S Aune1, A Trippestad. 1. Department of Surgery, Haukeland University Hospital, Bergen, Norway.
Abstract
OBJECTIVES: To investigate the operative mortality and long-term survival of patients with lower limb embolism or acute thrombosis. DESIGN: A retrospective survival analysis. MATERIALS: Eighty patients with acute thrombosis treated by bypass and 192 patients with embolism treated by embolectomy during the years from 1985 to 1996 were studied. METHODS: The observed survival rates were calculated with the product limit method. The expected survival rates were estimated from death-rate tables. The standard mortality rate was compared over a 5-year follow-up. RESULTS: The patients treated for embolism had an operative mortality of 17% and a 5-year survival rate of 17%, which was significantly lower than the expected rate of 62%. Those treated for acute thrombosis had an operative mortality of 14% and a 5-year survival rate of 44%. This was significantly higher than for the embolism group, but significantly lower than the expected rate of 74%. Both groups had a standard mortality rate of 2.2 at 5 years. CONCLUSION: Patients with acute ischaemia have a poor short-term and long-term prognosis. The patients treated for embolism are older and they have a shorter life expectancy than those treated for acute thrombosis. The standard mortality rate of the two groups appears similar.
OBJECTIVES: To investigate the operative mortality and long-term survival of patients with lower limb embolism or acute thrombosis. DESIGN: A retrospective survival analysis. MATERIALS: Eighty patients with acute thrombosis treated by bypass and 192 patients with embolism treated by embolectomy during the years from 1985 to 1996 were studied. METHODS: The observed survival rates were calculated with the product limit method. The expected survival rates were estimated from death-rate tables. The standard mortality rate was compared over a 5-year follow-up. RESULTS: The patients treated for embolism had an operative mortality of 17% and a 5-year survival rate of 17%, which was significantly lower than the expected rate of 62%. Those treated for acute thrombosis had an operative mortality of 14% and a 5-year survival rate of 44%. This was significantly higher than for the embolism group, but significantly lower than the expected rate of 74%. Both groups had a standard mortality rate of 2.2 at 5 years. CONCLUSION:Patients with acute ischaemia have a poor short-term and long-term prognosis. The patients treated for embolism are older and they have a shorter life expectancy than those treated for acute thrombosis. The standard mortality rate of the two groups appears similar.
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