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Continuous ventricular volume assessment for diagnosis and pacemaker control.

R W Salo·B D Pederson·A L Olive·W C Lincoln·T G Wallner
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Abstract

Stroke volume measurements made by a catheter-based, right ventricular, intracardiac impedance system at rest and during upright bicycle ergometry were found to compare favorably with measurements made by acetylene rebreathing (r = 0.96, n = 13) and by radionuclide ventriculography (r = 0.96, n = 13) in a 46-year-old male pacemaker-dependent subject. The impedance information was then used to control the ventricular pacing rate during bicycle exercise, utilizing an algorithm that attempts to maintain a constant stroke volume. This resulted in a 23% increase in cardiac output accompanied by a 70% decrease in stroke volume as compared to the values measured during the same exercise at 70 pulses per minute (ppm).

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Cardiac OutputCardiac Pacing, ArtificialCardiography, ImpedanceExercise TestHeart Function TestsHumansMaleMiddle AgedPacemaker, ArtificialPostureStroke VolumeTime FactorsJournal Article

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BibTeXRIS

R W Salo, B D Pederson, A L Olive, W C Lincoln, T G Wallner. 1984. Continuous ventricular volume assessment for diagnosis and pacemaker control.. https://doi.org/10.1111/j.1540-8159.1984.tb05694.x

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