Zobrazeno 1 - 10
of 30
pro vyhledávání: '"D. L. Rollins"'
Publikováno v:
American Journal of Physiology-Heart and Circulatory Physiology. 271:H2536-H2546
To study transmembrane potential (Vm) changes (delta Vm) caused by extracellular field stimulation, Vm was recorded in 10 guinea pig papillary muscles by a double-barrel microelectrode. A 10-ms shock was delivered during the action potential plateau
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44ccc1f294f8a335b2d316892b4c8957
https://doi.org/10.1152/ajpheart.1996.271.6.h2536
https://doi.org/10.1152/ajpheart.1996.271.6.h2536
Publikováno v:
Pacing and Clinical Electrophysiology. 19:945-954
BACKGROUND In this study, we examined the effect of changing capacitor values between phases of a biphasic waveform with the goal of lowering leading edge voltage (LEV), total delivered energy (TDE), and total stored energy (TSE). METHODS Defibrillat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b710dd6e2f395c50309879f22409049b
https://doi.org/10.1111/j.1540-8159.1996.tb03391.x
https://doi.org/10.1111/j.1540-8159.1996.tb03391.x
Autor:
Raymond E. Ideker, Robert G. Walker, Masahiro Usui, Gregory P. Walcott, D. L. Rollins, Bruce H. Kenknight, William M. Smith
Publikováno v:
Pacing and Clinical Electrophysiology. 18:2008-2016
Some patients cannot receive a transvenous lead system because of high defibrillation thresholds (DFTs). We hypothesized that a right ventricular (RV) catheter electrode not extending as far as possible into the RV apex could cause high DFTs. Recentl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ace5f17fe0a5a6a203ec6c4a786a82bb
https://doi.org/10.1111/j.1540-8159.1995.tb03861.x
https://doi.org/10.1111/j.1540-8159.1995.tb03861.x
Autor:
Russell E. Hillsley, Raymond E. Ideker, Patrick D. Wolf, D. L. Rollins, William M. Smith, Kurt D. Bollacker, Michael D. Yarger, E.V. Simpson
Publikováno v:
Journal of Cardiovascular Electrophysiology. 6:471-485
Adrenergic Effects on VF. Introduction: We hypothesized that drugs which alter ventricular refractoriness or excitability produce quantifiable changes in ventricular fibrillation. Methods and Results: We used a 528-channel mapping system to quantify
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e92d065595f1425b135862d4003570d
https://doi.org/10.1111/j.1540-8167.1995.tb00420.x
https://doi.org/10.1111/j.1540-8167.1995.tb00420.x
Autor:
Changchun Ren, Daniel Kestler, D. L. Rollins, C. Piazza, Hope M. Amm, Peter D. Waite, Marina Gonçalves Diniz, Helen Rivera, Patricia DeVilliers, Mary MacDougall, Olga A. Mamaeva
Publikováno v:
Cells, tissues, organs. 194(2-4)
Odontogenic tumors occur within the jaw bones and may be derived from odontogenic epithelium or ectomesenchyme or contain active components of both tissue types. We investigated the gene expression profile of enamel matrix proteins (EMPs), genes rela
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87d1a4b2e10a86c88b66d772a704864a
https://pubmed.ncbi.nlm.nih.gov/21597274
https://pubmed.ncbi.nlm.nih.gov/21597274
Autor:
Raymond E. Ideker, D. L. Rollins, Xiaohong Zhou, Patrick D. Wolf, Warren Smith, Yohannes Afework
Publikováno v:
Circulation Research. 73:325-334
This study determined the response of action potentials during ventricular fibrillation (VF) to timed monophasic and biphasic shocks. A floating glass microelectrode was used to record intracellularly from the anterior right ventricle in 10 open-ches
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f1754c5d6f8d5a8aef51a3a56d67558
https://doi.org/10.1161/01.res.73.2.325
https://doi.org/10.1161/01.res.73.2.325
Autor:
Patrick D. Wolf, Raymond E. Ideker, Wanda Krassowska, Paul A. Guse, D. L. Rollins, William M. Smith
Publikováno v:
Pacing and Clinical Electrophysiology. 16:1719-1734
Previous studies have shown that low internal defibrillation thresholds (DFTs) can be attained by using two pairs of electrodes and combining biphasic shocks with sequential timing. The purpose of this two-part study was to test the defibrillation ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9253f213615f010a30e98e2d9839d56e
https://doi.org/10.1111/j.1540-8159.1993.tb01043.x
https://doi.org/10.1111/j.1540-8159.1993.tb01043.x
Publikováno v:
American Heart Journal. 124:1491-1500
Previous canine mapping studies of the transvenous defibrillation lead configuration of right ventricle (RV) to left R2 patch (P) revealed regions of low potential gradient in the left ventricular apex (A) and the right ventricular outflow tract (O).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98bb87f2f246458ef33e75fedb2a3e31
https://doi.org/10.1016/0002-8703(92)90062-z
https://doi.org/10.1016/0002-8703(92)90062-z
Autor:
Warren Smith, Xiaohong Zhou, Stephen B. Knisley, D. L. Rollins, Patrick D. Wolf, Raymond E. Ideker
Publikováno v:
Circulation Research. 68:1761-1767
Recent studies suggest that 1) electrically induced fibrillation and defibrillation involve prolongation of refractoriness by the shock in addition to stimulation and 2) biphasic waveforms are more efficient for defibrillation than are comparable mon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f56ba5de7509bfc342791a50ba8ab58f
https://doi.org/10.1161/01.res.68.6.1761
https://doi.org/10.1161/01.res.68.6.1761
Publikováno v:
Proceedings Computers in Cardiology.
A programmable constant current cardiac stimulator for use in a cardiac electrophysiology research lab has been implemented with a Macintosh II interfaced to voltage to current converters. The Macintosh II was equipped with three boards from National
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f87c19eafaf589c4eaf3fde17f808065
https://doi.org/10.1109/cic.1992.269524
https://doi.org/10.1109/cic.1992.269524