The purpose of this study is to determine the prevalence of sleep-related breathing disorders (SRBD) in clinically stable cardiologic outpatients of a German university clinic by means of polygraphy. Furthermore, the practicability of the underlying diagnostic process in clinical application is assessed as well as the sensitivity and specificity of polygraphy as compared to the reference standard of polysomnography. Another aim is to determine the individual cardiovascular risk profile by pulse wave analysis and risk classification according to European Society of Hypertension (ESH) and European Society of Cardiology (ESC), "ESH/ESC risk".
Study Type
OBSERVATIONAL
Enrollment
90
University Clinic Cologne, Heart Center
Cologne, North Rhine-Westphalia, Germany
Prevalence of sleep-related breathing disorders
Prevalence of sleep-related breathing disorders as measured by ambulatory polygraphy and defined as an respiratory disturbance index of \>=15/h
Time frame: Once within two days of inclusion
Number of patients included
Total number of patients included in the study after overall study conclusion
Time frame: through study completion, an average of 21 months
Number of patients with actually performed polygraphy
Total number of patients in whom ambulatory polygraphy was actually performed, after overall study conclusion
Time frame: through study completion, an average of 21 months
Number of patients with assessable polygraphy
Total number of patients in whom ambulatory polygraphy was assessable, after overall study conclusion
Time frame: through study completion, an average of 21 months
Number of patients with actually performed polysomnography
Total number of patients in whom stationary polysomnography was actually performed, after overall study conclusion
Time frame: through study completion, an average of 21 months
Number of patients with assessable polysomnography
Total number of patients in whom stationary polysomnography was assessable, after overall study conclusion
Time frame: through study completion, an average of 21 months
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