Survival benefit and prognostic factors useful for patient selection have not been previously analyzed for patients with recurrent pulmonary metastases from soft-tissue sarcomas. Twenty-nine patients in our study had two or more resections of pulmonary metastases from 1976 to 1983. There were no operative deaths and three complications for 40 operations (7.5%). Factors predictive of increased survival following the second resection of pulmonary metastases were resectability and a disease-free interval of greater than six months from the first thoracotomy to the second recurrence in the lung. The tumor doubling time of the first recurrence and the presence of three or fewer nodules on full-lung tomography before the first thoracotomy, which were predictors of survival following initial resection, also predicted survival following subsequent resections. Overall median survival following the second resection was 14.5 months (22% overall three-year survival). The postresection actuarial survival curves for patients undergoing 1, 2, or 3 or more resections were not significantly different. Our findings demonstrate that patients undergoing repeated resections of pulmonary metastases from soft-tissue sarcomas can achieve prolonged survival.
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