title: Use of the Heimlich valve to shorten hospital stay after lung reduction surgery for emphysema.
abstract: BACKGROUND
  Prolonged air leak is the major complication after lung reduction surgery for emphysema and the major determinant of hospital length of stay.
  
  
  METHODS
  Twenty-five of 107 patients (24%) (mean age, 66 years) with an average forced expiratory volume in 1 second of 0.55 L experienced a prolonged air leak (>5 days) after lung reduction surgery. These persistent air leaks were treated by replacing the chest drainage system with Heimlich valves to facilitate earlier hospital discharge even though 64% of the patients had apical air spaces that measured 1 to 7 cm.
  
  
  RESULTS
  These patients had a mean postoperative stay of 9.1 days. Chest tubes were then removed an average of 7.7 days later. All apical air spaces resolved, and there were no deaths, empyemas, or pneumonias.
  
  
  CONCLUSIONS
  In conclusion, the use of the Heimlich valve after operation for emphysema was associated with minimal morbidity and shortened the mean hospital stay for patients with prolonged air leaks by 46%. This study demonstrates an important concept in the postoperative management of these patients--do not use suction on severely emphysematous lung.
authors.affiliation: Lung Center, Chapman Medical Center, Orange, California, USA.
authors.forename: R J
authors.initials: RJ
authors.lastname: McKenna
authors.forename: R J
authors.initials: RJ
authors.lastname: Fischel
authors.forename: M
authors.initials: M
authors.lastname: Brenner
authors.forename: A F
authors.initials: AF
authors.lastname: Gelb
mesh_terms: D000368:Aged; D015505:Chest Tubes; D004322:Drainage / Q000295:instrumentation*; D005260:Female; D006801:Humans; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D011013:Pneumonectomy; D011182:Postoperative Care / Q000295:instrumentation*; D011183:Postoperative Complications / Q000628:therapy*; D011446:Prospective Studies; D011656:Pulmonary Emphysema / Q000601:surgery*; D017792:Surgical Stapling; D013906:Thoracoscopy; D014741:Video Recording