BACKGROUND: Patients with unresectable pancreatic and biliary cancers sometimes need decompression due to obstruction of the gastrointestinal tract and/or biliary tract. The aim of this study was to determine the prognostic factors associated with an indication for palliative bypass surgery in patients with unresectable pancreatic and biliary cancers. METHODS: Between April 2005 and September 2011, 37 patients with unresectable pancreatic and biliary cancers underwent palliative bypass surgery. Prognostic factors were searched for among clinical characteristics, operation-related factors, and tumor-related factors using a prospective database. RESULTS: The median survival time (MST) of these patients was 4.6 months, with a 6-month survival rate of 40.5 %. A multivariate Cox proportional hazards regression analysis revealed that mGPS >2 was the only independent prognostic factor for bypass surgery. Patients with an mGPS of 2 had an MST of 1.7 months, and they had a significantly worse prognosis than mGPS 0-1 patients with an MST of 6.3 months. CONCLUSIONS: The mGPS is useful for predicting survival after surgical decompression due to gastrointestinal obstruction in patients with unresectable pancreatic and biliary cancers. Patients with a poor mGPS may not be indicated for palliative bypass surgery.
BACKGROUND:Patients with unresectable pancreatic and biliary cancers sometimes need decompression due to obstruction of the gastrointestinal tract and/or biliary tract. The aim of this study was to determine the prognostic factors associated with an indication for palliative bypass surgery in patients with unresectable pancreatic and biliary cancers. METHODS: Between April 2005 and September 2011, 37 patients with unresectable pancreatic and biliary cancers underwent palliative bypass surgery. Prognostic factors were searched for among clinical characteristics, operation-related factors, and tumor-related factors using a prospective database. RESULTS: The median survival time (MST) of these patients was 4.6 months, with a 6-month survival rate of 40.5 %. A multivariate Cox proportional hazards regression analysis revealed that mGPS >2 was the only independent prognostic factor for bypass surgery. Patients with an mGPS of 2 had an MST of 1.7 months, and they had a significantly worse prognosis than mGPS 0-1 patients with an MST of 6.3 months. CONCLUSIONS: The mGPS is useful for predicting survival after surgical decompression due to gastrointestinal obstruction in patients with unresectable pancreatic and biliary cancers. Patients with a poor mGPS may not be indicated for palliative bypass surgery.
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