, 1 in 5 patients without any other pancreatic disease will develop NODM after partial pancreatectomy for PCLs. Those with advanced age, metabolic syndrome features, and/or cardiovascular disease may benefit from preoperative counseling and intensive postoperative monitoring, education, and treatment for diabetes mellitus.

OBJECTIVES: There is a paucity of studies evaluating predictors of new-onset diabetes mellitus (DM) following acute pancreatitis (AP-related DM). We utilized a population-based database to evaluate predictors of AP-related DM. METHODS: The Nationwide Readmissions Database (2010–2014) was utilized to identify all non-diabetic adults with an index primary diagnosis of acute pancreatitis (AP). Multiple exclusions were applied to identify cohorts with and without AP-related DM. A case-control study was conducted to identify risk factors for developing AP-related DM within the calendar year. RESULTS: We identified 2510 subjects with AP-related DM and 40,308 controls with AP who did not develop DM. Multivariable analysis revealed that increasing age (50–64 years, adjusted Odds Ratio [aOR], 1.35, 95% confidence interval [CI], 1.14–1.60), male sex (aOR, 1.2, 95% CI, 1.03–1.40), lowest income quartile (aOR, 1.48, 95% CI, 1.18–1.84), Elixhauser comorbidity index ≥3 (aOR, 1.47, 95% CI, 1.23–1.75), components of metabolic syndrome (aOR, 2.12, 95% CI, 1.21–3.70), severe AP (aOR, 1.60, 95% CI, 1.34–1.90), and recurrent AP (aOR, 1.46, 95% CI, 1.24–1.72) were independently associated with increased risk of AP-related DM. CONCLUSION: These population-level variables predictive of developing AP-related DM can potentially identify patients who may benefit from closer follow-up, intensive education, and implementation of preventative strategies.

Background: Compared with patients who undergo pancreatic surgery for chronic pancreatitis and malignancy, patients with pancreatic cystic lesions (PCLs) generally have normal adjacent pancreatic parenchyma. There is a paucity of literature evaluating new-onset diabetes mellitus (NODM) following PCL resection. We sought to characterize the incidence and risk factors associated with NODM following partial pancreatectomy for PCLs. Methods: We utilized the IBM MarketScan Database (2012-2018) to identify all non-diabetic adult patients who underwent elective partial pancreatectomy for PCLs. Rigorous stepwise exclusion criteria were applied to identify patients without other pancreatic disease. We performed time-to-event analyses using Kaplan-Meier curves and multivariable Cox proportional hazards regression to define the incidence and risk factors associated with postoperative NODM. Findings: Among 311 patients with PCLs who underwent partial pancreatectomy, the overall risk of NODM was 9.1% (95% CI 6.3-12.9%), 15.1% (95% CI 11.3-20.2%), and 20.2% (95% CI 15.3-26.4%) at six, 12 and 24 months, respectively. Multivariable analysis revealed that older age (55-64 years, adjusted Hazard Ratio (aHR) 1.97, 95% CI 1.04-3.72 vs. 18-54 years), obesity (aHR 2.63, 95% CI 1.35-5.12), hypertension (aHR 1.79, 95% CI 1.01-3.17), and cardiovascular disease (aHR 2.54, 95% CI 1.02-6.28) were independent predictors of postoperative NODM. Rates of NODM were similar following distal pancreatectomy versus pancreaticoduodenectomy. Interpretation: Within two years, approximately one in five patients will develop NODM following partial pancreatectomy for PCLs. Those with advanced age, metabolic syndrome features, and/or cardiovascular disease may benefit from preoperative counselling for risk-reduction and intensive postoperative monitoring, education, and treatment strategies for DM. Funding: National Center for Advancing Translational Sciences, award number UL1TR002733. Declaration of Interests: None of the authors have any conflicts of interest or financial ties to disclose related to the current study. Ethics Approval Statement: This database is a publicly available population-based dataset. As such, the study was exempt from approval by the Ohio State University Institutional Review Board.