Title :
Pulse transit time-derived respiratory parameters and their variability across sleep stages
Author :
Chua, C.P. ; Heneghan, C.
Abstract :
We considered the capability of pulse transit time (PTT) to provide respiratory information in obstructive sleep apnea (OSA) patients. PTT-derived respiratory frequency was quite well correlated with that derived from inductance plethysmography, with amplitude slightly less so. The PTT-derived respiratory estimates were also used to distinguish sleep stage. In some subjects, statistically significant differences in respiratory parameters were observed between wake, REM, and stage 2 sleep, but this effect was highly subject dependent
Keywords :
diseases; neurophysiology; plethysmography; pneumodynamics; sleep; REM; inductance plethysmography; obstructive sleep apnea; pulse transit time variability; respiratory frequency; respiratory information; respiratory parameters; sleep stages; stage 2 sleep; subject-dependent effect; wake; Arteries; Biomedical monitoring; Blood pressure; Databases; Electrocardiography; Frequency estimation; Inductance; Plethysmography; Pulse measurements; Sleep;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1615899
