title: Unilateral thoracoscopic subtotal thymectomy for the treatment of stage I and II thymoma.
abstract: OBJECTIVE
  The purpose of this study was to determine the feasibility of thoracoscopic thymectomy for the treatment of Masaoka stage I and II thymoma.
  
  
  METHODS
  We evaluated the short-term outcomes of 40 patients undergoing surgery for Masaoka stage I and II thymomas without myasthenia gravis between July 2000 and July 2008. Of these, 22 patients underwent complete thymoma resection using unilateral thoracoscopic subtotal thymectomy (UTST group), and 18 patients underwent trans-sternal thymectomy (TST group).
  
  
  RESULTS
  Intra-operative blood loss amounts did not differ significantly between the UTST and TST groups (100.6 ml and 208.1 ml, respectively, p=0.0513). The duration of the postoperative hospital stay was significantly shortened in the UTST group (4.6 days vs 11.2 days, p<0.0001). No patient in the UTST group underwent conversion to open surgery. No severe surgical complications, such as bleeding due to injury to the left brachiocephalic vein, and no postoperative complications, were detected in this series.
  
  
  CONCLUSIONS
  These preliminary results suggest that thoracoscopic thymectomy for Masaoka stage I and II thymoma is technically feasible and safe, and it is less invasive for the patient. Nevertheless, this procedure requires further investigation in a large series with a longer follow-up.
authors.affiliation: Department of Surgery, Jikei University School of Medicine, Minatoku, Tokyo, Japan. mak@jikei.ac.jp
authors.forename: Makoto
authors.initials: M
authors.lastname: Odaka
authors.forename: Tadashi
authors.initials: T
authors.lastname: Akiba
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Yabe
authors.forename: Miyako
authors.initials: M
authors.lastname: Hiramatsu
authors.forename: Hideki
authors.initials: H
authors.lastname: Matsudaira
authors.forename: Jun
authors.initials: J
authors.lastname: Hirano
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Morikawa
mesh_terms: D000328:Adult; D000368:Aged; D016063:Blood Loss, Surgical; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D007902:Length of Stay / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D020775:Thoracic Surgery, Video-Assisted / Q000379:methods; D013906:Thoracoscopy / Q000379:methods; D013934:Thymectomy / Q000379:methods; D013945:Thymoma / Q000473:pathology / Q000601:surgery*; D013953:Thymus Neoplasms / Q000473:pathology / Q000601:surgery*; D016896:Treatment Outcome