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H. Klopfenstein · SciRah

Researcher profile · Semantic Scholar

H. Klopfenstein

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H. Klopfenstein — researcher profile on SciRah

h-index: 23
Works: 48
Citations: 2,812

Most-cited papers

Estrogen modulates responses of atherosclerotic coronary arteries.
J. K. Williams, M. Adams, H. Klopfenstein
1990Circulation648 citations Open access
Semantic Scholar
Sex, age, and disease affect echocardiographic left ventricular mass and systolic function in the free-living elderly. The Cardiovascular Health Study.
J. M. Gardin, D. Siscovick, H. Anton-Culver, James C. Lynch +6 more
1995Circulation270 citations
Semantic Scholar
Right ventricular and right atrial collapse in patients with cardiac tamponade--a combined echocardiographic and hemodynamic study.
Sanjay Singh, L. Wann, Gregory H. Schuchard, H. Klopfenstein +3 more
1984Circulation263 citations Open access
Semantic Scholar
Postnatal Changes in the Circulation and Responses to Volume Loading in Sheep
H. Klopfenstein, A. Rudolph
1978Circulation Research184 citations Open access
Semantic Scholar
Preferential Distribution of Inhibitory Cardiac Receptors with Vagal Afferents to the Inferoposterior Wall of the Left Ventricle Activated during Coronary Occlusion in the Dog
Marc D. Thames, H. Klopfenstein, F. Abboud, Allyn L. Mark +1 more
1978Circulation Research172 citations Open access
Semantic Scholar
Left ventricular diastolic filling in the elderly: the cardiovascular health study.
J. M. Gardin, A. Arnold, D. Bild, Vivienne-Elizabeth Smith +3 more
1998American Journal of Cardiology146 citations
Semantic Scholar
The hemodynamic derangement associated with right ventricular diastolic collapse in cardiac tamponade: an experimental echocardiographic study.
P. Leimgruber, H. Klopfenstein, L. Wann, H. Brooks
1983Circulation129 citations Open access
Semantic Scholar
The influence of preload and heart rate on Doppler echocardiographic indexes of left ventricular performance: comparison with invasive indexes in an experimental preparation.
Kenneth Wallmeyer, L. Wann, K. Sagar, J. Kalbfleisch +1 more
1986Circulation127 citations Open access
Semantic Scholar
Left ventricular mass in the elderly. The Cardiovascular Health Study.
J. M. Gardin, A. Arnold, J. Gottdiener, N. D. Wong +5 more
1997HYPERTENSION126 citations
Semantic Scholar
Pleural Effusion as a Cause of Right Ventricular Diastolic Collapse
K. Vaska, L. Wann, K. Sagar, H. Klopfenstein
1992Circulation93 citations Open access
Semantic Scholar
Mixed venous blood gases are superior to arterial blood gases in assessing acid-base status and oxygenation during acute cardiac tamponade in dogs.
D. Mathias, Philip S. Clifford, H. Klopfenstein
1988Journal of Clinical Investigation69 citations Open access
Semantic Scholar
Restraining effect of intact pericardium during acute volume loading.
Robert J. Applegate, William E. Johnston, J. Vinten-Johansen, H. Klopfenstein +1 more
1992American Journal of Physiology66 citations
Semantic Scholar
Alterations in intravascular volume affect the relation between right ventricular diastolic collapse and the hemodynamic severity of cardiac tamponade.
H. Klopfenstein, T. L. Cogswell, G. Bernath, L. Wann +5 more
1985Journal of the American College of Cardiology55 citations Open access
Semantic Scholar
The relative merits of pulsus paradoxus and right ventricular diastolic collapse in the early detection of cardiac tamponade: an experimental echocardiographic study.
H. Klopfenstein, Gregory H. Schuchard, L. Wann, Thomas E. Palmer +4 more
1985Circulation51 citations Open access
Semantic Scholar
