H
Henry M. Spotnitz
Researcher at Columbia University
Publications - 164
Citations - 3612
Henry M. Spotnitz is an academic researcher from Columbia University. The author has contributed to research in topics: Cardiac output & Ventricle. The author has an hindex of 33, co-authored 164 publications receiving 3528 citations. Previous affiliations of Henry M. Spotnitz include New York Medical College & National Institutes of Health.
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Journal ArticleDOI
Stress Distribution in the Canine Left Ventricle during Diastole and Systole
Daniel D. Streeter,Ramesh N. Vaishnav,Dali J. Patel,Henry M. Spotnitz,John Ross,Edmund H. Sonnenblick +5 more
TL;DR: A model is proposed for stress analysis of the left ventricular wall (LV wall) based on the realistic assumption that the myocardium is essentially composed of fiber elements which carry only axial tension and vary in orientation through the wall.
Journal ArticleDOI
Does Blood Flow Through Holmium:YAG Transmyocardial Laser Channels?
Takushi Kohmoto,Peter E. Fisher,Anguo Gu,Shu-Ming Zhu,Osvaldo J. Yano,Henry M. Spotnitz,Craig R. Smith,Daniel Burkhoff +7 more
TL;DR: Transmyocardial blood flow does not appear to occur through channels made with the holmium:yttrium-aluminum garnet laser, and it remains to be determined whether this is the case with other types of lasers.
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Heart reduction surgery: an analysis of the impact on cardiac function.
TL;DR: This analysis revealed that changes in parameters of ventricular function have different implications during heart reduction surgery than when such changes are observed with inotropism caused by acute pharmacologic therapy.
Journal ArticleDOI
Cellular basis for volume related wall thickness changes in the rat left ventricle.
Henry M. Spotnitz,Henry M. Spotnitz,William D. Spotnitz,William D. Spotnitz,Thomas S. Cottrell,Thomas S. Cottrell,David Spiro,David Spiro,Edmund H. Sonnenblick,Edmund H. Sonnenblick +9 more
TL;DR: Nine arrested rat hearts fixed by glutaraldehyde perfusion of the coronary arteries were studied in vertical cross-sections of the left ventricle by phase contrast microscopy and changes in wall thickness are mainly accounted for by internal rearrangement of the disposition of fibers composing the ventricular wall.
Journal ArticleDOI
The Ultrastructure of the Heart in Systole and Diastole
TL;DR: The relations between ultrastructure and function have been examined in the canine left ventricle under known hemodynamic conditions and the importance of dispersion of sarcomere length within a given layer of the ventricular wall was noted and its potential significance discussed.