title: [Clinical research on surgical treatment for non-small cell lung cancer of diameter less than 2 cm].
abstract: OBJECTIVE
  To discuss the model of reasonable dissection extent of mediastinal lymph nodes in non-small cell lung cancer of diameter less than 2 cm.
  
  
  METHODS
  A study was carried on the clinical data of 192 patients with NSCLC of diameter less than 2 cm undergoing curative resection and mediastinal lymph nodes dissection,According to the size of tumor and the pathology quick report.
  
  
  RESULTS
  The survival rates of patient was statistically significant difference (P < 0.01), prognostic factors included diameter of tumor, lymph node metastasis and visceral pleura invasion;51.7% mediastinal lymph node metastasis of superior lobe tumor, 28.8% transfering to subcarinal node; the mediastinal lymph node metastasis rate of adenocarcinoma was 32.2%, and squamous cell carcinoma was 15.4% (P = 0.0012) .
  
  
  CONCLUSIONS
  If the patient's cardiopulmonary function permitting, regardless of the size of focus, Regional mediastinal lymph nodal and subcarinal lymph nodal dissection should be routinely performed on patients with non-small cell lung cancer of diameter less than 2 cm, and improve survival rate.
authors.affiliation: Department of Thoracic Surgery, the First Affiliated Hospital Zhengzhou University, Zhengzhou 450052, China.
authors.forename: Li
authors.initials: L
authors.lastname: Wei
authors.forename: Song
authors.initials: S
authors.lastname: Zhao
authors.forename: Ming-yao
authors.initials: MY
authors.lastname: Chen
authors.forename: Zhong
authors.initials: Z
authors.lastname: Chen
authors.forename: Xiao
authors.initials: X
authors.lastname: Chen
mesh_terms: D000328:Adult; D000368:Aged; D002289:Carcinoma, Non-Small-Cell Lung / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D008197:Lymph Node Excision / Q000379:methods*; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D015996:Survival Rate