TITLE

Elimination of central sleep apnoea by mitral valvuloplasty: the role of feedback delay in periodic breathing

AUTHOR(S)
Rubin A E; Gottlieb S H; Gold A R; Schwartz A R; Smith P L
PUB. DATE
February 2004
SOURCE
Thorax;Feb2004, Vol. 59 Issue 2, p174
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Central sleep apnoea is a form of periodic breathing which resembles Cheyne-Stokes respiration but occurs only during sleep. One mechanism in the pathogenesis is a delay in chemical feedback from the lungs to the medullary respiratory centre. We explored the relationship between circulatory feedback delay in a patient with central sleep apnoea and Cheyne-Stokes respiration before and after mitral valve repair. Preoperatively the patient had severe central sleep apnoea and an increased circulation time. Following mitral valvuloplasty the circulation time was decreased with resolution of central sleep apnoea. This case demonstrates the role of feedback delay in central sleep apnoea and suggests that similar haemodynamic mechanisms may lead to central sleep apnoea and Cheyne-Stokes respiration.
ACCESSION #
12653840

 

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