Impaired left atrial mechanical functions as indicators for increased aortic root diameter in hypertensive and diabetic patients.

Herz
Ezgi KalaycıoğluTuncay Kırış

Abstract

Previous studies have demonstrated that increased aortic root diameter (ARD) is frequently associated with increased cardiovascular (CV) events and is a predictor of stroke. Two-dimensional speckle tracking echocardiography (2D-STE) provides a better evaluation of left atrial (LA) functions. Left atrial mechanical dispersion is a useful predictor of new-onset atrial fibrillation (AF) independent of LA enlargement and dysfunction. We aimed to investigate the relationship between ARD and LA mechanical functions. The present study included 93 consecutive patients with hypertension and diabetes. The relationships between ARD and LA functions was evaluated. Study population was divided into two groups according to the mean ARD values: group 1 (ARD ≤30.03 mm, n = 53) and group 2 (ARD >30.03 mm, n = 40). In group 2, age, LA max volume (vol), LA pre A vol, LA min vol, LA emptying fraction, LA active ejection fraction (EF), and LA expansion index were significantly higher compared to group 1. S‑LAs and SR-LAs (peak LA strain and strain rate, respectively, during ventricular systole) and S‑LAe and SR-LAe (peak early diastolic LA strain and strain rate, respectively) were significantly lower in group 2 compared to group 1. Age, LA max vol...Continue Reading

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