Estrogen modulates responses of atherosclerotic coronary arteries : Circulation 1990 81/5 (1680–1687)
J. K. Williams, Michael R. Adams, H. Klopfenstein
199147 citations
Semantic Scholar
Preferential distribution of inhbititory cardiac receptors in left ventricle of the dog.
John L. Walker, M. Thames, F. Abboud, A. Mark +1 more
1978American Journal of Physiology46 citations
Semantic Scholar
Effect of dynamic exercise on left atrial function in conscious dogs.
Yasuhiro Nishikawa, James P. Roberts, P. Tan, C. Klopfenstein +1 more
1994Journal of Physiology38 citations Open access
Semantic Scholar
The shift in the relationship between intrapericardial fluid pressure and volume induced by acute left ventricular pressure overload during cardiac tamponade.
T. L. Cogswell, G. Bernath, M. Keelan, L. Wann +1 more
1986Circulation33 citations Open access
Semantic Scholar
Nonthoracotomy internal defibrillation in dogs: threshold reduction using a subcutaneous chest wall electrode with a transvenous catheter electrode.
J. Wetherbee, P. Chapman, H. Klopfenstein, Stanley M. Bach +1 more
1987Journal of the American College of Cardiology30 citations Open access
Semantic Scholar
The effect of changes in afterload on Doppler echocardiographic indexes of left ventricular performance.
Kenneth Wallmeyer, L. Wann, K. Sagar, Peter Czakanski +2 more
1988Journal of the American Society of Echocardiography29 citations
Semantic Scholar
Effects of intravascular volume state on the value of pulsus paradoxus and right ventricular diastolic collapse in predicting cardiac tamponade.
T. L. Cogswell, G. Bernath, L. Wann, Raymond G. Hoffman +2 more
1985Circulation25 citations Open access
Semantic Scholar
Effect of vasopressin on left ventricular performance.
Che-Ping Cheng, Y. Igarashi, H. Klopfenstein, Robert J. Applegate +2 more
1993American Journal of Physiology23 citations
Semantic Scholar
External pressure of undisturbed left ventricle.
Robert J. Applegate, W. Santamore, H. Klopfenstein, W. Little
1990American Journal of Physiology23 citations
Semantic Scholar
Total peripheral resistance during cardiac tamponade: adrenergic and angiotensin roles.
T. L. Cogswell, G. Bernath, Hershel Raff, Raymond G. Hoffmann +1 more
1986American Journal of Physiology15 citations
Semantic Scholar
Influences on the distribution of blood flow during cardiac tamponade in the conscious dog.
G. Bernath, T. L. Cogswell, Raymond G. Hoffman, H. Klopfenstein
1987Circulation Research11 citations Open access
Semantic Scholar
807-1 Congestive Heart Failure with Preserved Systolic Function in a Large Community-Dwelling Elderly Cohort: The Cardiovascular Health Study
J. Gardin, A. Arnold, D. Kitzman, V. Smith +3 more
199510 citations Open access
Semantic Scholar
Influence of naloxone on response to acute cardiac tamponade in conscious dogs.
H. Klopfenstein, D. Mathias
1990American Journal of Physiology10 citations
Semantic Scholar
Evaluation of a percutaneous catheter technique for ablation of ventricular tachycardia in a canine model.
P. Chapman, H. Klopfenstein, P. Troup, Harold L. Brooks
1985American Heart Journal9 citations
Semantic Scholar
Accelerated myocardial relaxation in conscious dogs during acute cardiac tamponade.
Y. Nishikawa, J. P. Roberts, M. Talcott, R. C. Dysko +2 more
1994American Journal of Physiology7 citations
Semantic Scholar
Coronary artery hemodynamics in conscious dog during cardiac tamponade.
H. Klopfenstein, G. Bernath, T. L. Cogswell, L. E. Boerboom
1987Circulation Research7 citations Open access
Semantic Scholar
Baboon tolerance to linear deceleration (-gx): lap belt restraint
Thomas D. Clarke, James F. Sprouffske, Edwin M. Trout, H. Klopfenstein +3 more
19707 citations
Semantic Scholar
