Instantaneous force-velocity-length relations in the intact human heart.
作者： Wilmer W. Nichols , C.Richard Conti , Carl J. Pepine
DOI: 10.1016/0002-9149(77)90193-X
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摘要: Abstract The contractile state of the left ventricle was analyzed in 10 patients using measurements instantaneous ascending aortic blood flow velocity, ventricular pressure and end-diastolic volume. Instantaneous volume at msec intervals derived by subtracting cumulative volumes (integral flow) ejected during each sampling interval from angiographically Circumferential fiber shortening velocity wall force were calculated as rate/4πr 2 × πr , respectively. radius (r) assuming a spherical model for ventricle. Applying Hill muscle contraction, element sum circumferential series elastic velocity. Series time rate change (dF/dt) stiffness. force-velocity-length relations clearly different five with normal function (Group I) those impaired II). Peak averaged 28.2 cm/sec or 1.35 circumferences per second (circ/sec) Group I 19.4 ( P
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sci-hub.se 参考文章(19)
Harold Sandler, Harold T. Dodge, The use of single plane angiocardiograms for the calculation of left ventricular volume in man. American Heart Journal. ,vol. 75, pp. 325- 334 ,(1968) , 10.1016/0002-8703(68)90089-6
Herbert J. Levine, Naphtali A. Britman, FORCE-VELOCITY RELATIONS IN THE INTACT DOG HEART. Journal of Clinical Investigation. ,vol. 43, pp. 1383- 1396 ,(1964) , 10.1172/JCI105014
KIRK L. PETERSON, JOHN B. UTHER, RALPH SHABETAI, EUGENE BRAUNWALD, Assessment of Left Ventricular Performance in Man Instantaneous Tension-Velocity-Length Relations Obtained with the Aid of an Electromagnetic Velocity Catheter in the Ascending Aorta Circulation. ,vol. 47, pp. 924- 935 ,(1973) , 10.1161/01.CIR.47.5.924
JOEL S. KARLINER, JAMES H. GAULT, DWAIN ECKBERG, CHARLES B. MULLINS, JOHN ROSS, Mean Velocity of Fiber Shortening A Simplified Measure of Left Ventricular Myocardial Contractility Circulation. ,vol. 44, pp. 323- 333 ,(1971) , 10.1161/01.CIR.44.3.323
James W. Covell, Roger R. Taylor, Edmund H. Sonnenblick, John Ross, Series elasticity in the intact heart. Evidence for the application of the Hill model for muscle to the intact left ventricle. Pflügers Archiv: European Journal of Physiology. ,vol. 357, pp. 225- 236 ,(1975) , 10.1007/BF00585977
JAMES H. GAULT, JOHN ROSS, EUGENE BRAUNWALD, Contractile State of the Left Ventricle in Man: Instantaneous Tension-Velocity-Length Relations in Patients With And Without Disease of the Left Ventricular Myocardium Circulation Research. ,vol. 22, pp. 451- 463 ,(1968) , 10.1161/01.RES.22.4.451
Joseph C. Greenfield, Dali J. Patel, Relation between pressure and diameter in the ascending aorta of man. Circulation Research. ,vol. 10, pp. 778- 781 ,(1962) , 10.1161/01.RES.10.5.778
The heat of shortening and the dynamic constants of muscle Proceedings of The Royal Society B: Biological Sciences. ,vol. 126, pp. 136- 195 ,(1938) , 10.1098/RSPB.1938.0050
W W Nichols, C R Conti, W E Walker, W R Milnor, Input Impedance of the Systemic Circulation in Man Circulation Research. ,vol. 40, pp. 451- 458 ,(1977) , 10.1161/01.RES.40.5.451
JAMES F. SPANN, ROBERT A. BUCCINO, EDMUND H. SONNENBLICK, EUGENE BRAUNWALD, Contractile State of Cardiac Muscle Obtained from Cats with Experimentally Produced Ventricular Hypertrophy and Heart Failure Circulation Research. ,vol. 21, pp. 341- 354 ,(1967) , 10.1161/01.RES.21.3.341