Radiation Oncology Journal

The Korean Society for Radiation Oncology (대한방사선종양학회)
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Treatments Results and Prognostic Factors in Locally Advanced Hypopharyngeal Cancer

국소 진행된 하인두암의 치료 결과와 예후 인자 분석

  • Yoon, Mee-Sun (Departments of Radiation Oncology, Chonnam National University Medical School) ;
  • Ahn, Sung-Ja (Departments of Radiation Oncology, Chonnam National University Medical School) ;
  • Nam, Taek-Keun (Departments of Radiation Oncology, Chonnam National University Medical School) ;
  • Song, Ju-Young (Departments of Radiation Oncology, Chonnam National University Medical School) ;
  • Nah, Byung-Sik (Departments of Radiation Oncology, Chonnam National University Medical School) ;
  • Lim, Sang-Cheol (Departments of Otolaryngology and Head and Neck Surgery, Chonnam National University Medical School) ;
  • Lee, Joon-Kyoo (Departments of Otolaryngology and Head and Neck Surgery, Chonnam National University Medical School) ;
  • Chung, Woong-Ki (Departments of Radiation Oncology, Chonnam National University Medical School)
  • 윤미선 (전남대학교 의과대학 방사선종양학교실) ;
  • 안성자 (전남대학교 의과대학 방사선종양학교실) ;
  • 남택근 (전남대학교 의과대학 방사선종양학교실) ;
  • 송주영 (전남대학교 의과대학 방사선종양학교실) ;
  • 나병식 (전남대학교 의과대학 방사선종양학교실) ;
  • 임상철 (전남대학교 의과대학 이비인후과학교실) ;
  • 이준규 (전남대학교 의과대학 이비인후과학교실) ;
  • 정웅기 (전남대학교 의과대학 방사선종양학교실)
  • Published : 2007.09.30
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Abstract

Purpose: The purpose of this study is to present the treatment results and to identify possible prognostic indicators in patients with locally advanced hypopharyngeal carcinoma. Materials and Methods: Between October 1985 to December 2000, 90 patients who had locally advanced stage IV hypopharyngeal carcinoma were studied retrospectively. Twelve patients were treated with radiotherapy alone, 65 patients were treated with a combination of chemotherapy and radiotherapy, and 13 patients were treated with surgery and postoperative radiotherapy with or without neoadjuvant chemotherapy. Total radiation dose ranged from 59.0 to 88.2 Gy (median 70 Gy) for radiotherpay alone. Most patients had ciplatin and 5-fluorouracil, and others had cisplatin and pepleomycin or vincristin. Median follow-up period was 15 months. Kaplan-Meier method was used for survival rate and Cox proportional hazard model for multivariate analysis of prognostic factors. Results: Overall 3-and 5-year survival rates were 27% and 17%, respectively. The 2-year locoregional control rates were 33% for radiotherapy alone, 32% for combined chemotherapy and radiotherapy, and 81 % for combined surgery and radiotherapy (p=0.006). The prognostic factors affecting overall survival were T stage, concurrent chemoradiation and treatment response. Overall 3-and 5-year laryngeal preservation rates in combined chemotherapy and radiotherapy were 26% and 22%, respectively. Of these, the 5-year laryngeal preservation rates were 52% for concurrent chemoradiation group (n=11), and 16% for neoadjuvant chemotherapy and radiotherapy (n=54, p=0.012). Conclusion: Surgery and postoperative radiotherapy showed better results than radiotherapy alone or with chemotherapy. Radiotherapy combined with concurrent chemotherapy is an effective modality to achieve organ preservation in locally advanced hypopharyngeal cancer. Further prospective randomized studies will be required.

목적: 국소 진행된 하인두암에서 치료 결과 및 생존율에 영향을 미치는 예후인자를 알아보고자 하였다. 대상 및 방법: 1985년 10월부터 2000년 12월까지 국소 진행된 하인두암 IV기로 근치적 치료를 받은 90명을 대상으로 후향적 분석을 실시하였다. 방사선 단독치료는 12명, 항암화학요법과 병용치료는 65명, 그리고 수술과 수술 후 방사선치료 시행은 13명이었다. 방사선 단독군의 경우 총 방사선 선량은 $59.0{\sim}88.2$ Gy (중앙값 70 Gy)이었다. 항암화학요법은 대부분 5-FU와 cisplatin을 병용하였고, 일부 환자에서는 clsplatin을 기본으로 pepleomycin 또는 vincristin 등을 병용 투여하였다. 추적관찰기간의 중앙값은 15개월이었다. 통계적 방법으로 생존율의 산출은 Kaplan-Meier 법을, 두군의 생존율간의 차이는 Log-rank test를, 그리고 다변량분석에는 Cox prportional hazard model을 각각 이용하였다. 결과: 전체 90명 환자의 3년 및 5년 생존율은 각각 26%, 17%였다. 2년 국소종양제어율은 방사선치료 단독군의 경우 33%, 방사선치료와 항암화학요법을 병용한 군은 32%, 수술 후 방사선치료군 81%로 통계적으로 유의한 차이를 보였다(p=0.006) 생존율에 영향을 미치는 예후인자에 대한 다요인 분석에서 T병기, 동시적 항암화학요법의 유무 및 국소 치료 후 완전 관해 여부가 통계적으로 유의하였다. 방사선치료와 항암화학요법을 병용한 군의 3년 및 5년 후두 보존율은 각각 26%, 22%였다. 이중 동시적 항암항암화학방사선요법이 시행된 11명 환자의 5년 후두 보존율은 52%로 선행화학요법이 시행된 54명의 16%에 비해 통계적으로 유의한 차이를 보였다(p=0.012). 결론: 국소 진행된 하인두암에서 근치적 수술과 방사선치료 병용요법이 방사선치료 단독요법이나 항암화학요법 병용방법에 비하여 더 좋은 결과를 보여주었다. 한편 방사선치료와 동시적 항암화학요법은 후두를 보존할 수 있는 유용한 치료법이 될 수 있음을 시사하였다. 향후 더 많은 환자를 대상으로 전향적 무작위 임상연구가 필요할 것으로 생각된다.

Keywords

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