title: Surgical treatment of primary lung cancer in patients less than 40 years of age.
abstract: OBJECTIVE
  The major purpose of this study was to determine whether the survival rate in young lung cancer patients after surgical treatment differs from that in older patients. An analysis was performed for all patients with bronchogenic carcinoma who underwent surgery at Mie University Hospital from 1965 to 1990.
  
  
  RESULTS
  Of 803 patients, 24 (2.99%) were 33 to 39 years old. At the time of surgery, the disease was diagnosed as stage I in seven patients (29%), stage II in four (17%), stage IIIa in seven (29%), stage IIIb in two (8%), and stage IV in four (17%), while 46.3% of the patients older than 40 years of age had either stage IIIa, IIIb, or IV disease. All of the 24 patients less than 40 years of age underwent thoracotomy: curative resection in 14 cases, palliative resection in sex, and probe-thoracotomy in four. The 5-year survival rate for all stages of disease was 31.4% in these 24 patients, and 41.9% in 603 patients greater than 40 years of age. The 5-year survival rate for stage I disease was 35.7% in the seven younger patients and 78.0% in the 207 older patients; for stage II, it was 25.5% in the four younger patients and 40.6% in the 98 older patients; for stage III, it was 33.3% in the nine younger patients and 15.6% in the 250 older patients; and for stage IV, it was 25% in the four younger patients and 6.6% in the 48 older patients. There were no significant differences in survival rate between the two age groups for all patients or for those with each stage of disease.
  
  
  CONCLUSIONS
  Although younger patients tended to have more advanced disease, long-term survival in these patients did not differ from that of older patients.
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, Mie University School of Medicine, Tsu, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Shimono
authors.forename: T
authors.initials: T
authors.lastname: Hayashi
authors.forename: M
authors.initials: M
authors.lastname: Kimura
authors.forename: I
authors.initials: I
authors.lastname: Yada
authors.forename: S
authors.initials: S
authors.lastname: Namikawa
authors.forename: H
authors.initials: H
authors.lastname: Yuasa
authors.forename: M
authors.initials: M
authors.lastname: Kusagawa
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D002283:Carcinoma, Bronchogenic / Q000401:mortality / Q000473:pathology / Q000601:surgery* / Q000628:therapy; D003131:Combined Modality Therapy; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000401:mortality / Q000473:pathology / Q000601:surgery* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D012189:Retrospective Studies; D015996:Survival Rate