Investigations about the left ventricular diastolic dysfunction of the hypertensive patients in Binh dinh general hospital
- Author:
Tran Nam Viet Hung
- Publication Type:Journal Article
- Keywords:
hypertension
- MeSH:
Ventricular Dysfunction, Left;
Hypertension
- From:Journal of Practical Medicine
2005;505(3):49-51
- CountryViet Nam
- Language:Vietnamese
-
Abstract:
Back ground: The hypertension may lead the changes of the left ventricular geometry and the left ventricular diastolic dysfunction. There were many investigations about these abnormalities. Moreover, the treatment of the hypertensive patients with or without the left ventricular diastolic dysfunction is quite different. In Binh dinh general hospital, however, the left ventricular dysfuntion were neglected in practice. Thus, in this study, we evaluate the prevalence of these abnormalities in hypertensive patients. Subjects and method: We prospectively studied, from 6/2002 to 11/2003, 200 consecutive hypertensive patients admitted to the Internal Deparment at the Binh Dinh General Hospital. Echocardiography was performed on a Hewlett-Packard Image-Points with 2.5 and 3.5 MHz transducers. Measurements of the size of the ventricular walls are according to ASE. Doppler echocardiography is used to evaluate the characteristics of diastolic transmitral blood flow from the apical four-chaber view. The peak velocities of blood flow during early diastolic filling (E wave) and atrial contraction (A wave), the E-wave decelerating time and parameters of pulmonary venous flow revesal during atrial contraction are measured. The isovolumic relaxation time is measured from the apical-five chamber view. The diagnosis and classification of the left ventricular geometric changes and the abnormal diastolic filling patterns are based on the criteria of Devereux. Results: Prevalence of the left ventricular diastolic dysfunction was 61.5% of the hypertensive patients with the most frequent impaired relaxation pattern (48%). 72.5% of patients have the geometric changes in which the remodelling type consists of 47.5% concentric hypertrophy 25%.
