title: Longitudinal evaluation the pulmonary function of the pre and postoperative periods in the coronary artery bypass graft surgery of patients treated with a physiotherapy protocol.
abstract: BACKGROUND
  The treatment of coronary artery disease (CAD) seeks to reduce or prevent its complications and decrease morbidity and mortality. For certain subgroups of patients, coronary artery bypass graft surgery (CABG) may accomplish these goals. The objective of this study was to assess the pulmonary function in the CABG postoperative period of patients treated with a physiotherapy protocol.
  
  
  METHODS
  Forty-two volunteers with an average age of 63 ± 2 years were included and separated into three groups: healthy volunteers (n = 09), patients with CAD (n = 9) and patients who underwent CABG (n = 20). Patients from the CABG group received preoperative and postoperative evaluations on days 3, 6, 15 and 30. Patients from the CAD group had evaluations on days 1 and 30 of the study, and the healthy volunteers were evaluated on day 1. Pulmonary function was evaluated by measuring forced vital capacity (FVC), maximum expiratory pressure (MEP) and Maximum inspiratory pressure (MIP).
  
  
  RESULTS
  After CABG, there was a significant decrease in pulmonary function (p < 0.05), which was the worst on postoperative day 3 and returned to the preoperative baseline on postoperative day 30.
  
  
  CONCLUSIONS
  Pulmonary function decreased after CABG. Pulmonary function was the worst on postoperative day 3 and began to improve on postoperative day 15. Pulmonary function returned to the preoperative baseline on postoperative day 30.
authors.affiliation: Post-Graduate Program in Cardiovascular Sciences, Fluminense Federal University, Niteroi, RJ, Brazil.
authors.forename: Adalgiza M
authors.initials: AM
authors.lastname: Moreno
authors.forename: Renata R T
authors.initials: RR
authors.lastname: Castro
authors.forename: Pedro P S
authors.initials: PP
authors.lastname: Sorares
authors.forename: Mauricio
authors.initials: M
authors.lastname: Sant' Anna
authors.forename: Sergio L d
authors.initials: SL
authors.lastname: Cravo
authors.forename: Antônio C L
authors.initials: AC
authors.lastname: Nóbrega
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001938:Brazil / Q000453:epidemiology; D001026:Coronary Artery Bypass / Q000009:adverse effects*; D003324:Coronary Artery Disease / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D026741:Physical Therapy Modalities; D011182:Postoperative Care / Q000379:methods*; D057234:Preoperative Period; D012129:Respiratory Function Tests; D012131:Respiratory Insufficiency / Q000453:epidemiology / Q000503:physiopathology / Q000534:rehabilitation*; D015656:Respiratory Mechanics / Q000502:physiology*; D012189:Retrospective Studies; D012307:Risk Factors; D014797:Vital Capacity / Q000502:physiology*