Title :
A stimulus artifact suppressor for esophageal pacing studies: design and clinical testing
Author :
Jadvar, Hossein ; Benson, D. Woodrow, Jr.
Author_Institution :
Arzco Med. Electron. Inc., Chicago, IL, USA
Abstract :
The design, implementation, and clinical testing of an electronic circuit called a stimulus artifact suppressor (SAS) which eliminates the large stimulator-induced pacing artifacts from the standard 12-lead electrocardiogram (ECG) during esophageal pacing without affecting the ECG signal integrity is described. The SAS consists of (1) a battery-operated blanking pulse generator synchronized to logic pulses from the esophageal stimulator and variable in duration from 0 to 100 ms; (2) a blanking circuit driven by the pulse generator to blank the pacing artifact from the 12-lead ECG, (3) an optical isolation circuitry to electrically isolate the SAS circuitry from the simulator circuitry, and (4) input defibrillation protection circuitry. Test results showing the SAS utility in improving the ECG recording quality and interpretation during esophageal pacing are presented
Keywords :
biomedical electronics; electrocardiography; 0 to 100 ms; 12-lead ECG; blanking circuit; clinical testing; electronic circuit; esophageal pacing studies; input defibrillation protection circuitry; logic pulses; medical electronics; optical isolation circuitry; pulse generator; stimulus artifact suppressor; Blanking; Circuit testing; Electrocardiography; Electronic circuits; Electronic equipment testing; Esophagus; Optical recording; Pulse generation; Signal design; Synthetic aperture sonar;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96261
