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Doppler tissue echocardiography: myocardial wall motion velocities in essential hypertension.
- Source :
-
European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology [Eur J Echocardiogr] 2001 Jun; Vol. 2 (2), pp. 108-17. - Publication Year :
- 2001
-
Abstract
- Aims: Doppler tissue echocardiography (DTE) was applied to extract the myocardial wall velocities along different planes and evaluate the left ventricular function in essential hypertension.<br />Methods and Results: Fifty-four hypertensives (HT) were compared to a control group of 31 normotensive (NT) subjects. The short-axis shortening and lengthening was assessed through the parasternal projections, sampling from interventricular septum and posterior wall. Through the apical projections the mitral annulus excursion was observed at four sites (anterior, posteroseptal, lateral, inferior walls) to assess the longitudinal dynamic of the heart. In each myocardial segment, peak velocity and time-velocity integral for systolic (S) and diastolic waves (E and A) were measured and their means for the long- and short-axis directions were calculated. Significant changes in hypertensives involved mainly the longitudinal motion. In diastole, the E-wave relaxation velocity was significantly decreased and the late A-wave velocity was unchanged. The E/A velocity ratio was significantly reduced. Relaxation velocity was negatively correlated to age, left ventricular mass and diastolic blood pressure. In systole, the peak S-wave shortening velocity was reduced and no association with age, left ventricular mass and blood pressure could be demonstrated. The range of segmental data produced by DTE proved useful to manufacture sensitive indices for recognition of hypertensive damage. Single DTE variables also proved slightly more sensitive than those extracted from the mitral flow pattern for the discrimination of HT patients.<br />Conclusion: The presence of impaired relaxation was confirmed by DTE in a large portion of patients with hypertension and left ventricular hypertrophy. A peculiar systolic disturbance is evidenced by this technique. DTE-derived information can be used to detect early and quantify target-organ damage and its progression or regression during antihypertensive treatment.
- Subjects :
- Adult
Age Factors
Aged
Antihypertensive Agents therapeutic use
Blood Flow Velocity physiology
Blood Pressure drug effects
Female
Follow-Up Studies
Heart Septum diagnostic imaging
Heart Ventricles diagnostic imaging
Humans
Hypertension diagnostic imaging
Hypertension drug therapy
Hypertension physiopathology
Italy epidemiology
Male
Middle Aged
Myocardial Contraction physiology
Regression Analysis
Statistics as Topic
Stroke Volume physiology
Ventricular Function, Left physiology
Echocardiography, Doppler
Subjects
Details
- Language :
- English
- ISSN :
- 1525-2167
- Volume :
- 2
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology
- Publication Type :
- Academic Journal
- Accession number :
- 11882437
- Full Text :
- https://doi.org/10.1053/euje.2000.0057