What is normal LV strain?

Reported normal values of GLS varied from -15.9% to -22.1% (mean, -19.7%; 95% CI, -20.4% to -18.9%). Normal global circumferential strain varied from -20.9% to -27.8% (mean, -23.3%; 95% CI, -24.6% to -22.1%).

How is LV strain measured?

In order to calculate strain at any given time point, the difference between length at the reference point (end-diastole during echocardiography) and the current length (usually end-systole) is calculated. This figure is then divided by original reference length and then expressed as a percentage.

What does left ventricular strain mean?

The generally accepted definition of left ventricular strain is an ST-segment depression that is bowed upwards and slopes down into an inverted asymmetrical T wave.

What is normal global longitudinal strain value?

The normal range for global longitudinal strain was 21%, although it significantly varied with age. Patients aged older than 60 years had lower global longitudinal strain compared with those younger than 60 years (20% vs.

What is strain rate echo?

Strain rate imaging is a method in echocardiography (medical ultrasound) for measuring regional or global deformation of the myocardium (heart muscle). By strain rate imaging, the simultaneous function of different regions can be displayed and measured. The method was first based on colour tissue Doppler.

What is strain in Echo?

Strain imaging evaluates the function of the heart muscle (myocardium) using cardiac ultrasound. This method is used to identify subtle changes in heart function.

Is LVH curable?

LVH can often be corrected by treating the underlying problem causing the heart to work too hard. Depending on the type of damage that has occurred, treatment measures may include medications and heart-healthy lifestyle changes to help reduce the pressure in the heart.

What is left ventricular global longitudinal strain?

Left ventricular global longitudinal strain (GLS) measures the maximal shortening of myocardial longitudinal length during systole compared to the resting length in diastole. Reduced GLS may reflect abnormal systolic function before loss of ejection fraction (EF) becomes apparent.

What is strain used for in Echo?