title: Different CABG methods in patients with chronic obstructive pulmonary disease.
abstract: BACKGROUND
  Pulmonary dysfunction is still a major problem in coronary artery bypass grafting (CABG). The purpose of this randomized study was to determine the effect of different CABG techniques on pulmonary function.
  
  
  METHODS
  Fifty eight patients with severe obstructive pulmonary disease had elective isolated coronary surgery. The surgical methods for the patients with chronic obstructive pulmonary disease (COPD) were standard CABG in 18 patients (group 1), beating heart surgery in 19 patients (group 2), and minimally invasive direct coronary artery bypass grafting (MIDCABG) in 21 patients (group 3).
  
  
  RESULTS
  The earliest extubation time was from group 3 (p < 0.001). The average stay in the intensive care unit was significantly longer in group 1 (2.6 +/- 1.5 days) than in groups 2 (1.4 +/- 0.8 days) and 3 (1.1 +/- 0.8 days) (p < 0.05). The most prevalent respiratory morbidity was atelectasis that developed in 6 patients from group 1, in 2 patients from group 2, and in 3 patients from group 3. Forced expiratory volumes in 1 second (FEV1) obtained in the second postoperative month were significantly lower than preoperative values only in group 1 (p < 0.05). Forced vital capacity (FVC) values were significantly lower than the preoperative values in all three groups (p < 0.05).
  
  
  CONCLUSIONS
  Off-pump bypass surgical procedures are more advantageous than on-pump methods for patients with COPD. These patients can be operated on using the beating heart technique or by using MIDCABG to prevent side effects of CPB on pulmonary function and effects of sternotomy.
authors.affiliation: Department of Cardiovascular Surgery, Koşuyolu Heart and Research Hospital, Istanbul, Turkey. mustafaguler@superonline.com
authors.forename: M
authors.initials: M
authors.lastname: Güler
authors.forename: K
authors.initials: K
authors.lastname: Kirali
authors.forename: M E
authors.initials: ME
authors.lastname: Toker
authors.forename: N
authors.initials: N
authors.lastname: Bozbuğa
authors.forename: S N
authors.initials: SN
authors.lastname: Omeroğlu
authors.forename: E
authors.initials: E
authors.lastname: Akinci
authors.forename: C
authors.initials: C
authors.lastname: Yakut
mesh_terms: D000368:Aged; D002315:Cardiopulmonary Bypass; D001026:Coronary Artery Bypass / Q000379:methods*; D003327:Coronary Disease / Q000150:complications / Q000601:surgery*; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications / Q000503:physiopathology*; D008875:Middle Aged; D011446:Prospective Studies; D012129:Respiratory Function Tests