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Deep breathing exercises performed 2 months following cardiac surgery: a randomized controlled trial
Örebro University, School of Health and Medical Sciences, Örebro University, Sweden. Örebro University Hospital. Department of Physiotherapy, Örebro University Hospital, Örebro, Sweden; Department of Cardiothoracic Surgery, Örebro University Hospital, Örebro, Sweden; Örebro University Hospital, Centre for Health Care Sciences, Örebro, Sweden .
Physiotherapy, Department of Neuroscience, Department of Medical Sciences, Uppsala University, Uppsala, Sweden .
Örebro University, School of Health and Medical Sciences, Örebro University, Sweden. Department of Physiotherapy, Örebro University Hospital, Örebro, Sweden; Department of Cardiothoracic Surgery, Örebro University Hospital, Örebro, Sweden.
Department of Occupational and Environmental Medicine, Örebro University Hospital, Örebro, Sweden .
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2014 (English)In: Journal of cardiopulmonary rehabilitation and prevention, ISSN 1932-7501, Vol. 34, no 1, p. 34-42Article in journal (Refereed) Published
Abstract [en]

PURPOSE: Postoperative breathing exercises are recommended to cardiac surgery patients. Instructions concerning how long patients should continue exercises after discharge vary, and the significance of treatment needs to be determined. Our aim was to assess the effects of home-based deep breathing exercises performed with a positive expiratory pressure device for 2 months following cardiac surgery.

METHODS: The study design was a prospective, single-blinded, parallel-group, randomized trial. Patients performing breathing exercises 2 months after cardiac surgery (n = 159) were compared with a control group (n = 154) performing no breathing exercises after discharge. The intervention consisted of 30 slow deep breaths performed with a positive expiratory pressure device (10-15 cm H2O), 5 times a day, during the first 2 months after surgery. The outcomes were lung function measurements, oxygen saturation, thoracic excursion mobility, subjective perception of breathing and pain, patient-perceived quality of recovery (40-Item Quality of Recovery score), health-related quality of life (36-Item Short Form Health Survey), and self-reported respiratory tract infection/pneumonia and antibiotic treatment.

RESULTS: Two months postoperatively, the patients had significantly reduced lung function, with a mean decrease in forced expiratory volume in 1 second to 93 ± 12% (P< .001) of preoperative values. Oxygenation had returned to preoperative values, and 5 of 8 aspects in the 36-Item Short Form Health Survey were improved compared with preoperative values (P< .01). There were no significant differences between the groups in any of the measured outcomes.

CONCLUSION: No significant differences in lung function, subjective perceptions, or quality of life were found between patients performing home-based deep breathing exercises and control patients 2 months after cardiac surgery.

Place, publisher, year, edition, pages
2014. Vol. 34, no 1, p. 34-42
Keywords [en]
Cardiac surgery; Deep breathing exercises; Positive expiratory pressure device
National Category
Physiotherapy Cardiac and Cardiovascular Systems
Research subject
Cardiology
Identifiers
URN: urn:nbn:se:oru:diva-34068DOI: 10.1097/HCR.0000000000000020ISI: 000335569100005PubMedID: 24280904Scopus ID: 2-s2.0-84895066786OAI: oai:DiVA.org:oru-34068DiVA, id: diva2:702983
Funder
Swedish Heart Lung FoundationSwedish Research Council
Note

Funding Agencies:

Research Committee of Örebro County Council

Swedish Heart and Lung Patients National Association

Uppsala University

Uppsala-Örebro Regional Research Council, Sweden

Available from: 2014-03-05 Created: 2014-03-05 Last updated: 2018-06-05Bibliographically approved

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Westerdahl, ElisabethJonsson, Marcus

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