Sleep polysomnography in patients with heart failure

Abstract

Objectives: To describe the characteristics of polysomnography of sleep apnea syndrome in heart failure patients at Bach Mai Hospital.Subjects and Methods: A cross-sectional study on 63 patients diagnosed with heart failure with echocardiography and sleep polysomnography, and consented to participate in the study.Results and conclusions: The study on 63 heart failure patients with sleep apnea included 54 (85.7%) male patients and 9 (14.3%) female patients. The average age of the study subjects was 69.57 ± 13.08 years old. ProBNP levels, ejection fraction, systolic and diastolic volume and diameter of the ventricles in the heart failure subgroups were significantly different with p < 0.05. Pulmonary arterial pressure in the heart failure subgroups was not statistically significant with p > 0.05. The average total sleep time was 334.8 ± 119.8 minutes. The longest recorded REM period was 54 minutes. The achieved sleep efficiency is 64.70 ±27.43%. The difference between HI and AHI in heart failure subgroups was not statistically significant with p > 0.05. The rate of severity of sleep apnea at different levels of heart failure according to EF classification was not statistically significant with p > 0.05.