Search Results - "Gabel, Marjorie"

Influence of acutely altered loading conditions on left atrial appendage flow velocities by Hoit, Brian D., Shao, Yanfu, Gabel, Marjorie

“…Objectives. The purpose of this study was to identify the effects of altered loading conditions on left atrial appendage flow velocities. Background. Although…”
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Left atrial systolic and diastolic function accompanying chronic rapid pacing-induced atrial failure by Hoit, B D, Shao, Y, Gabel, M

“…The objective of this study was to examine the hypothesis that long-term, rapid atrial pacing produces a model of atrial systolic and diastolic dysfunction but…”
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Mechanisms of antiarrhythmic drug-induced changes in defibrillation threshold: Role of potassium and sodium channel conductance by Ujhelyi, Michael R., Schur, Michael, Frede, Thomas, Bottorff, Michael B., Gabel, Marjorie, Markel, Michael L.

“…Objectives.We sought to determine which ion current predominantly affects defibrillation outcomes by using specific pharmacologic probes (lidocaine [a sodium…”
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Influence of hypertonic saline solution infusion on defibrillation efficacy by Ujhelyi, M R, Winecoff, A P, Schur, M, Frede, T, Bottorff, M B, Gabel, M, Markel, M L

“…Hypertonic saline solution may enhance cardiac conduction via the fast inward sodium channel and alter transmembrane Ca+2 conductance via the sodium-calcium…”
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Influence of left ventricular dysfunction on the role of atrial contraction: An echocardiographic-hemodynamic study in dogs by HOIT, Brian D, GABE, Marjorie

“…The purpose of this study was to understand the significance of an effective atrial systole and the interactions between atrial and ventricular function. The…”
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Influence of left ventricular dysfunction on the role of atrial contraction by Hoit, Brian D, Gabel, Marjorie

“…OBJECTIVES The purpose of this study was to understand the significance of an effective atrial systole and the interactions between atrial and ventricular…”
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Remodeling of the left atrium in pacing-induced atrial cardiomyopathy by Hoit, Brian D, Takeishi, Yasuchika, Cox, Michael J, Gabel, Marorie, Kirkpatrick, Darryl, Walsh, Richard A, Tyagi, Suresh C

“…Rapid atrial pacing produces atrial systolic and diastolic failure characterized by absent atrial booster pump function, increased atrial chamber stiffness,…”
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Effects of thyroid hormone on cardiac β-adrenergic responsiveness in conscious baboons by HOIT, B. D, KHOURY, S. F, SHAO, Y, GABEL, M, LIGGETT, S. B, WALSH, R. A

“…Many of the cardiovascular manifestations of thyroid hormone excess resemble those produced by sympathoadrenal stimulation. The objective of this study was to…”
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In vivo assessment of left atrial contractile performance in normal and pathological conditions using a time-varying elastance model by HOIT, B. D, YANFU SHAO, GABEL, M, WALSH, R. A

“…Contractile function of the ex vivo, isolated left atrium (LA) has been described by a time-varying elastance, but this atrial chamber property has not been…”
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Altered Left Atrial Compliance After Atrial Appendectomy Influence on Left Atrial and Ventricular Filling by Hoit, Brian D, Shao, Yanfu, Tsai, Liang-Miin, Patel, Rashmi, Gabel, Marorie, Walsh, Richard A

“…Previous studies have shown regional differences in atrial distensibility. We studied 12 open-chest dogs to test the hypothesis that left atrial compliance is…”
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Effects of angiotensin II generated by an angiotensin converting enzyme-independent pathway on left ventricular performance in the conscious baboon by Hoit, B D, Shao, Y, Kinoshita, A, Gabel, M, Husain, A, Walsh, R A

“…Human chymase is a serine proteinase that converts angiotensin (Ang) I to Ang II independent of angiotensin converting enzyme (ACE) in vitro. The effects of…”
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Effects of thyroid hormone on left ventricular performance and regulation of contractile and Ca(2+)-cycling proteins in the baboon. Implications for the force-frequency and relaxation-frequency relationships by Khoury, S F, Hoit, B D, Dave, V, Pawloski-Dahm, C M, Shao, Y, Gabel, M, Periasamy, M, Walsh, R A

“…The transcriptional, posttranscriptional, and related functional effects of thyroid hormone on primate myocardium are poorly understood. Therefore, we studied…”
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Differential effects of lidocaine on defibrillation threshold with monophasic versus biphasic shock waveforms by UJHELYI, M. R, SCHUR, M, FREDE, T, GABEL, M, MARKEL, M. L

“…Defibrillation waveforms and antiarrhythmic drugs have disparate effects on myocardial excitability and refractoriness, making it likely that antiarrhythmic…”
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Physiologic Indices of Calcium Cycling in Immature Goats with Pacing Induced Heart Failure † 85 by Banerjee, Anirban, Shao, Yanfu, Gabel, Marjorie, Hoit, Brian D

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Effect of congestive heart failure on in vivo canine aortic elastic properties by Khan, Zia, Millard, Ronald W., Gabel, Marjorie, Walsh, Richard A., Hoit, Brian D.

“…Objectives. The aim of this study was to characterize fully in vivo aortic compliance over a wide range of passive distending pressures, and to study…”
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Influence of loading conditions and contractile state on pulmonary venous flow : validation of doppler velocimetry by HOIT, B. D, SHAO, Y, GABEL, M, WALSH, R. A

“…Although recent studies suggest that pulmonary venous flow velocities may be used to evaluate left ventricular diastolic function, the influence of loading…”
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Left atrial mechanical and biochemical adaptation to pacing induced heart failure by Hoit, B D, Shao, Y, Gabel, M, Walsh, R A

“…To determine the left atrial mechanical and biochemical adaptations to congestive heart failure, 10 dogs with rapid atrial and ventricular pacing and seven…”
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Physiologic and Molecular Changes Reflecting Impaired Calcium Cycling in Pacing Induced Heart Failure in Immature Goats ♦ 83 by Banerjee, Anirban, Shah, Sonali, Joshi, Preeti, Gabel, Marjorie, Hoit, Brain D, Kranias, Evangelia G

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Pacing induced heart failure in immature goats: Physiologic and molecular changes reflect impaired calcium cycling by sarcoplasmic reticulum by Banerjee, Anirban, Joshi, Preeti, Gabel, Marjorie, Harrer, Judy M., Kranias, Evangelia G., Hoit, Brian D.

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Flow Versus Uptake Comparisons of Thallium-201 with Technetium-99m Perfusion Tracers in a Canine Model of Myocardial Ischemia by Meleca, Michael J, McGoron, Anthony J, Gerson, Myron C, Millard, Ronald W, Gabel, Marjorie, Biniakiewicz, Danuta, Roszell, Nancy J, Walsh, Richard A

“…We investigated the myocardial flow kinetics of six putative radioperfusion agents (99mTc-Q3, 99mTc-Q4, 99mTc-Q12, 99mTc-sestamibi, 99mTc-tetrofosmin and…”
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