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  • Title: Echocardiographic findings of left ventricular hypertrophy and normalization of parameters of left ventricular function in patients with previous evidence of dilated and poorly contracting left ventricle and coexisting systemic hypertension.
    Author: Dall'Aglio V, Nicolosi GL, Burelli C, Zardo F, Pavan D, Lestuzzi C, Zanuttini D.
    Journal: Clin Cardiol; 1989 Feb; 12(2):91-6. PubMed ID: 2523768.
    Abstract:
    We report 6 cases of dilated left ventricle with poor left ventricular function and coexisting systemic hypertension in whom left ventricular hypertrophy and normalization of left ventricular function and dimensions have been subsequently documented by M-mode and two-dimensional echocardiographic follow-up studies. Four patients were in New York Heart Association functional Class IV, one in Class III, and one in Class II when first seen. Normalization of left ventricular function and dimensions and features of left ventricular hypertrophy (fractional shortening from 15.0 +/- 5.2 to 39.7 +/- 5.4, left ventricular end-diastolic diameter from 6.6 +/- 0.6 to 4.6 +/- 0.6 cm, left ventricular end-systolic diameter from 5.6 +/- 0.8 to 2.8 +/- 0.6 cm, left ventricular end-diastolic radius/posterior wall thickness from 3.1 +/- 0.5 to 2.0 +/- 0.4, interventricular septum thickness from 1.2 +/- 0.3 to 1.5 +/- 0.3 cm, left atrium from 4.6 +/- 0.6 to 3.5 +/- 0.9 cm) were achieved after adequate medical treatment at the end of the follow-up (11-39 months). It appears from this study that normalization of left ventricular dimensions and function with features of left ventricular hypertrophy can occur after adequate treatment in patients with echocardiographic findings of dilated and poorly contracting left ventricle and coexisting systemic hypertension. It is conceivable, in such cases, to classify the dilatation of the left ventricle as secondary and to suggest the hypothesis of a cause-effect relationship between therapy and normalization of left ventricular parameters with findings of left ventricular hypertrophy. Further studies are needed to clarify this phenomenon.
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