Title :
ECG variation with R-R interval and with time-since breath in quiet subjects
Author :
Good, J. ; Gaumond, R.
Author_Institution :
Pennsylvania State Univ., University Park, PA, USA
Abstract :
In continuous 10-min recordings of lead II electrocardiogram (ECG) signals of two quiet seated subjects, variations of the ECG waveforms as a function of R-R interval and as a function of time sinc breath (breath interval) were examined. It was found that waveform measures such as QRS area and Q-R slope vary significantly as a function of breath interval. The R-T interval did not vary significantly with breath interval but did vary with R-R interval. The variation is less pronounced in quiet subjects than that which would be predicted from the Bazett equation for normalization of Q-T intervals by R-R intervals in general clinical use
Keywords :
electrocardiography; patient monitoring; pneumodynamics; waveform analysis; Bazett equation; ECG waveforms; Q-R slope; QRS area; R-R interval; R-T interval; breath interval; clinical use; continuous recordings; electrocardiogram signals; normalization; quiet seated subjects; time-since breath; Area measurement; Autonomic nervous system; Biomedical engineering; Electrocardiography; Equations; Heart rate; Heart rate interval; Myocardium; Optical recording; Optical scattering;
Conference_Titel :
Bioengineering Conference, 1990., Proceedings of the 1990 Sixteenth Annual Northeast
Conference_Location :
State College, PA
DOI :
10.1109/NEBC.1990.66303
