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Ocular pneumoplethysmography in cardiac pacing
Pacing and Clinical Electrophysiology : PACE
|November 1, 1983
Summary
Ocular blood flow (OBF) closely mirrors cardiac stroke output. Ocular pneumoplethysmography (OPG-Gee) offers a noninvasive method to evaluate hemodynamics during different pacing modes.
Area of Science:
- Cardiovascular Physiology
- Ophthalmology
- Medical Instrumentation
Background:
- Ocular blood flow (OBF) is closely linked to cardiac output.
- Assessing hemodynamic changes noninvasively is crucial in cardiovascular monitoring.
Purpose of the Study:
- To evaluate ocular pneumoplethysmography (OPG-Gee) as a method for measuring OBF.
- To assess the hemodynamic differences between ventricular and atrioventricular sequential pacing using OPG-Gee.
Main Methods:
- Utilized ocular pneumoplethysmography (OPG-Gee) for OBF measurement.
- Compared hemodynamic assessments during ventricular pacing versus atrioventricular sequential pacing.
Main Results:
- OBF variations demonstrated a strong correlation with cardiac stroke output.
- OPG-Gee provided a simple, noninvasive means to assess hemodynamic responses to different pacing strategies.
Conclusions:
- OBF, as measured by OPG-Gee, is a reliable indicator of cardiac hemodynamics.
- OPG-Gee is a valuable noninvasive tool for evaluating pacing-induced hemodynamic changes.