title: Pulmonary metastases from colorectal cancer: 25 years of experience.
abstract: OBJECTIVE
  To examine the experience of pulmonary resections for colorectal metastases at the McGill University Health Centre.
  
  
  METHODS
  A chart review.
  
  
  METHODS
  Forty-nine patients treated surgically between 1975 and 1998 for pulmonary metastases from colorectal cancer.
  
  
  METHODS
  Thoracotomy with pulmonary resection.
  
  
  METHODS
  Survival of patients with various preoperative and post operative clinical variables.
  
  
  RESULTS
  The perioperative death rate was 4%. Overall 5- and 10-year survival rates were 55% and 40% respectively. The mean interval between the initial colonic resection and resection of pulmonary metastases (discase-free interval) was 36 months. The 7 patients who also under went resection of extrapulmonary metastases had a 5-year survival rate of 52%. Significant preoperative variables that carried a poor prognosis included the following: more than one pulmonary lesion, a disease-free interval of less than 2 years, and moderately or poorly differentiated colorectal cancer. The 16 patients who received chemotherapy after their thoracotomy had a 5-year survival rate of 51% compared with 54% for the 33 patients who did not receive chemotherapy. Recurrent resections of pulmonary lesions did not reduce survival.
  
  
  CONCLUSIONS
  Pulmonary resection for metastatic colorectal cancer is both effective and safe. Resectable extrapulmonary metastases and pulmonary recurrence should not preclude lung resection. Postoperative chemotherapy has no survival benefit. Preoperative variables should guide the clinician when considering surgical intervention.
authors.affiliation: Department of Surgery, McGill University, Montreal, Que. kirshad@hotmail.com
authors.forename: K
authors.initials: K
authors.lastname: Irshad
authors.forename: F
authors.initials: F
authors.lastname: Ahmad
authors.forename: J E
authors.initials: JE
authors.lastname: Morin
authors.forename: D S
authors.initials: DS
authors.lastname: Mulder
mesh_terms: D000230:Adenocarcinoma / Q000401:mortality / Q000556:secondary* / Q000601:surgery*; D000368:Aged; D015179:Colorectal Neoplasms / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000401:mortality / Q000556:secondary* / Q000601:surgery*; D008297:Male; D009364:Neoplasm Recurrence, Local; D011183:Postoperative Complications; D015996:Survival Rate