Table 2.

Comparisons of current guideline vs. proposed changes to TR grading.

Proposed TR grading	Current guidelines
“Massive” for TR one grade above severe and “torrential” for the most severe form of TR possible	Made provision for massive TR qualitatively. No clear semi-quantitative or quantitative definition
Different thresholds for EROA obtained from PISA and quantitative Doppler methods	No distinction between EROA obtained from PISA and quantitative Doppler
EROAs and regurgitant volumes for massive and torrential TR were defined.	Only thresholds for severe (EROA ≥40 mm2 and R Vol ≥45 ml) were defined.
Use of 3D vena contracta/effective regurgitant orifice area (the resultant value should be comparable to EROA obtained from quantitative Doppler)	No mention of 3D assessment
Use of biplane vena contracta	Did not emphasise the use of biplane vena contracta