title: Transfissural route used for preoperative localization of small pulmonary lesions with a short hook wire and suture system.
abstract: OBJECTIVE
  We retrospectively evaluated the results of the transfissural route for preoperative localization with a short hook wire and suture system for video-assisted thoracoscopic surgery (VATS).
  
  
  METHODS
  Eleven patients with 11 tumors underwent CT-guided transfissural placement of a hook wire before VATS. This route was selected for all patients, because the distance between the tumor and interlobar fissure was much shorter than the required distance traversed using the conventional approach. Complications were evaluated using the National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0.
  
  
  RESULTS
  The hook wire was successfully placed using the transfissural route in all but one case. Of these ten successful placements, two tumors needed a second puncture for optimal placement, because the CT scan showed that the first hook wire was not properly placed in the lung. In one patient, we did not attempt replacement after the first placement was incorrect. In ten successful procedures, the mean distance traversed in the parenchyma of the unaffected lung lobe was 27.9 mm. The distance between the pleura and placed hook wire was significantly shorter than the estimated distance between the pleura and hook wire using the conventional route (mean 16.3 vs. 40.9 mm; P = 0.0002). Grade 1 adverse events occurred (11 pneumothoraxes and 4 pulmonary hemorrhages). No grade 2 or higher adverse event was observed.
  
  
  CONCLUSIONS
  The transfissural route used for preoperative localization before VATS is useful for selected patients because this route may allow for more limited lung parenchyma resection.
authors.affiliation: Department of Radiology, Okayama University Medical School, 2-5-1 Shikata-cho kita-ku, Okayama, 700-8558, Japan, iguchi@ba2.so-net.ne.jp.
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Iguchi
authors.forename: Takao
authors.initials: T
authors.lastname: Hiraki
authors.forename: Hideo
authors.initials: H
authors.lastname: Gobara
authors.forename: Hiroyasu
authors.initials: H
authors.lastname: Fujiwara
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Matsui
authors.forename: Seiichiro
authors.initials: S
authors.lastname: Sugimoto
authors.forename: Shinichi
authors.initials: S
authors.lastname: Toyooka
authors.forename: Takahiro
authors.initials: T
authors.lastname: Oto
authors.forename: Shinichiro
authors.initials: S
authors.lastname: Miyoshi
authors.forename: Susumu
authors.initials: S
authors.lastname: Kanazawa
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging / Q000601:surgery; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011300:Preoperative Care / Q000379:methods*; D015641:Radiography, Interventional / Q000379:methods*; D012189:Retrospective Studies; D013537:Sutures; D020775:Thoracic Surgery, Video-Assisted / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods*; D016896:Treatment Outcome; D055815:Young Adult