Significance of Arterial Oxygen Saturation Estimations during Exercise in Patients with Chronic Heart Failure:Using Pulse Oxymeter Tuyoshi Nagata 1 , Yasuhiro Nishiyama 1 , Satoshi Shintani 1 , Ki-ichiro Yamamoto 1 , Yoshinori Koga 1 , Hironori Toshima 1 , Masayoshi Yoh 2 1Division of Cardiology, Kurume University Medical Center 2Division of Cardiology, Yokokura Hospital Keyword: 心不全 , 運動 , 酸素飽和度 , heart failure , exercise , oxygen saturation pp.497-501
Published Date 1997/5/15
DOI https://doi.org/10.11477/mf.1404901481
  • Abstract
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Serial changes in arterial oxygen saturation during treadmill exercise was measured with a pulse oxymeter in 16 patients with chronic heart failure and in 12 con-trols. Control subjects showed no appreciable changes in oxygen saturation during exercise. In patients with heart failure, 6 showed a fall in oxygen saturation by 3% or more during exercise, while the remaining 10 patients did not show any exercise-induced fall in oxy-gen saturation. As compared with those showing no fall in oxygen saturation, patients with a fall in oxygen saturation were more frequently associated with short-ness of breath as end-point. Plasma level of ANP and norepinephrine at rest were significantly higher in patients with a fall in oxygen saturation.

These observations suggest that exercise-induced fall in arterial saturation could be detected by a pulse oxymeter in patients with chronic heart failure and is a useful index of the severity of heart failure.

Copyright © 1997, Igaku-Shoin Ltd. All rights reserved.


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