Evaluation Of Left Ventricular Long-axis Systolic Function In Patients With Essential Hypertension Using Two Dimensional Strain Imaging

Objective:To evaluate the left ventricular long-axis systolic function in patient with essential hypertension (EH) by using two dimensional strain imaging and to investigate the clinical significance. Methods:Totally61hypertensive patients and30healthy volunteers (group A) were enrolled.61hypertensive patients were divided into two groups:30hypertensive patients without septal hypertrophy (group B) and31hypertensive patients with septal hypertrophy (group C). Height frame rate two-dimensional images were recorded from the apical four-chamber view, two-chamber view and long-axis of the left ventricle. The peak systolic longitudinal strain of18segments and3whole views were measured using two-dimensional strain software, and eventually the strain of18segments were showed in a Bull s eye. Results:The average peak systolic longitudinal strain of3whole views (GLS-Avg) in group A、group B and group C were progressively reduced (P<0.01). Conclusion:Two dimensional strain imaging can show the decline of systolic function in part of the myocardial segments before the global systolic function in patients with hypertension. Two dimensional strain imaging has the potentiality to be used clinically to evaluate the left ventricular systolic function in hypertension patients.