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Left ventricular hypertrophy in mild essential hypertension. Its progression, prediction and treatment strategy
N Doba1, H Tomiyama, H Yoshida
1Third Department of Internal Medicine, Teikyo University School of Medicine, Ichihara, Japan.
Insights
Left ventricular hypertrophy (LVH) in hypertension requires multifaceted treatment. Echocardiography and exercise testing can predict LVH progression, guiding individualized medication selection for better cardiovascular outcomes.
Area of Science:
- Cardiology
- Hypertension Research
- Medical Diagnostics
Background:
- Left ventricular hypertrophy (LVH) in hypertension is multifactorial.
- Antihypertensive strategies must be multifaceted.
- Echocardiography offers reliable LVH diagnosis.
Purpose of the Study:
- To classify LV morphology using established criteria.
- To identify predictors for LVH progression.
- To emphasize individualized treatment strategies for hypertension and LVH.
Main Methods:
- Utilized echocardiography (M-mode, 2D) for LVH diagnosis.
- Applied Ganau et al. criteria for LV morphology classification.
- Incorporated maximal exercise testing to assess predictors of LVH progression.
Main Results:
- Concentric hypertrophy pattern identified as high-risk for prognosis.
- Predictors for LVH progression defined: LVMI > 124 g/m2 and peak systolic pressure > 200 mmHg during maximal exercise.
- Hyperinsulinemia, insulin resistance, and decreased physical fitness implicated in LVH pathogenesis.
Conclusions:
- Individualized medication selection is crucial for managing hypertension-induced LVH.
- Targeting arteriosclerosis alongside LVH is vital for improving cardiovascular prognosis.
- Further research is needed for refined treatment approaches in hypertensive patients.
Abstract:
Since the pathogenesis of left ventricular hypertrophy (LVH) in hypertension is thought to be multifactorial, the antihypertensive strategy also has to be multifaceted. Diagnosis of LVH is more reliable than ever with echocardiography either of the M-mode or 2D method. Diagnostic criteria have already been proposed by Ganau et al who classified LV morphology into 4 different sectors based on the standard values of left ventricular mass index (LVMI) and relative wall thickness in diastole (RWTd); normal, concentric remodeling, concentric hypertrophy and eccentric hypertrophy. The concentric hypertrophy pattern is the most risky with regard to prognosis. Therefore, its detection and prediction for further progression have to be conducted with relatively easy routine work-up procedures such as echocardiography and maximal exercise testing. The prediction of LVH progression has already been proposed based on several studies conducted in patients with borderline or mild hypertension. The following two predictors were defined as LVMI > 124 g/m2 and peak Ps at maximal exercise testing > 200 mmHg. Therefore, the patient who meets these criteria has to be treated with medications that are appropriately selected on an individualized basis. Both hyperinsulinemia and insulin resistance are thought to be involved in the initiation, promotion and potentiation of remodeling of the LV in hypertension. Physical fitness also seems to be decreased in a parallel manner. Selection of the most appropriate drug for a given patient has to be individually determined based on the risks that have to be corrected. Finally, arteriosclerosis, which is almost always initiated and progresses in concert with hypertension, must also be targeted with regard to such prognostic aspects as cardiovascular morbidity and mortality. Arteriosclerosis is pathogenetically independent from hypertension, but usually behaves in concert with it. Selection of medication must be focussed on an individualized basis not only for LVH, but also for improvement in arterial elasticity. Further clinical research is still needed to provide more reasonable approaches to patients with hypertension.