title: The effect of physical therapy on respiratory complications following cardiac valve surgery.
abstract: OBJECTIVE
  To determine whether higher personnel intensive chest physical therapy can prevent the atelectasis that routinely follows cardiac valve surgery.
  
  
  METHODS
  Randomized, controlled trial.
  
  
  METHODS
  Tertiary care hospital.
  
  
  METHODS
  Seventy-eight patients undergoing elective cardiac valve surgery between October 1991 and April 1993 were enrolled.
  
  
  METHODS
  Patients were randomized in an unmasked fashion to receive early mobilization and sustained maximal inflations (lower-intensity treatment) or to receive early mobilization, sustained maximal inflations, and single-handed percussions (higher-intensity treatment.)
  
  
  RESULTS
  Clinical efficacy was determined by extent of atelectasis, length of ICU stay, total length of hospital stay, and personnel costs. The extent of postoperative atelectasis was similar in both groups on the fifth postoperative day. Postoperative values of FVC and FEV1 were reduced to a similar extent in both groups. Hospital stays and ICU stays were similar regardless of treatment. Physical therapy costs were highest in the higher-intensity therapy group.
  
  
  CONCLUSIONS
  Postoperative respiratory dysfunction is common but does not usually cause significant morbidity or prolong hospital stay. The routine prescription of high-intensity physical therapy does not improve patient outcomes but does add significantly to patient costs.
authors.affiliation: Department of Anesthesia, University of Saskatchewan, Saskatoon, Canada.
authors.forename: D
authors.initials: D
authors.lastname: Johnson
authors.forename: C
authors.initials: C
authors.lastname: Kelm
authors.forename: D
authors.initials: D
authors.lastname: Thomson
authors.forename: B
authors.initials: B
authors.lastname: Burbridge
authors.forename: I
authors.initials: I
authors.lastname: Mayers
mesh_terms: D000368:Aged; D006348:Cardiac Surgical Procedures / Q000534:rehabilitation*; D005260:Female; D006351:Heart Valves / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D026741:Physical Therapy Modalities / Q000191:economics; D011183:Postoperative Complications / Q000517:prevention & control*; D001261:Pulmonary Atelectasis / Q000517:prevention & control*; D012129:Respiratory Function Tests; D016896:Treatment Outcome