Effects of conventional physiotherapy, continuous positive airway pressure and non-invasive ventilatory support with bilevel positive airway pressure after coronary artery bypass grafting.

Matte, P.;Jacquet, Luc-Marie;Van Dyck, Michel;Goenen, Martin
(2000) Acta anaesthesiologica Scandinavica — Vol. 44, n° 1, p. 75-81 (2000)

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  • Matte, P.
    Author
  • Jacquet, Luc-MarieUCLouvain
    Author
  • Van Dyck, MichelUCLouvain
    Author
  • Goenen, MartinUCLouvain
    Author
Abstract
BACKGROUND: Coronary artery bypass graft (CABG) surgery with the use of mammary arteries is associated with severe alteration of lung function parameters. The purpose of the present study was to compare the effect on lung function tests of conventional physiotherapy using incentive spirometry (IS) with non-invasive ventilation on continuous positive airway pressure (CPAP) and with non-invasive ventilation on bilevel positive airway pressure (BiPAP or NIV-2P), METHODS: Ninety-six patients were randomly assigned to 1 of 3 groups: NIV-2P (1 h/3 h), CPAP (1 h/3 h) and IS (20/2 h). Pulmonary function tests and arterial blood gases analyses were obtained before surgery. On the 1st and 2nd postoperative days, these parameters were collected together with cardiac output and calculation of venous admixture. RESULTS: For the 3 groups a severe restrictive pulmonary defect was observed during the 1st postoperative day. On the 2nd postoperative day, in opposition to IS, intensive use of CPAP and NIV-2P reduced significantly the venous admixture (P<0.001) and improved VC, FEV1 and PaO2 (P<0.01). CONCLUSION: We conclude that preventive use of NIV can be considered as an effective means to decrease the negative effect of coronary surgery on pulmonary function.
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Matte, P., Jacquet, L.-M., Van Dyck, M., & Goenen, M. (2000). Effects of conventional physiotherapy, continuous positive airway pressure and non-invasive ventilatory support with bilevel positive airway pressure after coronary artery bypass grafting. Acta anaesthesiologica Scandinavica, 44(1), 75-81. https://doi.org/10.1034/j.1399-6576.2000.440114.x (Original work published 2000)