Multifocal soft tissue sarcoma: Limb salvage following hyperthermic isolated limb perfusion with high‐dose tumor necrosis factor and melphalan

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Abstract
The prognosis for recurrent multifocal limb soft tissue sarcoma (STS) is dismal due to systemic spread. However, many of these patients undergo amputation due to ineffective local control. The purpose of the present study was to determine whether isolated limb perfusion (ILP) with tumor necrosis factor (TNF) and melphalan permits limb salvage and palliation for such patients. Of 53 STS patients treated with hyperthermic ILP with TNF (3-4 mg) and melphalan (1-1.5 mg/kg), 13 (25%) had multifocal STS and were candidates for amputation. The overall response rate was 92% (12/13) with 38% complete response and 54% partial response. Two patients died during the early postoperative period. Limb salvage was achieved in 85% of patients. One patient (8%) had only stable disease and underwent amputation. Local recurrence occurred in 38% but did not result in amputation. Although the number of patients in this study is too small to allow definitive conclusions, it seems that ILP/TNF offer limb salvage and palliation for recurrent multifocal STS patients.