Stacked inspiratory spirometry reduces pulmonary shunt in patients after coronary artery bypass.

Strider, D; Turner, D; Egloff, M B; Burns, S M; Truwit, J D · Chest · 1994

case_series · Level IV

Where this comes from

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.

Medical subject headings