The effect of regional myocardial ischemia on Doppler echocardiographic indexes of left ventricular performance: influence of heart rate, aortic blood pressure, and the size of the ischemic zone.
D. Mathias, L. Wann, K. Sagar, H. Klopfenstein
1988American Heart Journal6 citations
Semantic Scholar
Catheter ablation: Relationship of defibrillator waveform to the production of postshock ventricular tachyarrhythmias and myocardial damage
P. Chapman, J. Wetherbee, P. Troup, H. Klopfenstein
1987Clinical Cardiology6 citations Open access
Semantic Scholar
Evaluation of the Lap Belt, Air Bag, and Air Force Restraint Systems During Impact with Living Human Sled Subjects
C. Gragg, C. D. Bendixen, Thomas D. Clarke, H. Klopfenstein +1 more
19706 citations
Semantic Scholar
Intraoperative diagnosis of left atrial myxoma.
R. Brooker, J. Butterworth, H. Klopfenstein
1995Anesthesia and Analgesia5 citations Open access
Semantic Scholar
Effect of acute cardiac tamponade on left ventricular pressure-volume relations in anaesthetised dogs.
William E. Johnston, J. Vinten-Johansen, H. Klopfenstein, W. Santamore +1 more
1990Cardiovascular Research5 citations
Semantic Scholar
Increasing atrial pressure during cardiac tamponade does not elevate plasma levels of the peptide ANP in conscious dogs.
H. Klopfenstein, D. Mathias, G. Bernath, T. L. Cogswell
1990Journal of Physiology4 citations Open access
Semantic Scholar
Regional distribution of blood flow at the onset of right ventricular diastolic collapse during cardiac tamponade.
G. Bernath, T. L. Cogswell, T. M. Shimshak, D. Warltier +1 more
1987American Heart Journal4 citations
Semantic Scholar
Changes in circulating blood volume influence aortic characteristic impedance in awake dogs.
D. A. Stone, J. Dujardin, H. Klopfenstein, H. Brooks +1 more
1984American Journal of Physiology4 citations
Semantic Scholar
The Pathophysiology of Pericardial Disease—Contributions Derived from Echocardiography/Doppler Studies in Animal Models
H. Klopfenstein
1990Echocardiography2 citations
Semantic Scholar
Calculation, processing and graphic analysis of tissue blood flow and oxygen consumption using the radio-labeled microsphere technique
P. Tan, J. Vinten-johansen, H. Klopfenstein
1992Proceedings Computers in Cardiology1 citations
Semantic Scholar
Cardiac tamponade: current pathophysiological and diagnostic views
H. Klopfenstein
19901 citations
Semantic Scholar
Filling characteristics of left ventricle in newborn lambs.
H. Velvis, H. Klopfenstein
1995American Journal of Physiology0 citations
Semantic Scholar
Transient depression of cardiac function after deep hypothermic circulatory arrest in newborn lambs
H. Velvis, Michael H. Hines, H. Klopfenstein, D. Berry +1 more
19950 citations
Semantic Scholar
EFFECT OF CARDIAC TAMPONADE ON LEFT VENTRICULAR CONTRACTILITY
W. E. Johnston, J. Vinten-johansen, H. Klopfenstein, W. Santamore +1 more
19880 citations
Semantic Scholar
Mixed venous blood gases and superior to arterial blood gases in assessing tissue acid base status and oxygenation during cardiac tamponade in conscious dogs
D. Mathias, H. Klopfenstein
19870 citations
Semantic Scholar
Theshift intherelationship between intrapericardial fluid pressureandvolume induced byacuteleft ventricular pressure
T. L. Cogswell, L. Samuelwann, H. Klopfenstein
19860 citations
Semantic Scholar
Effects ofintravascular volumestate on thevalueof pulsus paradoxus andright ventricular diastolic collapse inpredicting cardiac tamponade
T. L. Cogswell, L. Samuelwann, H. Klopfenstein
19850 citations
Semantic Scholar

Frequent co-authors

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T. L. Cogswell×10
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