title: Video-assisted thoracic surgery versus open lobectomy for lung cancer: a secondary analysis of data from the American College of Surgeons Oncology Group Z0030 randomized clinical trial.
abstract: OBJECTIVE
  Video-assisted thoracoscopic lobectomy remains controversial. We compared outcomes from participants in a randomized study comparing lymph node sampling versus dissection for early-stage lung cancer who underwent either video-assisted thoracoscopic or open lobectomy.
  
  
  METHODS
  Data from 964 participants in the American College of Surgeons Oncology Group Z0030 trial were used to construct propensity scores for video-assisted thoracoscopic versus open lobectomy (based on age, gender, histology, performance status, tumor location, and T1 vs T2). Propensity scores were used to estimate the adjusted risks of short-term outcomes of surgery. Patients were classified into 5 equal-sized groups and compared using conditional logistic regression or repeated measures analysis of variance.
  
  
  RESULTS
  A total of 752 patients (66 video-assisted and 686 open procedures) were analyzed on the basis of propensity score stratification. Median operative time was shorter for video-assisted thoracoscopic lobectomy (video-assisted thoracoscopy 117.5 minutes vs open 171.5 minutes; P < .001). Median total number of lymph nodes retrieved (dissection group only) was similar (video-assisted thoracoscopy 15 nodes vs open 19 nodes; P = .147), as were instances of R1/R2 resection (video-assisted thoracoscopy 0% vs open 2.3%; P = .368). Patients undergoing video-assisted thoracoscopic lobectomy had less atelectasis requiring bronchoscopy (0% vs 6.3%, P = .035), fewer chest tubes draining greater than 7 days (1.5% vs 10.8%; P = .029), and shorter median length of stay (5 days vs 7 days; P < .001). Operative mortality was similar (video-assisted thoracoscopy 0% vs open 1.6%, P = 1.0).
  
  
  CONCLUSIONS
  Patients undergoing video-assisted lobectomy had fewer respiratory complications and shorter length of stay. These data suggest video-assisted thoracoscopic lobectomy is safe in patients with resectable lung cancer. Longer follow-up is needed to determine the oncologic equivalency of video-assisted versus open lobectomy.
authors.affiliation: Fox Chase Cancer Center, Department of Surgical Oncology, 7701 Burholme Avenue, Philadelphia, PA 19111, USA. walter.scott@fccc.edu
authors.forename: Walter J
authors.initials: WJ
authors.lastname: Scott
authors.forename: Mark S
authors.initials: MS
authors.lastname: Allen
authors.forename: Gail
authors.initials: G
authors.lastname: Darling
authors.forename: Bryan
authors.initials: B
authors.lastname: Meyers
authors.forename: Paul A
authors.initials: PA
authors.lastname: Decker
authors.forename: Joe B
authors.initials: JB
authors.lastname: Putnam
authors.forename: Robert W
authors.initials: RW
authors.lastname: McKenna
authors.forename: Rodney J
authors.initials: RJ
authors.lastname: Landrenau
authors.forename: David R
authors.initials: DR
authors.lastname: Jones
authors.forename: Richard I
authors.initials: RI
authors.lastname: Inculet
authors.forename: Richard A
authors.initials: RA
authors.lastname: Malthaner
mesh_terms: D000368:Aged; D002289:Carcinoma, Non-Small-Cell Lung / Q000601:surgery*; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000601:surgery*; D008197:Lymph Node Excision / Q000379:methods; D008297:Male; D008875:Middle Aged; D011013:Pneumonectomy / Q000379:methods*; D057216:Propensity Score; D020775:Thoracic Surgery, Video-Assisted; D013908:Thoracotomy; D013997:Time Factors; D016896:Treatment Outcome