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  • Title: Results of a single-center experience with resection and ablation for sarcoma metastatic to the liver.
    Author: Pawlik TM, Vauthey JN, Abdalla EK, Pollock RE, Ellis LM, Curley SA.
    Journal: Arch Surg; 2006 Jun; 141(6):537-43; discussion 543-4. PubMed ID: 16785353.
    Abstract:
    HYPOTHESIS: A subset of patients with sarcoma liver metastasis may benefit from hepatic resection and/or ablation. DESIGN: Retrospective review of prospectively collected cancer center database records. PATIENTS AND METHODS: Sixty-six patients who underwent hepatic resection and/or open radiofrequency ablation of metastatic sarcoma between July 1, 1996, and April 30, 2005, were identified from the database. Clinicopathologic, operative, recurrence, and long-term survival data were analyzed. RESULTS: The primary sarcoma site was the abdomen or retroperitoneum (n = 22), stomach (n = 18), small or large bowel (n = 17), pelvis (n = 4), uterus (n = 3), or other (n = 2). Tumor pathologic types included gastrointestinal stromal tumor (n = 36), leiomyosarcoma (n = 18), and sarcoma not otherwise classified (n = 12). Thirty-five patients underwent resection, 18 underwent resection plus radiofrequency ablation, and 13 underwent radiofrequency ablation only. With a median follow-up of 35.8 months, 44 patients (66.7%) had recurrence (intrahepatic only, n = 16; extrahepatic only, n = 11; both, n = 17). Treatment with radiofrequency ablation (either alone or combined with resection) (P = .002) and lack of adjuvant chemotherapy (P = .01) predicted shorter disease-free survival. The 1-, 3-, and 5-year overall survival rates were 91.2%, 65.4%, and 27.1%, respectively. Patients with gastrointestinal stromal tumor who were treated with adjuvant imatinib mesylate had the longest median survival (not reached) (P = .003). CONCLUSIONS: Long-term survival can be achieved following surgical treatment of sarcoma liver metastasis, especially in patients with gastrointestinal stromal tumor. Patients with sarcoma liver metastasis should be evaluated by a multidisciplinary team, as recurrence is common and adjuvant therapy may prolong survival.
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