Introduction

Given the advances in echocardiographic techniques that allow a more comprehensive assessment of cardiac function, particularly diastolic function, the current importance of the left atrium (LA) deserves special emphasis. Since the LA plays a key role in maintaining cardiac output and undergoes early functional and structural changes, it occupies a critical position in preserving the systolic functionality of the left ventricle (LV).

Objective

To determine the early signs of left atrial dysfunction by peak longitudinal strain in patients with systemic arterial hypertension.

Materials and Methods

Descriptive study with an analytical component, observational, cross-sectional design.

Results

One hundred patients with arterial hypertension and preserved LV ejection fraction were included, with a mean age of 58±13 years, 55% female. The most prevalent additional risk factors were dyslipidemia (80%), followed by overweight and obesity (59%). Patients with diastolic dysfunction (74%) showed a significant reduction in peak longitudinal strain of the LA (p <0.0001).

Conclusion

Peak atrial longitudinal strain is a useful tool for the early assessment of left atrial dysfunction and has a significant direct relationship with LV diastolic dysfunction in patients with systemic arterial hypertension and preserved left ventricular ejection fraction.