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  • Title: [Impaired diastolic ventricular function in dilated cardiomyopathy with variously reduced systolic function. A Doppler echocardiography analysis].
    Author: Werner GS, Sold G, Andreas S, Schäfer C, Figulla HR, Kreuzer H.
    Journal: Z Kardiol; 1991 Apr; 80(4):250-7. PubMed ID: 1862665.
    Abstract:
    Diastolic ventricular function was assessed by Doppler echocardiography in 50 patients with idiopathic dilated cardiomyopathy (DCM) and sinus rhythm. The patients were subdivided into two groups with either a moderately reduced ejection fraction (less than 32%; group 1, n = 25) or a severely reduced ejection fraction (less than 32%; group 2, n = 25), the latter having an unfavorable prognosis. The degree of heart failure according to the NYHA classification was more pronounced in group 2 (p less than 0.05). Mean pulmonary capillary wedge pressure (PCm) was also higher in group 2 (gr. 1:9.8 +/- 5.5 vs. gr. 2: 16.2 +/- 8.9; p less than 0.02), and the morphological parameters obtained by conventional M-mode echocardiography showed increased left ventricular volumes and mass in both groups with DCM, as compared with a control group (n = 16); there was a reduced volume/mass ratio in group 2. The parameters of systolic function derived from M-mode and Doppler echocardiography were reduced in patients with DCM, but were more pronounced in group 2. Doppler parameters of diastolic ventricular filling were differently affected in both groups with DCM. In group 1 there was a reduced contribution of the early diastolic phase to ventricular filling (FE/FA) (contr.: 2.29 +/- 0.99 vs gr. 1: 1.40 +/- 0.45; p less than 0.05) and a reduced early peak Doppler velocity, indicating an impaired ventricular relaxation. In group 2, as compared with controls and group 1, there was an increased ratio of early/late diastolic peak velocities (VE/VA) (contr.: 1.49 +/- 0.54 vs gr. 2: 2.32 +/- 1.37; p less than 0.01).(ABSTRACT TRUNCATED AT 250 WORDS)
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