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  • Title: Factors associated with actual long-term survival following soft tissue sarcoma pulmonary metastasectomy.
    Author: Smith R, Pak Y, Kraybill W, Kane JM.
    Journal: Eur J Surg Oncol; 2009 Apr; 35(4):356-61. PubMed ID: 18294807.
    Abstract:
    AIMS: To identify clinicopathologic and treatment variables associated with long-term overall survival (OS) in soft tissue sarcoma (STS) patients with lung metastases undergoing pulmonary metastasectomy (PM). METHODS: Retrospective review of 94 STS PM patients with an actual follow-up > or = 5 years. Data were collected on demographics, tumor features, treatment, and outcome. RESULTS: Most primary tumors were intermediate/high grade and the common histopathologies were evenly distributed. Half of the primary tumors were located on the extremities. The mean disease-free interval (DFI) from time of original diagnosis until metastases was 25 months (median 15 months). Eighteen patients had synchronous metastatic disease. Bilateral pulmonary metastases and >1 metastasis were common. The median number of metastases resected was 2.5. Thirty-four patients had extrapulmonary tumor at the time of PM; all extrapulmonary disease was resected. Negative margin resection (R0) PM was performed in 74 patients. Actual 5-year disease-free survival (DFS) and OS for all patients were 5% and 15%, respectively. For the R0 group, actual 5-year DFS and OS were 7% and 18%, respectively. R0 resection and a prolonged DFI were associated with improved OS. Patient characteristics, tumor features, local recurrence, and adjuvant therapy did not affect OS. CONCLUSIONS: Less than 20% of STS PM patients will survive 5 years. Complete resection and DFI are the most predictive factors for prolonged survival.
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