Charles Hellman
University of Wisconsin-Madison
9 Papers
203 Citations
Charles Hellman is an academic researcher from University of Wisconsin-Madison. The author has contributed to research in topics: Radionuclide angiography & Ejection fraction. The author has an hindex of 8, co-authored 9 publications.
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Papers
Comparative analysis of physiologic responses to three different maximal graded exercise test protocols in healthy women
TL;DR: Comparisons of active and sedentary groups showed differences in VO2 max and submaximal HR and recovery HR at common minutes; however, the rate of increase in HR and systolic BP during exercise and the rates of decrease during recovery were not significantly different.
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Left ventricular function during sudden strenuous exercise.
Carl Foster,James D. Anholm,Charles Hellman,John E. Carpenter,Michael L. Pollock,Donald H. Schmidt +5 more
TL;DR: The hypothesis that subendocardial ischemia is an important mechanism in the response to sudden strenuous exercise (SSE) is supported, and the lack of ECG changes and segmental wall motion abnormalities and the relatively high absolute value of the LV ejection fraction suggest that if subend Cardiac Ischemia occurs during SSE, it is attributable to physiologic rather than pathologic mechanisms.
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Isoproterenol-induced flow responses in mammary and vein bypass grafts.
TL;DR: The data suggest that mammary grafts produce the same flow response to the increased demand of isoproterenol as do vein bypasses and the normal circulation, as long as the distal bed perfused is to normal muscle.
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Improvement in left ventricular function after myocardial revascularization Assessment by first-pass rest and exercise nuclear angiography
Charles Hellman,M. Laxman Kamath,Donald H. Schmidt,James D. Anholm,Fred M. Blau,W. Dudley Johnson +5 more
TL;DR: The data demonstrate that myocardial revascularization does improve ventricular function by abolishing exercise-induced evidence of ischemia (decreased EF, increased EDV, and ERWMD) as assessed by radionuclide angiography.
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•Journal Article
Bypass graft surgery in severe left ventricular dysfunction.
TL;DR: Left ventricular function at rest and during exercise can be improved by myocardial revascularization in the patient with coronary artery disease and severe left ventricular dysfunction.
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