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Table 4 Comparison of mitral regurgitation severity in HCM patients without LVOT obstruction: aortic vs. pulmonary flow-based MRvol grades

From: Quantification of mitral regurgitation in patients with hypertrophic cardiomyopathy using aortic and pulmonary flow data: impacts of left ventricular outflow tract obstruction and different left ventricular segmentation methods

 

Aortic flow-based MRvol grades calculated as LVSVincl − Ao

< 15 ml

15–29 ml

30–45 ml

45–59 ml

Total

Pulmonary flow-based MRvol grades calculated as LVSVincl − MPA

 < 15 ml

18

3

0

0

21 (23.1%)

 15–29 ml

1

36

3

0

40 (44.0%)

 30–45 ml

0

2

23

1

26 (28.6%)

 45–59 ml

0

0

0

4

4 (4.4%)

 Total

19 (20.9%)

41 (45.1%)

26 (28.6%)

5 (5.5%)

91

  1. There were no patients with MRvol ≥ 60 ml in the non-obstructive HCM group