Hemodynamic Change in Transmitral Gradient During Valsalva Maneuver and Its Relation with Left Atrial Function, Functional Capacity, and Pulmonary Artery Pressure in Patients with Mitral Stenosis in Sinus Rhythm

This study, for the first time, suggests that echocardiographically determined changes in TG in response to the Valsalva maneuver may provide an objective, noninvasive means of evaluating patients with MS.