Výsledky vyhledávání - "Don W. Wallick"

Cardiac Resynchronization Therapy Plus Coupled Pacing Improves Acutely Myocardial Function in Heart Failure Patients

Autor: Pascal Lim, Jean-Luc Dubois-Randé, Thibaud Damy, Pascal Guéret, Camille Brémont, Nicolas Lellouche, Don W. Wallick, Nathalie Elbaz

Publikováno v: Pacing and Clinical Electrophysiology. 37:803-809

Background Coupled pacing (CP), which consists of an additional beat delivered after ventricular refractory period, has been proposed to reduce ventricular rate and increase ventricular contractility. We hypothesized that CP may be added to cardiac r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4f25332016b5c17b1362a7f25f84ab1e
https://doi.org/10.1111/pace.12348

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Coupled pacing improves left ventricular function during simulated atrial fibrillation without mechanical dyssynchrony

Autor: Patrick J. Tchou, George E. Yanulis, David Verhaert, Don W. Wallick, Richard A. Grimm, Pascal Lim, Nicolas Lellouche, Neil L. Greenberg

Publikováno v: EP Europace. 12:430-436

Aims Electrical stimulation [coupled pacing (CP)] applied near the end of the T-wave is able to create a retrograde activation of the atrioventricular (AV) node in turn to prevent rapid ventricular conduction during atrial fibrillation (AF). The impa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::696e0963970bdedcca33db7aa0376f71
https://doi.org/10.1093/europace/eup440

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Non-invasive assessment of left ventricular relaxation during atrial fibrillation using mitral flow propagation velocity

Autor: Richard A. Grimm, Shaowei Zhuang, Neil L. Greenberg, Youhua Zhang, Tomotsugu Tabata, Todor N. Mazgalev, James D. Thomas, Mario J. Garcia, Kent A. Mowrey, Yong Jin Kim, Junko Asada-Kamiguchi, Zoran B. Popović, Don W. Wallick

Publikováno v: European Journal of Echocardiography. 10:826-832

Aims To elucidate the usefulness of the early diastolic mitral flow propagation velocity (Vp) obtained from colour M-mode Doppler for non-invasively assessing left-ventricular (LV) relaxation during atrial fibrillation (AF). Methods and results Ten h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3cafa2b3fc14c77b17cbd06cb8d185d8
https://doi.org/10.1093/ejechocard/jep083

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Use of Conventional Dual Chamber Pacemakers With Custom Lead Adapters to Induce Atrial Fibrillation or Heart Failure in Dogs

Autor: George E. Yanulis, Don W. Wallick, Elizabeth Ching, Kiyotaka Fukamachi, Faruk Cingoz

Publikováno v: The Annals of Thoracic Surgery. 83:1858-1862

Purpose The purpose of this article is to show how custom "Y"-lead adapters and standard dual-chamber pacemakers can be used to produce pacing paradigms that will lead to stable experimental models of heart failure and atrial fibrillation. Descriptio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2351d1141075f1e8f91705607011a5c
https://doi.org/10.1016/j.athoracsur.2006.10.102

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Coupled pacing improves cardiac efficiency during acute atrial fibrillation with or without cardiac dysfunction

Autor: Hirotsugu Yamada, James D. Thomas, William Kowalewski, Zoran B. Popović, David O. Martin, Kent A. Mowrey, Don W. Wallick

Publikováno v: American Journal of Physiology-Heart and Circulatory Physiology. 287:H2016-H2022

Coupled pacing (CP), a method for controlling ventricular rate during atrial fibrillation (AF), consists of a single electrical stimulation applied to the ventricles after each spontaneous activation. CP results in a mechanical contraction rate appro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f39a09f1e8a840937ac7c926851f427
https://doi.org/10.1152/ajpheart.00347.2004

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Slow rate during AF improves ventricular performance by reducing sensitivity to cycle length irregularity

Autor: Richard A. Grimm, Youhua Zhang, James D. Thomas, Shaowei Zhuang, Todor N. Mazgalev, Kent A. Mowrey, Zoran B. Popović, Tomotsugu Tabata, Don W. Wallick

Publikováno v: American Journal of Physiology-Heart and Circulatory Physiology. 283:H2706-H2713

Atrial fibrillation (AF) is characterized by short and irregular ventricular cycle lengths (VCL). While the beneficial effects of heart rate slowing (i.e., the prolongation of VCL) in AF are well recognized, little is known about the impact of irregu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::085fe62c13426245b0dec1edfafa75a4
https://doi.org/10.1152/ajpheart.00571.2002

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Denervation of vagal cardiopulmonary receptors by injection of kainic acid into the nodose ganglia in dogs

Autor: Marc D. Thames, Don W. Wallick, Sherry S. Stuesse, Mark E. Dunlap

Publikováno v: Autonomic Neuroscience. 102:85-89

We determined if kainic acid, a neuroexcitotoxin, could be used to denervate the cell bodies of cardiopulmonary vagal sensory neurons. Kainic acid (5 μg) was injected into the nodose ganglion of five dogs. Ten to fourteen days following this procedu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::666704c5cffaceac44c6910730858c4f
https://doi.org/10.1016/s1566-0702(02)00176-5

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Nonexcitatory Stimulus Delivery Improves Left Ventricular Function in Hearts with Left Bundle Branch Block

Autor: Eduardo B. Saad, Don W. Wallick, Yung Jin Kim, Nassir F. Marrouche, Andrea Natale, Walid Saliba, Stephen Pavia, Shaowei Zhuang, Robert A. Schweikert, Patrick J. Tchou, Tomotsugu Tabata, Ahmad Abdul-Karim

Publikováno v: Journal of Cardiovascular Electrophysiology. 13:691-695

Nonexcitatory Stimulation.Introduction: Preliminary data in a heart failure animal model and isolated muscle preparation have suggested that nonexcitatory stimulation (NES) improves left ventricular (LV) function. Methods and Results: We compared biv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea9ab620999b45627e019090fc5cb37f
https://doi.org/10.1046/j.1540-8167.2002.00691.x

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Assessment of LV systolic function in atrial fibrillation using an index of preceding cardiac cycles

Autor: James D. Thomas, Tomotsugu Tabata, Todor N. Mazgalev, Richard A. Grimm, Deborah A. Agler, Don W. Wallick, Kent A. Mowrey, Youhua Zhang, Neil Greenberg, Shaowei Zhuang

Publikováno v: American Journal of Physiology-Heart and Circulatory Physiology. 281:H573-H580

The clinical assessment of left ventricular (LV) systolic function during atrial fibrillation (AF) is unreliable and difficult because of beat-to-beat variability. We evaluated an index for the estimation of LV systolic function in AF that is based o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b81ac70b8ca339ca216536637629d3a
https://doi.org/10.1152/ajpheart.2001.281.2.h573

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[Untitled]

Autor: Stuart Allen, Timothy R. Betts, Shaowei Zhuan, Jan Ewert, Kent A. Mowrey, Donald G. Hills, Todor N. Mazgalev, John M. Morgan, Youhua Zhang, Don W. Wallick, Paul R. Roberts

Publikováno v: Journal of Interventional Cardiac Electrophysiology. 5:495-503

Auxiliary shocks (AS) from electrodes sutured to the left ventricle (LV) prior to primary biphasic shocks (PS) have been shown to reduce defibrillation thresholds (DFT). Two capacitors are required to generate these waveforms. We investigate delivery

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ed388fbbdeb01cf1768b97b36529277d
https://doi.org/10.1023/a:1013266600072

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