Home HOME Neoplasma 2004 Neoplasma Vol.51, p.59-63, 2004

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Neoplasma Vol.51, p.59-63, 2004

Title: Perioperative fractionated high-dose rate brachytherapy in the treatment of soft tissue sarcomas

Abstract: The purpose of the study was to investigate the viability of perioperative fractionated high dose rate brachytherapy (HDR BT) for primary and reccurent soft tissue sarcomas (STS). From February 1998 through June 2002, 21 adult patients, 11 females and 10 males with either low grade or high grade soft tissue sarcomas were treated by perioperative HDR BT. Surgical margin was negative in 10 cases, close in 4 and positive in 4 in cases. In 3 cases it was not described. BT was used as a part of primary treatment in 10 cases and for the treament of reccurent tumor in 11 cases. The localisation of the tumor was the extremity in 16 patients and the trunk in 5 patients. Ten patients were treated with HDR BT alone (total mean dose 40 Gy) and 11 were treated with combination of external beam radiotherapy (EBRT) (40--50 Gy) and brachytherapy (total mean dose 24 Gy). Hyperfractionation 2.4--3 Gy twice daily at 10 mm from the source was used for BT. Follow-up periods were between 7--48 months (median: 20 months). Local control in patients treated pro primary STS was 100%.The pulmonal metastases were a cause of death in one case, one patient was alive with dissemination and one patient was disease free after salvage surgery and chemotherapy for lung metastases. Local control was achieved only in 3 of 11 patients treated for reccurent tumor (27%). Six patiens were disease free after salvage surgery, 2 patients died of disease progression, one patient died of toxicity of chemotherapy without evidence of disease and 2 patients are alive with distant metastases. Local control was achieved in 5 of 11 (45%) patients with positive, close or not stated surgical margin and in 5 of 10 (50%) patients with negative margin. Local control was 100% in patients treated by EBRT + BT, but only 20% in patients treated by BT alone. No infection or delayed wound healing has occurred after BT. Soft tissue necrosis was seen in 4 cases, subcutanous fistula in one case and peripheral nerve palsy in one case. Despite small number of patients and short follow up our study suggest that perioperative HDR BT is easy and promissing when used as a part of primary treatment for STS. The treatment results for recurrence are poor and in a lot of cases radical surgical approach should have been considered for the salvage.

Keywords: soft tissue sarcomas, high dose rate brachytherapy, local control, complications
Year: 2004, Volume: 51, Issue: Page From: 59, Page To: 63

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