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Sleep Breath. 2013 Dec;17(4):1159-68. doi: 10.1007/s11325-013-0815-6. Epub 2013 Feb 6.

Depression, physical activity, energy consumption, and quality of life in OSA patients before and after CPAP treatment.

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1
1st Department of Respiratory Medicine, Medical School, "Sotiria" Hospital for Chest Diseases, National and Kapodistrian University of Athens, 152, Mesogion Av, 115 27, Athens, Greece, chjdiam@yahoo.com.

Abstract

BACKGROUND:

A variety of studies have demonstrated improvement in quality of life and depressive symptoms in obstructive sleep apnea (OSA) patients after continuous positive airway pressure (CPAP) treatment. However, very little is known about the effect of OSA treatment on physical activity and energy consumption.

OBJECTIVES:

The aim of this study was to evaluate the changes in depression, physical activity, energy expenditure, and quality of life (QoL) in OSA patients before and after CPAP therapy.

METHODS:

Forty-one patients with OSA as revealed by polysomnography, were included to the study. They responded to the generic World Health Organization Quality of Life (WHOQoL) questionnaire, to the specific-disease Quebec Sleep Questionnaire, and to Center for Epidemiologic Studies Depression Scale (CES-D) in order to evaluate QoL and the incidence of depression. In addition, all patients wore an accelerometer which measured physical activity and energy expenditure during a week. At least 6 months after initiation of CPAP treatment (mean time, 9 months) we re-examined 24 patients who met the compliance with the treatment criteria.

RESULTS:

Patients after CPAP therapy had significantly higher scores in all domains of the Quebec Sleep Questionnaire and in the domains of physical health/level of independence and psychological health/spirituality of the WHOQoL. Depression scores were also better in CES-D after treatment. However, despite the improvement in QoL and psychological status, CPAP therapy had no impact on physical activity and energy expenditure.

CONCLUSIONS:

CPAP therapy improves QoL and lessens depressive symptoms in our group of well-treated OSA patients. However, physical activity and energy expenditure did not present statistically significant improvement in the same group of OSA patients.

PMID:
23386373
DOI:
10.1007/s11325-013-0815-6
[Indexed for MEDLINE]
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