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  • Title: [Early polysomnographic detection of congestive heart failure caused by aortic valve stenosis].
    Author: Walther JW, Duchna HW, Schlosser BM, de Zeeuw J, Schultze-Werninghaus G, Orth M.
    Journal: Med Klin (Munich); 2005 Feb 15; 100(2):109-13. PubMed ID: 15711906.
    Abstract:
    BACKGROUND: Obstructive sleep apnea (OSAS) is assumed to be an independent cardiovascular risk factor, whereas central sleep apnea with Cheyne-Stokes breathing occurs in congestive heart failure and has a prognostic value. CASE REPORT: The case of a 74-year-old man with long-term continuous positive airway pressure treatment due to OSAS is reported. In a routine polysomnography central apneas and Cheyne-Stokes breathing without any clinical signs of heart failure were seen. Further investigations revealed a newly diagnosed aortic valve stenosis with good left ventricular function. Clinical signs of congestive heart failure came up 2 weeks after first diagnosed Cheyne-Stokes breathing. CONCLUSION: Cheyne-Stokes breathing can be observed in acute heart failure before occurrence of any clinical signs of congestive heart failure and should always lead to further investigations. The current understanding of pathophysiological pathways in Cheyne-Stokes breathing is reviewed.
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