V E de Meijer1, B T Kalish, M Puder, J N M Ijzermans. 1. Department of Surgery and Vascular Biology Program, Children's Hospital Boston and Harvard Medical School, Boston, Massachusetts, USA.
Abstract
BACKGROUND: The risk of major hepatic resection in patients with hepatic steatosis remains controversial. A meta-analysis was performed to establish the best estimate of the impact of steatosis on patient outcome following major hepatic surgery. METHODS: A systematic search was performed following Meta-analysis Of Observational Studies in Epidemiology (MOOSE) guidelines. Risk ratios (RRs) for complication and mortality rates were calculated for patients with no, less than 30 per cent and at least 30 per cent steatosis, and a meta-analysis was carried out. RESULTS: Of six observational studies identified, four including a total of 1000 patients were subjected to meta-analysis; two others were tabulated separately. Compared with patients without steatosis, those with less than 30 per cent and at least 30 per cent steatosis had a significantly increased risk of postoperative complications, with a RR of 1.53 (95 per cent confidence interval (c.i.) 1.27 to 1.85) and 2.01 (1.66 to 2.44) respectively. Patients with at least 30 per cent steatosis had an increased risk of postoperative death (RR 2.79, 95 per cent c.i. 1.19 to 6.51). CONCLUSION: Patients with steatosis had an up to twofold increased risk of postoperative complications, and those with excessive steatosis had an almost threefold increased risk of death. Copyright 2010 British Journal of Surgery Society Ltd. Published by John Wiley & Sons, Ltd.
BACKGROUND: The risk of major hepatic resection in patients with hepatic steatosis remains controversial. A meta-analysis was performed to establish the best estimate of the impact of steatosis on patient outcome following major hepatic surgery. METHODS: A systematic search was performed following Meta-analysis Of Observational Studies in Epidemiology (MOOSE) guidelines. Risk ratios (RRs) for complication and mortality rates were calculated for patients with no, less than 30 per cent and at least 30 per cent steatosis, and a meta-analysis was carried out. RESULTS: Of six observational studies identified, four including a total of 1000 patients were subjected to meta-analysis; two others were tabulated separately. Compared with patients without steatosis, those with less than 30 per cent and at least 30 per cent steatosis had a significantly increased risk of postoperative complications, with a RR of 1.53 (95 per cent confidence interval (c.i.) 1.27 to 1.85) and 2.01 (1.66 to 2.44) respectively. Patients with at least 30 per cent steatosis had an increased risk of postoperative death (RR 2.79, 95 per cent c.i. 1.19 to 6.51). CONCLUSION:Patients with steatosis had an up to twofold increased risk of postoperative complications, and those with excessive steatosis had an almost threefold increased risk of death. Copyright 2010 British Journal of Surgery Society Ltd. Published by John Wiley & Sons, Ltd.
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