Medline: 8344850

International Journal of Radiation Oncology, Biology, Physics 26(5): 809-816, 1993.

Combined radiotherapy and chemotherapy in the management of local-regionally advanced vulvar cancer.

Koh WJ, Wallace HJ, Greer BE, et al.

Abstract:

Purpose:
To determine, in a retrospective single institutional study, the role of concurrent radiotherapy and chemotherapy in the treatment of local-regionally advanced vulvar cancer.

Methods:
AND MATERIALS: From 1984 to 1991, 20 patients with locally extensive primary or recurrent carcinoma of the vulva were treated with initial combined radiotherapy and chemotherapy. Seven patients had Federation Internationale de Gynecologie et d'Obstretrique Stage III disease, 10 had Stage IV disease, and three were treated for recurrent disease. None of these patients were considered candidates for primary radical vulvectomy and groin node dissection. Median radiation doses to regions of microscopic disease and gross tumor were 40 Gy (range 30-54 Gy) and 54 Gy (34-70.4 Gy), respectively. All patients received 2 or 3 cycles of 5-Fluorouracil concurrently with radiotherapy. In addition, five patients received Cis-platinum, and one Mitomycin-C. Median at-risk follow-up interval was 37 months.

Results:
Ten patients had complete resolution of tumor to initial chemoradiotherapy, and eight of these have remained free of tumor relapse. Eight other patients had partial responses, with tumor bulk reduced by > 50%, while the remaining two patients had local-regionally progressive disease. Six of the patients with partial responses had residual tumor successfully resected, although four subsequently recurred. For the entire group of 20 patients, the actuarial 3- and 5-year local control rates were 48% each, and the corresponding disease-specific survival rates were 59% and 49%. There was a suggestion that better local control was obtained in patients who received gross tumor radiation doses > or = 50 Gy. Skin reaction was the major acute toxicity and responded well to conservative management. Long-term sequalae were limited to skin and subcutaneous atrophy.

Conclusion:
These results indicate that initial combined radiotherapy and chemotherapy is effective in the management of advanced vulvar cancer. (5 Refs)


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