Related Experiment Videos
[Left ventricular performance and morphologic myocardial changes in untreated hypertensive patients]
G du Cailar1, J Ribstein, A Radauceanu
1Service de médecine interne G, hôpital Lapeyronie, Montpellier.
Archives Des Maladies Du Coeur Et Des Vaisseaux
|August 1, 1994
Summary
Hypertension alters left ventricular geometry and function. Concentric remodeling and hypertrophy impair contractile performance, while eccentric hypertrophy maintains it despite increased afterload.
Area of Science:
- Cardiology
- Hypertension Research
- Echocardiography
Context:
- Essential hypertension significantly impacts cardiovascular health.
- Left ventricular (LV) geometric adaptations are crucial in hypertension.
- Assessing LV contractile performance requires accounting for afterload.
Purpose:
- To investigate left ventricular contractile performance and geometric adaptation in patients with untreated essential hypertension.
- To categorize hypertensive patients based on LV mass and relative wall thickness.
- To correlate LV geometry with systolic function under varying afterload conditions.
Summary:
- M-mode echocardiography assessed 255 hypertensive and 160 normotensive individuals.
- Patients were classified into normal, concentric remodeling, concentric hypertrophy, and eccentric hypertrophy groups.
- Afterload-corrected fractional shortening revealed impaired function in concentric remodeling/hypertrophy but preserved function in eccentric hypertrophy.
Impact:
- Left ventricular mass is strongly dependent on chamber size and myocardial contractility.
- Arterial pressure is not the sole driver of left ventricular hypertrophy in essential hypertension.
- Further research is needed to elucidate the interplay of factors influencing LV hypertrophy.