title: Comparison of surgical results after pneumonectomy and sleeve lobectomy for non-small cell lung cancer: trends over time and 20-year institutional experience.
abstract: OBJECTIVE
  Sleeve lobectomy is a lung-saving procedure for central tumors for which the alternative is pneumonectomy. The purpose of this study was to report the clinical characteristics, operative results, survival, and late outcomes over 20 years in patients who underwent sleeve lobectomy and pneumonectomy at our institution.
  
  
  METHODS
  There were 62 patients who underwent sleeve lobectomy (SL group) and 110 who underwent pneumonectomy (PN group). Comparisons of the demographics, morbidity, and survivals between the groups were performed by unpaired t-test, chi(2)-test, and log-rank test.
  
  
  RESULTS
  Patients who underwent a pneumonectomy showed a significantly advanced pathological stage, and a larger tumor size than those who received a sleeve lobectomy, whereas there were no significant differences in histology, ratio of combined resection and induction therapy, or total morbidity. There were three in-hospital deaths (4.8%) in the SL group and four (3.6%) in the PN group. Local relapse and distant recurrence incidence were similar between the two groups. The 5-year-survival rates of the SL and PN groups were 54% and 33%, respectively (p<0.0001). However, there were no differences in 5-year survivals in patients with pathological stage I/II (SL, 59% vs PN, 63%) and those who received induction therapy (SL, 22% vs PN, 52%) between the groups.
  
  
  CONCLUSIONS
  Both pneumonectomy and sleeve lobectomy were performed with an acceptable risk of operative mortality and satisfactory 5-year survival rate. The indication of pneumonectomy is aimed to perform a curative resection for locally advanced lung cancer, particularly after induction therapy that is otherwise unresectable, and the selected patients will likely benefit from a complete resection.
authors.affiliation: Department of General Thoracic Surgery, National Hospital Organization, Toneyama National Hospital, Toneyama 5-1-1, Toyonaka, Osaka 560-8552, Japan. stakeda@toneyama.hosp.go.jp
authors.forename: Shin-Ichi
authors.initials: S
authors.lastname: Takeda
authors.forename: Hajime
authors.initials: H
authors.lastname: Maeda
authors.forename: Masaru
authors.initials: M
authors.lastname: Koma
authors.forename: Yoko
authors.initials: Y
authors.lastname: Matsubara
authors.forename: Noriyoshi
authors.initials: N
authors.lastname: Sawabata
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Inoue
authors.forename: Toshiteru
authors.initials: T
authors.lastname: Tokunaga
authors.forename: Mitsunori
authors.initials: M
authors.lastname: Ohta
mesh_terms: D000368:Aged; D002289:Carcinoma, Non-Small-Cell Lung / Q000473:pathology / Q000601:surgery*; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011013:Pneumonectomy / Q000009:adverse effects / Q000379:methods* / Q000639:trends; D011183:Postoperative Complications; D016896:Treatment Outcome