Tag Marie-Annick Clavel

Cardiovascular

Classification of Prosthetic Valve Types and Fluid Dynamics

Acknowledgments The authors thank Drs. Jean G. Dumesnil and Haifa Mahjoub for their contributions to this chapter in the previous edition. More than 300,000 patients per year require valve replacement in the world, and this number is estimated to triple…

ASE’s Comprehensive Echocardiography
September 15, 2023

Cardiovascular

Low-Flow, Low-Gradient Aortic Stenosis With Preserved Left Ventricular Ejection Fraction

Low-flow, low-gradient (LF-LG) aortic stenosis (AS) is characterized by a small aortic valve area (AVA<1.0 cm 2 ), a low gradient (mean <40 mm Hg), and a low-flow state (stroke volume index [SVI] <35 mL/m 2 ). The LF-LG AS…

ASE’s Comprehensive Echocardiography
September 15, 2023

Cardiovascular

Low-Flow, Low-Gradient Aortic Stenosis With Reduced Left Ventricular Ejection Fraction

Low-flow, low-gradient (LF-LG) aortic stenosis (AS) with reduced left ventricular ejection fraction (LVEF) occurs in approximately 5% to 10% of patients with AS. This entity is characterized by a small aortic valve area (AVA) compatible with severe AS (i.e., ≤1.0…

ASE’s Comprehensive Echocardiography
September 15, 2023