• K R Larsen, U Ingwersen, S Thode, and S H Jakobsen.
• Amtssygehuset i Gentofte, thoraxkirurgisk afdeling R, fysioterapiafsnittet og medicinsk/lungemedicinsk afdeling Y.
• Ugeskr. Laeg. 1997 Mar 31;159(14):2096-9.

AbstractThe objective of this prospective, consecutive, randomized, controlled study was to investigate the effects of mask physiotherapy on postoperative complications after heart surgery. Sixty-six low-risk male patients undergoing coronary artery by-pass graft surgery were evaluated. The patients were treated with routine chest physiotherapy alone or supplied with either positive expiratory pressure (PEP), or inspiratory resistance-positive expiratory pressure (IR-PEP). Postoperative pulmonary complications were assessed by forced vital capacity (FVC), arterial oxygen tension (PaO2), and chest X-ray examination. There was an almost equal decrease and subsequent rise in spirometric and blood gas values in all three groups, but patients treated with the PEP mask had a borderline significantly higher increase in PaO2 from day three to day six compared with patients treated with no mask. There was an almost equal frequency of atelectasis in the three treatment groups. It is concluded that no significant differences in outcome were found between the three groups.

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