A Case of Mitral Regurgitation Whose Nocturnal Periodic Breathing was Improved after Mitral Valve Replacement

Fumihiko YASUMA; Hiroshi HAYASHI; Shoji NODA; Masahito TSUZUKI; Minoru TANAKA; Tamotsu OKADA

doi:10.1536/ihj.36.267

Fumihiko YASUMA, Hiroshi HAYASHI, Shoji NODA, Masahito TSUZUKI, Minoru TANAKA, Tamotsu OKADA

Author information

Keywords: Congestive heart failure, Oxygen saturation, Periodic breathing, Polysomnography, Sleep apnea syndrome

JOURNAL FREE ACCESS

1995 Volume 36 Issue 2 Pages 267-272

DOI https://doi.org/10.1536/ihj.36.267

Details

Abstract

Nocturnal periodic breathing (PB) is often observed in patients with congestive heart failure (CHF). We investigated the sleep architecture polysomnographically in a 54-year-old man with CHF due to mitral regurgitation before and after surgical treatment. We found that the overnight frequency of central dominant sleep apnea decreased from 154 to 56, and the lowest nocturnal oxygen saturation increased from 66% to 85% postoperatively. These improvements in the manifestations of PB might be attributed to the improved hemodynamics after successful valve replacement.

Corresponding author

Register with J-STAGE for free!