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Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation
Published on: October 20, 2016
Left ventricular function in hypertension: new insight by speckle tracking echocardiography
Egidio Imbalzano1, Concetta Zito, Scipione Carerj
1Department of Internal Medicine and Medical Therapy, University of Messina, Italy.
Echocardiography (Mount Kisco, N.Y.)
|June 17, 2011
Summary
Speckle tracking echocardiography (STE) detects early systolic dysfunction in hypertensive patients before left ventricular hypertrophy (LVH) develops. This advanced imaging identifies subtle changes, aiding in risk stratification for heart failure (HF).
Area of Science:
- Cardiology
- Medical Imaging
- Hypertension Research
Background:
- Conventional echocardiography (TTE) and tissue Doppler imaging (TDI) often fail to detect early left ventricular (LV) systolic dysfunction in hypertension before left ventricular hypertrophy (LVH).
- Early detection of LV systolic dysfunction is crucial for identifying patients at higher risk for heart failure (HF).
Purpose of the Study:
- To evaluate if speckle tracking echocardiography (STE) offers greater insight into early hypertension-induced LV systolic dysfunction.
- To identify hypertensive patients at increased risk for heart failure (HF) using STE.
Main Methods:
- Fifty-one hypertensive patients and 51 controls were enrolled, with patients classified as LVH((+)) or LVH((-)).
- Global longitudinal strain (LS) was assessed by TDI.
- Global strains (longitudinal, radial, circumferential) and LV twist were evaluated using STE.
Main Results:
- Conventional TTE showed diastolic dysfunction but normal systolic function in all hypertensive patients.
- TDI detected systolic dysfunction only in the LVH((+)) group.
- STE revealed impaired systolic LS in all hypertensive patients, including those without LVH, and identified altered radial strain, circumferential strain, and twist in the LVH((+)) group compared to controls and LVH((-)) patients.
Conclusions:
- STE provides more detailed information than TTE and TDI in hypertensive patients, detecting systolic dysfunction prior to hypertrophy (Stage A HF).
- STE identifies early LV mechanical changes, potentially improving clinical management and risk stratification for heart failure in hypertensive individuals.
