LOW-DOSE TUMOR-NECROSIS-FACTOR-ALPHA AND MELPHALAN IN HYPERTHERMIC ISOLATED LIMB PERFUSION

Nine patients with soft tissue tumours of the lower limb not amenable to treatment other than by isolated limb perfusion or amputation under went hyperthermic isolated limb perfusion at the level of the superfic ial femoral vessels, using a combination of recombinant tumour necrosi s factor (TNF) alpha and melphalan. In seven patients with superficial tumours, necrosis and sloughing was apparent within 48 h of perfusion . All patients experienced a complete tumour response. There were no s ystemic side-effects associated with the use of TNF-alpha although loc al side-effects, particularly oedema, were pronounced. Three patients ultimately required amputation because of the large soft tissue defect s that resulted from necrosis of the tumour and overlying skin.