Parameters of Mitral Regurgitation on Echocardiography

Mitral regurgitation Bolded qualitative and semiquantitative signs are considered specific for their MR grade. All parameters have limitations, and an integrated approach must be used that weighs the strength of each echocardiographic measurement. All signs and measures should be interpreted in an individualized manner that accounts for body size, sex, and all other patient characteristics. (1) This pertains mostly to patients with primary. (2) LV and LA can be within the “normal” range for patients with acute severe MR or with chronic severe MR who have small body size, particularly women, or with small LV size preceding the occurrence of MR. (3) For average between apical two- and four-chamber views (Biplane). (4) Influenced by many other factors (LV diastolic function, atrial fibrillation, LA pressure). (5) Most valid in patients >50 years old and is influenced by other causes of elevated LA pressure. (6) Discrepancies among EROA, RF, and RegVol may arise in the setting of low or high flow states.

Quantitative parameters can help subclassify the moderate regurgitation group. ASE Recommendations for Noninvasive Evaluation of Native Valvular Regurgitation (2017)