Table 6.

Criteria for severe secondary MR.

Secondary MR can be considered severe if:	And three specific criteria for severe MR
EROA 0.3–0.39 cm2 Regurgitant volume 45–59 mL RF 40–49%	Flail leaflet VC (single plane ≥0.7 cm, biplane ≥0.8 cm) PISA radius ≥1.0 cm at Nyquist 30–40 cm/s Central large jet >50% of LA area Pulmonary vein systolic flow reversal Enlarged LV with normal function

Data from the ASE table for grading the severity of chronic MR by echocardiography (15).