Ventricular Postextrasystolic Potentiation in the Dog A Study Using List Mode Radionuclide Ventriculography
- 1 January 1983
- journal article
- research article
- Published by Wolters Kluwer Health in Investigative Radiology
- Vol. 18 (6) , 530-535
- https://doi.org/10.1097/00004424-198311000-00010
Abstract
The first and second postextrasystolic sinus beats (PESB) were isolated and analyzed in five open-chested dogs with the aid of list mode radionuclide ventriculography. Ventricular stimulation was delivered using a coupling interval of 150 msec from electrodes positioned at two (in two animals) or five (in three animals) different ventricular sites. There were marked increases in both left ventricular ejection fraction (41.5 ± 4% vs. 56.8 ± 3.9%; control vs. PESB, pKeywords
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