Validating facemask use for gas exchange analysis in patients with congestive heart failure

Journal of Cardiopulmonary Rehabilitation
D A BaranR L Goldsmith

Abstract

Functional limitation, often associated with congestive heart failure (CHF), is most accurately assessed with measurement of peak VO2 (VO2peak) during exercise testing. VO2peak strongly predicts survival in CHF patients and is used to triage patients for cardiac transplantation. However, the traditional mouthpiece/noseclip equipment used for gas exchange analysis is often cumbersome and uncomfortable. Several alternative facemask designs tested previously in healthy cohorts were inferior to the mouthpiece for measuring VO2peak. In this study, a series of facemasks designed specifically for VO2peak testing (Hans-Rudolph) was employed. Although previously validated in healthy young adults, this apparatus has not been validated in patients with severe CHF. The Hans-Rudolph facemasks were compared with the mouthpiece apparatus in 30 patients with severe CHF. Each subject completed a cardiopulmonary exercise test with each device. Twelve subjects were randomized to evaluate a possible training effect. To enhance recruitment, 18 additional subjects were recruited after they had completed a test with the mouthpiece. There was no evidence of a training effect and no differences in gas exchange measurements were found between the two de...Continue Reading

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Citations

Aug 5, 2015·Journal of Sports Sciences·Dale R Wagner, Nicolas W Clark
Jan 1, 2006·Journal of the Japanese Physical Therapy Association = Rigaku Ryōhō·Kazuhiro P IzawaKazuto Omiya
Mar 15, 2006·Medicine and Science in Sports and Exercise·Didier SaeyFrançois Maltais
Dec 23, 2014·Evidence-based Complementary and Alternative Medicine : ECAM·Xiao-Hui JiangShang-Mian Yie

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