title: Influence of old pulmonary tuberculosis on the management of secondary spontaneous pneumothorax in patients over the age of 70 years.
abstract: BACKGROUND
  This study aimed to investigate the treatment outcomes and influence of old pulmonary tuberculosis (TB) in elderly patients (over 70 years) with secondary spontaneous pneumothorax (SSP).
  
  
  METHODS
  A retrospective analysis was performed on patients with SSP between January 2002 and December 2014. Treatment outcomes including chest tube duration (CTD), type and complication of surgery, recurrence and survival rate were obtained from the review of medical records and analyzed statistically.
  
  
  RESULTS
  Two hundred and sixteen consecutive cases were recruited. Of these, 134 (62.0%) did not have old pulmonary TB [non-tuberculosis (NTB) group], and the other 82 (38.0%) had experienced pulmonary TB (TB group). More thoracoscopic surgeries had been performed in the NTB group (P=0.038). More postoperative complications developed in the TB group (P=0.038). Total CTD and postoperative CTD in the TB group were significantly longer (P=0.015 and 0.030, respectively). However, recurrence-free survival and overall survival rate were not significantly different between the TB and NTB groups.
  
  
  CONCLUSIONS
  Old pulmonary TB in elderly patients with SSP made their treatment more complicated. However, surgery might be considered in highly selected patients regardless of old pulmonary TB, and could be conducted with acceptable morbidity and mortality.
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea.
authors.forename: Sang Cjeol
authors.initials: SC
authors.lastname: Lee
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea.
authors.forename: Deok Heon
authors.initials: DH
authors.lastname: Lee
keywords: Pulmonary tuberculosis; pneumothorax and elderly