PURPOSE: The relationship between neo-adjuvant chemotherapy prior to hepatectomy in patients with resectable colorectal liver metastases and post-operative morbidity still has to be clarified. METHODS: Data from 242 patients undergoing hepatectomy for colorectal liver metastases, judged resectable at first observation, were reviewed and their clinical outcome was related to neo-adjuvant chemotherapy (125 patients). Selection biases were outlined and properly handled by means of propensity score analysis. RESULTS: Post-operative death was 1.2% and morbidity 40.9%. Pre-operative chemotherapy was only apparently related to higher morbidity (P = 0.021): multivariate analysis identified extension of hepatectomy and intra-operative blood loss as independent prognostic variables (P < 0.05). Patients receiving and not receiving neo-adjuvant chemotherapy were significantly different for several covariates, including extension of hepatectomy (P = 0.049). After propensity score adjustment, 94 patients were identified as having similar covariate distribution (standardized differences <|0.1|) except for neo-adjuvant treatment (47 patients for each group). In this matched sample, mortality was similar and post-operative complications were only slightly higher (hazard ratio = 1.38) in treated patients. A significantly higher need for fluid replacement was only observed in patients receiving neo-adjuvant chemotherapy (P = 0.038). CONCLUSIONS: Neo-adjuvant chemotherapy showed a limited role in determining post-operative morbidity after hepatic resection and did not modify mortality.
PURPOSE: The relationship between neo-adjuvant chemotherapy prior to hepatectomy in patients with resectable colorectal liver metastases and post-operative morbidity still has to be clarified. METHODS: Data from 242 patients undergoing hepatectomy for colorectal liver metastases, judged resectable at first observation, were reviewed and their clinical outcome was related to neo-adjuvant chemotherapy (125 patients). Selection biases were outlined and properly handled by means of propensity score analysis. RESULTS: Post-operative death was 1.2% and morbidity 40.9%. Pre-operative chemotherapy was only apparently related to higher morbidity (P = 0.021): multivariate analysis identified extension of hepatectomy and intra-operative blood loss as independent prognostic variables (P < 0.05). Patients receiving and not receiving neo-adjuvant chemotherapy were significantly different for several covariates, including extension of hepatectomy (P = 0.049). After propensity score adjustment, 94 patients were identified as having similar covariate distribution (standardized differences <|0.1|) except for neo-adjuvant treatment (47 patients for each group). In this matched sample, mortality was similar and post-operative complications were only slightly higher (hazard ratio = 1.38) in treated patients. A significantly higher need for fluid replacement was only observed in patients receiving neo-adjuvant chemotherapy (P = 0.038). CONCLUSIONS: Neo-adjuvant chemotherapy showed a limited role in determining post-operative morbidity after hepatic resection and did not modify mortality.
Authors: Bernard Nordlinger; Jean-Nicolas Vauthey; Graeme Poston; Stephane Benoist; Philippe Rougier; Eric Van Cutsem Journal: Clin Colorectal Cancer Date: 2010-10 Impact factor: 4.481
Authors: David A Kooby; Jennifer Stockman; Leah Ben-Porat; Mithat Gonen; William R Jarnagin; Ronald P Dematteo; Scott Tuorto; David Wuest; Leslie H Blumgart; Yuman Fong Journal: Ann Surg Date: 2003-06 Impact factor: 12.969