Left Ventricular Diastolic Function in Idiopathic Cardiomyopathy: Doppler Hemodynamic Correlations
1991; Wiley; Volume: 8; Issue: 2 Linguagem: Inglês
10.1111/j.1540-8175.1991.tb01386.x
ISSN1540-8175
Autores Tópico(s)Cardiac electrophysiology and arrhythmias
ResumoThe left ventricular diastolic filling pattern in congestive cardiomyopathy is heterogeneous and may vary from a “rapid filling predominant pattern” to an “atrial filling predominant pattern.” The observed pattern of diastolic filling may depend on a complex interaction of factors including: left ventricular relaxation, left ventricular stiffness, external constraining forces, loading conditions, and heart rate. These factors appear to express themselves individually and collectively through alterations in the time course and extent of the transmitral pressure gradient. In this review, the physiological basis for each of these diastolic filling patterns is discussed based on previous clinical and experimental studies that either directly or indirectly address these issues. (ECHOCARDIOGRAPHY, Volume 8, March 1991)
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