Journal ArticleDOI
Hemodynamic changes at rest and during exercise in patients with aortic stenosis of varying severity
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TLDR
In patients with severe stenosis (Group III), cardiac output and stroke volume were significantly decreased, heart volume and pulmonary vascular resistance were increased, and the left ventricular function assessed by the LVEDP and stroke work or the coefficient of the stroke volume and heart volume was depressed.About:
This article is published in American Heart Journal.The article was published on 1970-03-01. It has received 39 citations till now. The article focuses on the topics: Stroke volume & Cardiac output.read more
Citations
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Journal ArticleDOI
Long-term follow-up after isolated aortic valve replacement
TL;DR: Actuarial analysis of prosthetic valve-related death and complications suggest that the porcine xenograft valve is an excellent choice for aortic valve replacement.
Journal ArticleDOI
Blood pressure, heart rate, pressure-rate product and electrocardiographic changes in healthy children during treadmill exercise
TL;DR: These data establish for clinical use reference values for children during treadmill exercise for heart rate, systolic and diastolic blood pressure, rate-pressure product and electrocardiographic changes.
Journal ArticleDOI
Determinants and Functional Significance of Myocardial Perfusion Reserve in Severe Aortic Stenosis
Christopher D Steadman,Michael Jerosch-Herold,Benjamin Grundy,Suzanne Rafelt,Leong L. Ng,Iain B. Squire,Nilesh J. Samani,Nilesh J. Samani,Gerry P McCann,Gerry P McCann +9 more
TL;DR: LV remodeling appears to be a more important determinant of impaired MPR than stenosis severity per se, and CMR-quantified MPR is independently associated with aerobic exercise capacity in severe AS.
Journal ArticleDOI
Surgery for acquired valvular heart disease. 1.
TL;DR: The value to the patient of valve repair or replacement is determined by the resulting improvement in length and quality of life over that imposed by the natural history of the disease.
Journal ArticleDOI
Systemic and left ventricular responses to exercise stress in asymptomatic patients with valvular aortic stenosis
Christopher A. Clyne,James A. Arrighi,Barry J. Maron,Vasken Dilsizian,Robert O. Bonow,Richard O. Cannon +5 more
TL;DR: Patients with heart disease may have myocardial ischemia or left ventricular (LV) dysfunction without symptoms without symptoms and asymptomatic patients with valvular aortic stenosis were studied using treadmill testing, thallium-201 scintigraphy and radionuclide angiography.
References
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Journal ArticleDOI
Hydraulic formula for calculation of the area of the stenotic mitral valve, other cardiac valves, and central circulatory shunts. I
Richard Gorlin,S.G. Gorlin +1 more
TL;DR: Standard hydrokinetic orifice formulas applied to stenotic mitral, pulmonic, tricuspid, and aortic valves, patent ductus arteriosus, and atrial and ventricular septal defects present an objective evaluation of surgical procedures designed to widen stenotic orifices or to abolish abnormal shunts.
Journal ArticleDOI
Relationships between left ventricular ejection time, stroke volume, and heart rate in normal individuals and patients with cardiovascular disease.
Arnold M. Weissler,Arnold M. Weissler,Robert G. Peeler,Robert G. Peeler,Walter H. Roehll,Walter H. Roehll +5 more
TL;DR: The present observations on temporal phenomena in cardiac ejection suggests the practical application of these techniques in the evaluation of patients with various cardiovascular disorders.
Journal ArticleDOI
Studies on Starling's Law of the Heart
TL;DR: Evidence was presented that in intact human subjects the characteristics of left atrial and left ventricular contraction are functions of the pressures in these chambers prior to the onset of their contraction, thus lending further support to the concept that Starling9s law is operative in the human heart.
Journal ArticleDOI
The effect of body position on the circulation at rest and during exercise, with special reference to the influence on the stroke volume.
TL;DR: In 10 healthy, adult, male subjects the hemodynamics have been studied by the aid of heart catheterization at rest and during work both in supine and sitting positions, and the physical working capacity (work performed per heart beat) was of the same order.
Related Papers (5)
Hydraulic formula for calculation of the area of the stenotic mitral valve, other cardiac valves, and central circulatory shunts. I
Richard Gorlin,S.G. Gorlin +1 more