A patient with mitral stenosis and atrial flutter was found to have a normal diastolic closure rate (E to F slope). Fol lowing cardioversion, the typical echo cardiographic features of mitral stenosis were found. After various interventions that increased heart rate, however, the diastolic closure rate increased. This re port demonstrates, therefore, that the E to F slope is not always a fixed value in mitral stenosis and that under certain conditions it may even appear to be nor mal.
Get full access to this article
View all access options for this article.
References
1.
Feigenbaum, H. : Echocardiography, Lea & Febiger, Philadelphia, 1972.
2.
Shah, P.R., Gramiak, R., Kramer, D.H.: Ultrasound localization of left ventricular outflow obstruction in hypertrophic obstructive cardiomyopathy. Circulation, 40: 3, 1969.
3.
McLaurin, L.P. , Gibson, T.C., Waider, W., et al.: An appraisal of mitral valve echocardiograms mimicking mitral stenosis in conditions with right ventricular pressure overload . Circulation, 48: 801, 1973.
4.
Duchak, J.M. , Chang, S., Feigenbaum, H.: The posterior mitral valve echo and the echocardiographic diagnosis of mitral stenosis. Am. J. Cardiol., 29: 623, 1972.
5.
Gustafson, A. : Ultrasoundcardiography in mitral stenosis. Acta Med. Scand. (Suppl.)., 461: 1, 1966.
6.
Cope, G.D., Kisslo, J.A., Johnson, M.L., et al.: A reassessment of the echocardiogram in mitral stenosis. Circulation, 52: 644, 1975.
7.
Levisman, J.A. , Abbasi, A.S., Pearce, M.L.: Posterior leaflet in mitral stenosis. Circulation, 51: 5, 1975.
8.
Laniado, S., Yellin, E., Kotler, M., et al.: A study of the dynamic relations between the mitral valve echogram and phasic mitral flow. Circulation, 51: 104, 1975.
9.
Layton, C., Gent, G., Pridie, R., et al.: Diastolic closure rate of normal mitral valve. Br. Heart J., 35: 1066, 1973.
10.
Quinones, M.A. , Gaasch, W.H., Waisser, E., et al.: Reduction in the rate of diastolic descent of the mitral valve echogram in patients with altered left ventricular diastolic pressure-volume relations. Circulation, 49: 246, 1974.
