Grading Scheme of Hahn et al for Paravalvular Aortic Regurgitation Following Transcatheter Aortic Valve Replacement

Description

Hahn et al evaluated the quantitation of paravalvular aortic regurgitation after transcatheter aortic valve replacement. This included a grading scheme for findings seen on echocardiography. The authors are from Columbia University Medical Center, New York-Presbyterian Hospital, Laval University, Medstar Health Research Institute and the Cleveland Clinic.

Patient selection: transcatheter aortic valve replacement

Outcome: paravalvular aortic regurgitation on echocardiography

Parameters:

(1) regurgitant volume in mL

(2) regurgitant fraction

(3) effective regurgitant orifice area in square mm

Parameter	Finding	Regurgitation Grade
regurgitant volume	below level of detection	none/trace
	< 15 mL	mild
	15 to 30 mL	mild to moderate
	31 to 44 mL	moderate
	45 to 60 mL	moderate to severe
	> 60 mL	severe
regurgitant fraction	below level of detection	none/trace
	< 15%	mild
	15 to 30%	mild to moderate
	31 to 39%	moderate
	40 to 50%	moderate to severe
	> 50%	severe
effective regurgitant orifice area	below level of detection	none/trace
	< 5 square mm	mild
	5 to 10 square mm	mild to moderate
	11 to 19 square mm	moderate
	20 to 30 square mm	moderate to severe
	> 30 square mm	severe

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Grading Scheme of Hahn et al for Paravalvular Aortic Regurgitation Following Transcatheter Aortic Valve Replacement

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