Study on High-Gradient Aortic Stenosis and the Importance of Mean Gradients

This chapter analyzes a retrospective study on high-gradient aortic stenosis patients, stressing the need for prospective studies to overcome limitations and cautioning against relying only on aortic valve area measurements. It underscores the significance of mean gradients exceeding 40mmHg, especially concerning echocardiographic evaluations and the role of cardiac characterization studies for precise assessments.