TIME TRENDS IN THE TREATMENT AND PROGNOSIS OF RESECTABLE PANCREATIC CANCER IN A LARGE TERTIARY REFERRAL CENTRE

Background: Mortality for pancreatic cancer has remained unchanged over the last 20-30 years. The aim of the present study was to analyze the survival trends in a selected population of patients who underwent resection for pancreatic cancer at a single institution. Methods: Included were 544 patients who underwent pancreatectomy for pancreatic cancer between 1990-2009. Patients were categorized into two subgroups according to the decade in which resection was performed (1990-1999 and 2000-2009). Predictors of survival were analyzed by univariate and multivariate analysis. Results: There were 114 (21%) resections in the period 1990-1999 and 430 (79%) in the period 2000-2009 (P<0.0001). The length of hospital of stay (LOS) (16 days versus 10 days, P < 0.001) and the postoperative mortality (2.6% versus 1.1%, P = 0.160) decreased over time. The median disease-specific survival (DSS) significantly increased from 16 months in the first period to 29 months in the second period (P< 0.001). Following multivariable analysis, poorly differentiated tumour (HR = 3.1, P<0.001), lymphnode metastases (HR = 1.9, P< 0.001), R2 resection (HR 3.2 P< 0.0001), no adjuvant therapy (HR 1.6, P<0.001) and the resection performed in the period 1990-1999 (HR 2.18, P<0.001) were significant independent predictors of poor outcome. Conclusions: Long-term survival after surgery for resected pancreatic cancer significantly improved over the time. Improved patient selection and the routine case use of adjuvant therapy may account for this improvement.