Low-flow aortic stenosis and preserved left ventricular ejection fraction

Low-flow aortic stenosis and preserved left ventricular ejection fraction.

Valvular aortic stenosis (AS) is the most frequent valvular disease in developed countries. Treatment decisions in AS are mainly based upon the symptomatic status of the patient and the severity of AS. Doppler echocardiography represents the standard tool for detecting and assessing the severity of the disease. Under the same denomination of severe AS [aortic valve area (AVA) < 1 cm(2)], severa...

Erratum to: Low-flow aortic stenosis and preserved left ventricular ejection fraction.

Outcome of patients with aortic stenosis, small valve area, and low-flow, low-gradient despite preserved left ventricular ejection fraction.

OBJECTIVES The aim of this case match study was to compare the outcome of patients with paradoxical low-flow (left ventricular ejection fraction [LVEF] ≥50% but stroke volume index <35 ml/m(2)), low-gradient (mean gradient [MG] <40 mm Hg), a priori severe (aortic valve area [AVA] ≤1.0 cm(2)) aortic stenosis (AS) (PLG-SAS group) with that of patients with a severe AS (AVA ≤1.0 cm(2)) and consist...

Exercise Echocardiography in Asymptomatic Patients with Severe Aortic Stenosis and Preserved Left Ventricular Ejection Fraction

The management of asymptomatic patients with severe aortic stenosis (AS) remains controversial. Recent series reported that early aortic valve replacement might be associated with improved clinical outcomes. However, the risk-benefit ratio should be carefully evaluated and early surgery only be proposed to a subset of asymptomatic patients considered at higher risk. Exercise echocardiography ca...

Cardiac amyloidosis: an unusual cause of low flow-low gradient aortic stenosis with preserved ejection fraction.

Current practice of aortic stenosis assessment. Aortic stenosis (AS) has become the most frequent valve disease and has a very poor outcome when left untreated in symptomatic patients. Because aortic valve replacement can—in the best case—normalize survival, timely diagnosis and correct quantification of AS are crucial (1). Current practice guidelines recommend echocardiography as the method of...