title: [Problems involved in the resection of pulmonary metastasis from colorectal cancer in the era of new anticancer drugs].
abstract: OBJECTIVE
  Surgical resection has been the standard treatment recommended for respectable pulmonary metastasis from colorectal cancer. However, we should evaluate again the indication of bilateral thoracotomy and repeat resection of pulmonary metastatic lesions, because these surgical interventions may deteriorate the patients' quality of life. This retrospective study was performed to address this issue.
  
  
  METHODS
  The subjects were 39 patients who underwent pulmonary metastatectomy of colorectal cancer between May 1990 and January 2007. The prognosis was evaluated according to the types of thoracotomy, bilateral thoracotomy (n=5), repeat pulmonectomy (n=6), and single thoracotomy (n=28). In addition, the impact of new anticancer drugs (5-fluorouracil+Leucovorin, S-1, irinotecan, and oxaliplatin) on survival after thoracotomy was examined.
  
  
  RESULTS
  The patients undergoing bilateral thoracotomy showed a significantly shorter survival after the last thoracotomy than those in other groups (p=0.03). The survival time after the initial thoracotomy was not different between patients who received new anticancer drugs (n=11) and those without (n=28, p=0.58).
  
  
  CONCLUSIONS
  Bilateral pulmonary metastatectomy from colorectal cancer appears to have little benefit on survival, while a repeat metastatectomy may cause a long-term survival. A further collection of cases is needed to conclude whether the new anticancer drugs would be useful for prolonging the patients' survival after pulmonary metastatectomy.
authors.affiliation: Dept. of Digestive Tract and General Surgery, Saitama Medical Center, Saitama Medical University.
authors.forename: Masaru
authors.initials: M
authors.lastname: Yokoyama
authors.forename: Keiichiro
authors.initials: K
authors.lastname: Ishibashi
authors.forename: Naoko
authors.initials: N
authors.lastname: Hokama
authors.forename: Toru
authors.initials: T
authors.lastname: Ishiguro
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Miyazaki
authors.forename: Moriyuki
authors.initials: M
authors.lastname: Matsuki
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Ishida
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Gika
authors.forename: Takeshi
authors.initials: T
authors.lastname: Yamahata
authors.forename: Keisuke
authors.initials: K
authors.lastname: Eguchi
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Nakayama
authors.forename: Kouji
authors.initials: K
authors.lastname: Kikuchi
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D015179:Colorectal Neoplasms / Q000188:drug therapy* / Q000473:pathology* / Q000601:surgery; D018572:Disease-Free Survival; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000188:drug therapy* / Q000556:secondary* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D015996:Survival Rate