title: [The clinical value of routine preoperative surgical staging to mediastinal lymph nodes on lung cancer].
abstract: OBJECTIVE
  The aim of this study is the clinical value of preoperative routine surgical staging to mediastinal lymph nodes on lung cancer.
  
  
  METHODS
  Seventy-six cases underwent lymph nodes biopsy with mediastinoscopy. The diagnostic efficacy of thoracic CT scan and mediastinoscopy on mediastinal lymph nodes metastasis were compared.
  
  
  RESULTS
  The sensitivity, specificity, accuracy, positive predictive value and negative predictive value of thoracic CT scan and mediastinoscopy on diagnosing mediastinal lymph nodes metastasis were 68.5%, 66.7%, 68.4%, 84.6%, 16.7% and 87.5%, 100%, 84.2%, 100%, 60%, respectively.
  
  
  CONCLUSIONS
  Routine preoperative mediastinoscopy had obvious advantage compared with thoracic CT scan on mediastinal lymph nodes staging. The routine preoperative surgical staging of mediastinal lymph nodes on lung cancer had high clinical value.
authors.affiliation: Department of Thoracic Surgery, Shanghai Changning District Central Hospital, Shanghai 200336, China.
authors.forename: Ye
authors.initials: Y
authors.lastname: Xu
authors.forename: Yang
authors.initials: Y
authors.lastname: Shentu
authors.forename: Min
authors.initials: M
authors.lastname: Zheng
authors.forename: Ming
authors.initials: M
authors.lastname: Guo
mesh_terms: D000368:Aged; D002289:Carcinoma, Non-Small-Cell Lung / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D008207:Lymphatic Metastasis; D008297:Male; D008481:Mediastinoscopy; D008482:Mediastinum / Q000473:pathology*; D008875:Middle Aged; D009367:Neoplasm Staging; D014057:Tomography, X-Ray Computed