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Association of systolic dysfunction with left ventricular hypertrophy and diastolic dysfunction in hypertensive
Insights
Systolic dysfunction is common in hypertensive patients with left ventricular hypertrophy (LVH). This dysfunction worsens when diastolic dysfunction (DD) is also present, impacting heart function.
Area of Science:
- Cardiology
- Hypertension Research
- Echocardiography
Background:
- Systolic dysfunction is often unrecognized in patients with hypertension.
- Left ventricular hypertrophy (LVH) is a common complication of hypertension.
Purpose of the Study:
- To demonstrate systolic dysfunction in hypertensive patients with LVH.
- To show that systolic dysfunction is exacerbated by the presence of diastolic dysfunction (DD).
Main Methods:
- Descriptive cross-sectional study with prospective data collection.
- Evaluation of left ventricular function using conventional echocardiography, mitral inflow Doppler, and tissue Doppler.
- Patients categorized into four groups based on LVH and DD status.
Main Results:
- 292 hypertensive patients were analyzed, categorized by LVH and DD.
- Patients with DD were older, more often female, and had higher blood pressure.
- Longitudinal myocardial fiber shortening (s wave) was significantly reduced in patients with both LVH and DD.
Conclusions:
- Hypertensive patients with LVH exhibit systolic dysfunction.
- The severity of systolic dysfunction increases when diastolic dysfunction is also present.
Background:
the presence of systolic dysfunction has not been well recognized in hypertensive patients (p).
Objectives:
The aim of this study is to demonstrate that hypertensive p with left ventricular hypertrophy (LVH) have systolic dysfunction, and that this functional alteration increases when it is associated to diastolic dysfunction (DD).
Methods:
descriptivecross-sectional studywith aprospectivelycollected sample according to specified inclusion and exclusion criteria. Left ventricular function was evaluated with conventional echocardiography, mitral valvular orifice Doppler and tissue Doppler following international guidelines. The p were divided in four groups by the presence or absence of LVH and DD.
Statistical Analysis:
students t tests and ANOVA test, statistical significance <0,05.
Results:
292 p were included, 130 p (51 %) LVH- DD-; 36 p (5,9 %) LVH- DD+; 87 p (37,6 %) LVH+ DD-; and 39 p (5,5 %) LVH+ DD+. Patients with diastolic dysfunction were older and more frequently of female sex, had greater systolic blood pressure and central aortic systolic blood pressure. The shortening rate of longitudinal myocardial fibers measured by tissue Doppler (s wave) were 6,3 +1,1 cm/sec in LVH+ DD+ p, 7,2+1,3 cm/sec in LVH+ DD- p, 6,8+1,2 cm/sec in LVH- DD+ p, and 7,8+0,6 cm/seg in LVH- DD- p (<0,005).
Conclusions:
hypertensives p had systolic dysfunction when LVH is present and it is greater when it is associated to DD.
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