Portable obstructive sleep apnea screening system using overnight ECG and a PDA-based wireless transmission system.
Sleep disorders such as obstructive sleep apnea (OSA) are now regarded as an important risk factor for cardiovascular diseases. The increasing demands for home-based sleep monitoring have prompted studies to develop devices that monitor sleep using fewer sensors. This paper proposes an electrocardiogram (ECG)-based sleep monitoring system that uses a personal digital assistant to display signals and a wireless transmission system. An OSA detection algorithm based only on the overnight-ECG-derived heart-rate-variability low-frequency component (0.02-0.04 Hz) exhibited detection sensitivity of 68.97% and specificity of 100%. This system could meet the future demands of home-based sleep monitoring and thereby reduce the current considerable burdens on hospital sleep centers.
Department of Information and Communication Engineering, Asia University, Taichung, Taiwan. changkm@asia.edu.tw
Kang-Ming
KM
Chang
D034201:Computers, Handheld; D004562:Electrocardiography / Q000295:instrumentation*; D006801:Humans; D008403:Mass Screening / Q000295:instrumentation*; D020181:Sleep Apnea, Obstructive / Q000175:diagnosis*; D013686:Telemetry / Q000295:instrumentation*