Surgical Treatment of Stage IIIA Non Small Cell Lung Cancer(NSCLC)

제 IIIA기 비소세포 폐암의 수술 성적

  • 정경영 (연세대학교 의과대학 흉부외과학교실) ;
  • 홍기표 (연세대학교 의과대학 흉부외과학교실) ;
  • 김창수 (연세대학교 의과대학 흉부외과학교실) ;
  • 김길동 (연세대학교 의과대학 흉부외과학교실) ;
  • 김주항 (연세대학교 의과대학, 연세암센타, 내과학교실) ;
  • 신동환 (연세대학교 의과대학 병리학교실)
  • Published : 1999.02.01

Abstract

Background: Surgery has been considered the most effective and standard treatment modality in non-small cell lung cancer(NSCLC). However in stage IIIA lung cancer, the role of surgery is still controversial. To evaluate the role of surgery for stage IIIA NSCLC, we investigated the survival after surgery and the prognostic factors. Material and Method: We evaluated 158 consecutive cases of stage IIIA NSCLC patients operated on between 1990 and 1996. There were 130 male patients and 28 female patients, and the mean age was 58.5 years. All patients except one underwent lung resection beyond lobectomy and extended mediastinal dissection. Postoperative adjuvant therapy were undertaken in 145(94.8%) patients. All patients(153) were followed and the mean follow-up period was 21.4months. Result: Twenty nine cases of the postoperative complications developed in 25 patients (15.8%). There were 5 operative mortality cases(3.2%) and the main cause of death was acute respiratory distress syndrome (ARDS). Local or distant recurrences developed in 84 patients(54.9%). The 5-year survival of 153 patients was 29.6% and the median survival time was 18.0 months. The 5-year survival of non N2 disease group(36.8%) was better than that of N2 disease group(26.6%)(p=0.35) and the 5-year survival of squamous cell carcinoma (38.1%) was better than that of adenocarcinoma(25.7%)(p=0.39) however there were no significant differences. Regarding the postoperative adjuvant therapy, in combined therapy group(84 patients), radiotherapy group(37 patients) and chemotherapy group(24 patients), the 5-year survival were 31.3%, 32.4%, and 14.6% respectively. There was no difference of survival between radiotherapy and combined therapy group(p=0.31), however the survival of the combined therapy group was better than the chemotherapy group(p=0.005). The survival of the complete resection group(31.9%) was better than the incomplete resection group(16.6%) however there was no significant difference(p=0.19). Conclusion: These observations indicate that the good 5-year survival(29.6%) in patients with stage IIIA NSCLC result from the agressive surgical treatment including extensive mediastinal nodes dissection.

배경: 비소세포폐암의 치료에서 외과적 치료는 가장 효과적인 치료법으로 알려져있으나 IIIA 병기 폐암의 경우에는 논란이 많다. 저자들은 IIIA 병기 비소세포폐암에서 외과적 치료의 역할을 알아보고자 수술 후 생존률과 예후인자를 조사하였다. 대상 및 방법: 1990년부터 1996년까지 연세의료원에서 폐암 환자 중 수술 후 병리 소견상 IIIA기 원발성 폐암으로 진단된 158명의 환자를 대상으로 하였다. 환자의 성별은 남자가 130명, 여자가 28명이었고 평균 나이는 58.3세이었다. 수술은 1예를 제외한 전 예에서 폐엽절제술 이상의 폐절제술을 시행하였으며 종격동림프절의 광범위 완전 박리술을 시행하였다. 수술 후 145명(94.8%)의 환자에서 수술 후 보조 요법을 시행하였다. 대상 환자(153명) 추적은 100%에서 가능하였으며 평균 추적 기간은 21.4개월이었다. 결과:수술 후 합병증은 총 25명(15.8%)의 환자에서 29예가 발생하였다. 5명(3.2%)의 수술사망이 있었으며 급성호흡부전증후군이 가장 많았다. 재발은 총 84명(54.9%)의 환자에서 발생하였다. 전체 158명의 환자 중에서 5명의 수술사망환자를 제외한 153명 환자의 5년-생존률은 29.6%이었으며 중간생존기간은 18.0개월이었다. N2 림프절 전이군의 5년 생존률은 26.6%, 비N2 림프절 전이군의 생존률은 36.8%로 비N2 림프절 전이군의 생존률이 높았고(p=0.35), 병리조직유형별 생존률은 편평상피세포암과 선암의 5년-생존률이 각각 38.1%, 25.7%로 편평상피세포암이 높았으나(p=0.39) 유의한 차이는 없었다. 수술 후 보조 치료에 따른 생존률은 약물치료와 방사선치료를 병행한 복합치료 환자(84명)와 방사선치료만 시행한 환자(37명), 그리고 약물치료만 시행한 환자(24명)의 5년-생존률이 각각 31.3%, 32.4%, 14.6%로서 복합치료군의 치료 성적이 가장 양호하였으며, 각 집단간의 비교에서는 방사선치료군과 복합치료군과의 생존률은 유의한 차이가 없었으나(p=0.31), 약물치료군에 비하여는 복합치료군이 유의하게 생존률이 높았다(p=0.005). 수술 후 병리 결과상 완전 절제 該별\ulcorner불완전 절제술군의 5년-생존률은 각각 31.9%, 16.6%로 완전 절제술시 높았으나 유의한 차이는 없었다(P=0.19). 결론:제 IIIA 병기 비소세포폐암으로 외과적 절제 수술을 시행한 환자 157명의 수술 후 5년-생존률은 29.6%로서 양호하였으며는 범위한 종격동림프절 박리를 원칙으로 한 적극적인 외과 치료를 시행함으로써 생존률을 향상시킨 결과라고 생각되었다.

Keywords

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