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Stacked inspiratory spirometry reduces pulmonary shunt in patients after coronary artery bypass
D Strider1, D Turner, M B Egloff
1University of Virginia Health Sciences Center, Charlottesville, USA.
Chest
|August 1, 1994
Abstract:
Atelectasis is a major factor in postoperative morbidity for patients undergoing cardiopulmonary surgery. We evaluated the effectiveness of stacked inspiratory spirometry (STIS) in 17 patients status postcoronary artery bypass graft in a nonrandomized fashion. We measured pulmonary shunt as an endpoint, and compared the magnitudes before and after the STIS maneuver. Our results showed an 8.66 percent reduction in pulmonary shunt (p < 0.05). The reduction in shunt was modest; however, repetitive maneuvers might result in greater improvement.