T1N0 성문암의 방사선치료관련 예후 인자 분석

• 영문명: A Retrospective Analysis of Treatment-Related Prognostic Factors for Local Recurrence after Primary Radiation Therapy for Patients with Primary T1N0 Glottic Cancer
• 발행기관: 대한두경부종양학회
• 저자명: 김수산(Su Ssan Kim) 김상윤(Sang Yoon Kim) 남순열(Soon Yuhl Nam) 최승호(Seung Ho Choi) 조경자(Kyung Ja Cho) 김종훈(Jong Hoon Kim) 안승도(Seung Do Ahn) 신성수(Seong Soo Shin) 송시열(Si yeol Song) 최은경(Eun Kyung Choi) 이상욱(Sang wook Lee)
• 간행물 정보: 『대한두경부종양학회지』제19권 제1호, 34~40쪽, 전체 7쪽
• 주제분류: 의약학 > 종양학
• 파일형태: PDF
• 발행일자: 2003.05.30

영문 초록

Objective: To analyze the treatment-related parameters after the radiotherapy of T1N0 squamous cell carcinoma of the glottic larynx. Materials and Methods: Between October 1989 and August 2000, 54 patients with histologically proven T1N0 squamous cell carcinoma of the glottic larynx who received definitive radiation therapy in Department of Radiation Oncology, Asan Medical Center were analyzed. They were all males with age ranged from 31 to 80 years (median 61 years). 1997 AJCC stages were 31 T1a, 23 T1b. Patients were treated with 4-MV X-rays with a parallel-opposed two-field technique. Ten patients received 66.0-68.4Gy at 1.2Gy per fraction twice daily, 21 patients received 64.8-66.6Gy at 1.8Gy per fraction once daily, and 23 patients received 66.0Gy at 2.0Gy per fraction once daily. Follow-up period was 16-119 months (median 56 months). Results: 5-year overall survival and local control rates for patients with T1 lesions were 87.0% and 88.5%, respectively. 5-year local control with larynx preservation rate was 90.5%. Host and tumor-related prognostic factors including age, stage, anterior commissure involvement and tumor bulk proved not to be significant. Only shorter overall treatment time among treatment-related factors had correlation with imporved local control. Conclusion: Comparable high local control rate with organ preservation was achieved with primary radiation therapy and salvage surgery. Shortening of overall treatment time is related to improved local control rate. To determine the optimal fractionation scheme, randomized trial is mandatory.

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키워드

조기 성문암 방사선치료 예후인자 Early glottic cancer Radiation therapy Prognostic factor