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The immediate effects of deep breathing exercises on atelectasis and oxygenation after cardiac surgery
Örebro University, School of Health and Medical Sciences, Örebro University, Sweden. Department of Medical Sciences, Clinical Physiology, University Hospital, Uppsala; Departments of Physiotherapy and Thoracic Surgery, Örebro University Hospital, Örebro,.
Department of Neuroscience, Section of Physiotherapy, University Hospital, Uppsala.
Department of Radiology, Örebro University Hospital, Örebro.
Department of Medical Sciences, Clinical Physiology, University Hospital, Uppsala.
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2003 (English)In: Scandinavian Cardiovascular Journal, ISSN 1401-7431, E-ISSN 1651-2006, Vol. 37, no 6, p. 363-367Article in journal (Refereed) Published
Abstract [en]

Objective: To investigate the effects of deep breathing performed on the second postoperative day after coronary artery bypass graft surgery.

Design: The immediate effects of 30 deep breaths performed without a mechanical device (n = 21), with a blow bottle device (n = 20) and with an inspiratory resistance-positive expiratory pressure mask (n = 20) were studied. Spiral computed tomography and arterial blood gas analyses were performed immediately before and after the intervention.

Results: Deep breathing caused a significant decrease in atelectatic area from 12.3 +/- 7.3% to 10.2 +/- 6.7% (p < 0.0001) of total lung area 1 cm above the diaphragm and from 3.9 +/- 3.5% to 3.3 +/- 3.1% (p < 0.05) 5 cm above the diaphragm. No difference between the breathing techniques was found. The aerated lung area increased by 5% (p < 0.001). The PaO (2) increased by 0.2 kPa (p < 0.05), while PaCO (2) was unchanged in the three groups.

Conclusion: A significant decrease of atelectatic area, increase in aerated lung area and a small increase in PaO (2) were found after performance of 30 deep breaths. No difference between the three breathing techniques was found.

Place, publisher, year, edition, pages
2003. Vol. 37, no 6, p. 363-367
National Category
Physiotherapy Cardiac and Cardiovascular Systems
Research subject
Cardiology
Identifiers
URN: urn:nbn:se:oru:diva-34058DOI: 10.1080/14017430310014984ISI: 000187186600011PubMedID: 14668188Scopus ID: 2-s2.0-0742289614OAI: oai:DiVA.org:oru-34058DiVA, id: diva2:702991
Available from: 2014-03-05 Created: 2014-03-05 Last updated: 2017-12-05Bibliographically approved

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Westerdahl, Elisabeth

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