Naruhiko Ikoma1, Christina L Roland1, Keila E Torres1, Yi-Ju Chiang1, Wei-Lien Wang2, Neeta Somaiah3, Gary N Mann1, Kelly K Hunt1, Janice N Cormier1, Barry W Feig4. 1. Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. 2. Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. 3. Department of Sarcoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. 4. Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. bwfeig@mdanderson.org.
Abstract
PURPOSE: Current evidence regarding salvage resection for recurrent retroperitoneal (RP) sarcomas generally lacks detailed histology-specific analyses, but the aggressiveness of these tumors varies widely by histology. We investigated associations between timing and extent of salvage surgery and survival outcomes in patients with recurrent RP well-differentiated liposarcoma (WDLPS). METHODS: The University of Texas MD Anderson Cancer Center Surgical Oncology sarcoma database was reviewed to identify patients with RP WDLPS who underwent surgical resection for first recurrent disease (salvage surgery) in 1995-2015. Medical records were retrospectively reviewed to identify factors associated with overall survival and disease-free survival. RESULTS: We identified 52 patients who underwent salvage surgery for RP WDLPS for first local recurrence; 28 (54%) underwent salvage surgery within 6 months after recurrence. Concomitant organ resections were performed in 32 (62%) patients, 4 (13%) of whom had pathologic invasion of resected organs. After R0/R1 resections (n = 45), 38 (84%) experienced a second local recurrence. Multivariable analyses revealed that organ invasion at the primary surgery [hazard ratio (HR) 13.08; p = 0.005] and disease-free interval < 1 year (HR 3.64; p = 0.044) were associated with shorter overall survival. Recurrence-to-salvage interval < 6 months was associated with shorter disease-free survival (HR 2.18; p = 0.025). Concomitant organ resection was associated with a longer hospital stay: ≥ 14 days (odds ratio 21.58; p = 0.007). CONCLUSIONS: Early salvage surgery may not always be the best approach for recurrent RP WDLPS patients. Because organ invasion is rare among recurrent RP WDLPS patients and concomitant organ resection is associated with a longer hospital stay, preservation of uninvolved organs should be considered.
PURPOSE: Current evidence regarding salvage resection for recurrent retroperitoneal (RP) sarcomas generally lacks detailed histology-specific analyses, but the aggressiveness of these tumors varies widely by histology. We investigated associations between timing and extent of salvage surgery and survival outcomes in patients with recurrent RP well-differentiated liposarcoma (WDLPS). METHODS: The University of Texas MD Anderson Cancer Center Surgical Oncology sarcoma database was reviewed to identify patients with RP WDLPS who underwent surgical resection for first recurrent disease (salvage surgery) in 1995-2015. Medical records were retrospectively reviewed to identify factors associated with overall survival and disease-free survival. RESULTS: We identified 52 patients who underwent salvage surgery for RP WDLPS for first local recurrence; 28 (54%) underwent salvage surgery within 6 months after recurrence. Concomitant organ resections were performed in 32 (62%) patients, 4 (13%) of whom had pathologic invasion of resected organs. After R0/R1 resections (n = 45), 38 (84%) experienced a second local recurrence. Multivariable analyses revealed that organ invasion at the primary surgery [hazard ratio (HR) 13.08; p = 0.005] and disease-free interval < 1 year (HR 3.64; p = 0.044) were associated with shorter overall survival. Recurrence-to-salvage interval < 6 months was associated with shorter disease-free survival (HR 2.18; p = 0.025). Concomitant organ resection was associated with a longer hospital stay: ≥ 14 days (odds ratio 21.58; p = 0.007). CONCLUSIONS: Early salvage surgery may not always be the best approach for recurrent RP WDLPS patients. Because organ invasion is rare among recurrent RP WDLPS patients and concomitant organ resection is associated with a longer hospital stay, preservation of uninvolved organs should be considered.
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