Cardiovascular magnetic resonance characterization of rheumatic mitral stenosis: findings from three worldwide endemic zones

Table 3 CMR findings of the mitral stenosis (MS) cohort, stratified by atrial fibrillation

	MS patients with atrial fibrillation (n = 17)	MS patients without atrial fibrillation (n = 23)	P value
LA maximal volume (mL/m²)	98 (83, 136)	80 (64, 103)	0.09
LA minimal volume (mL/m²)	83 (58, 107)	63 (45, 85)	0.12
LA emptying fraction (%)	19 (11, 28)	20 (14, 33)	0.47
RA maximal area (cm²)	22 (17, 24)	20 (15, 22)	0.33
LVEF (%)	48 (42, 63)	51 (41, 54)	0.49
LVEDV (mL/m²)	73 (58, 90)	68 (61, 93)	0.68
RVEF (%)	43 (39, 54)	45 (40, 50)	0.89
RVEDVI (mL/m²)	69 (58, 78)	76 (61, 89)	0.26
LGE presence	(n = 16) 13 (81%)	(n = 23) 19 (83%)	0.91
MVA by pressure half-time on echocardiography (cm²)	(n = 10) 0.9 (0.7, 1.1)	(n = 18) 0.8 (0.75, 1.3)	0.98

Data are shown as median (interquartile range) or n (%)
Data are shown as median (interquartile range) or n (%). CMR, cardiovascular magnetic resonance; LA, left atrium; LGE, late gadolinium enhancement; LVEDV, left ventricular end-diastolic volume; LVEF, left ventricular ejection fraction; MS, mitral stenosis; MVA, mitral valve area; RA, right atrium; RV, right ventricle; RVEDVI, right ventricular end-diastolic volume index; RVEF, right ventricular ejection fraction

ISSN: 1532-429X