Combined effect of the force-frequency and length-tension mechanisms on left ventricular function in patients with dilated cardiomyopathy(309 views) Petretta M, Vicario ML, Spinelli L, Ferro A, Cuocolo A, Condorelli M, Bonaduce D
Eur J Heart Fail European Journal Of Heart Failure (ISSN: 1388-9842), 2002 Dec; 4(6): 727-735.
Department of Internal Medicine, Federico II University of Naples, 80131 Naples, Italy
Department of Nuclear Medicine, Federico II University of Naples, 80131 Naples, Italy
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Bowditch, H. P., Ber die eigentumlichkeith der reizbarkeit welche muskelfasern des herzens zeigen (1871) Ber Sachs Ges Akkad, 23, pp. 652-689
Blinks, J. R., Koch-Weser, J., Analysis of the effects of changes in rate and rhythm upon myocardial contractility (1961) J Pharmacol Exp Ther, 134, pp. 373-389
Feldman, M. D., Alderman, J. D., Aroesty, J. M., Depression of systolic and diastolic myocardial reserve during atrial pacing tachycardia in patients with dilated cardiomyopathy (1988) J Clin Invest, 82, pp. 1661-1669
Volpe, M., Rao, M. A. E., Cuocolo, A., Radionuclide monitoring of cardiac adaptations to volume loading in patients with dilated cardiomyopathy and mild heart failure. Effects of converting enzyme inhibition (1995) Circulation, 92, pp. 2511-2518
Tucci, P. J. F., Murad, N., Rossi, C. L., Nogueira, R. J., Santana O., Jr., Heart rate modulates the slow enhancement of contraction due to sudden left ventricular dilation (2001) Am J Physiol, 280, pp. H2136-H2143
Bairey, C. N., De Yang, L., Berman, D. S., Rozanski, A., Comparison of physiologic ejection fraction responses to activities of daily living: Implications for clinical testing (1990) J Am Coll Cardiol, 16, pp. 847-854
Norusis, M. J., (1994) SPSS for Windows. Advanced Statistics 6. 1, pp. 107-144. , Chicago, IL: SPSS
Bers, D. M., Calcium fluxes involved in control of cardiac myocyte contraction (2000) Circ Res, 87, pp. 275-281
Gwathmey, J. K., Copelas, L., MacKinnon, R., Abnormal intracellular calcium handling in myocardium from patients with end-stage heart failure (1987) Circ Res, 61, pp. 70-76
Allen, D. G., Kurihara, S., The effects of muscle length on intracellular calcium transients in mammalian cardiac muscle (1982) J Physiol (Lond), 327, pp. 79-84
Kentish, J. C., A role for the sarcolemmal Na+/H+ exchanger in the slow force response to myocardial stretch (1999) Circ Res, 85, pp. 658-660
Schwinger, R. H. G., B hm, M., Koch, A., The failing human heart is unable to use the Frank-Starling mechanism (1994) Circ Res, 74, pp. 959-969
Hajjar, R. J., Gwathmey, J. K., Cross-bridge dynamics in human ventricular myocardium. Regulation of contractility in the failing heart (1992) Circulation, 86, pp. 1819-1826
Hajjar, R. J., Schwinger, R. H. G., Schmidt, U., Myofilament calcium regulation in human myocardium (2000) Circulation, 101, pp. 1679-1685
Gwathmey, J. K., Warren, S. E., Briggs, G. M., Diastolic dysfunction in hypertrophic cardiomyopathy: Effect on active force generation during systole (1991) J Clin Invest, 87, pp. 1023-1031
Cohn, J. N., Prognosis of congestive heart failure and predictors of mortality (1988) Am J Cardiol, 62, pp. 25-30
Combined effect of the force-frequency and length-tension mechanisms on left ventricular function in patients with dilated cardiomyopathy
The myocardial length-tension and the force-frequency relations are important mechanisms that regulate the contractile strength of the heart. Aims: To evaluate in humans the effect on left ventricular function of the interaction between the myocardial length-tension and force-frequency relations. Methods and results: Eight patients with dilated cardiomyopathy (DCM) and 6 control subjects underwent radionuclide monitoring of left ventricular function during atrial pacing, saline loading and atrial pacing at the end of saline loading. In controls, atrial pacing reduced left ventricular end-diastolic (P
Combined effect of the force-frequency and length-tension mechanisms on left ventricular function in patients with dilated cardiomyopathy
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