Table 1. Baseline characteristics .

	All patients (N=264)	PTMC group (N=164)	MVR group (N=100)	P value
Mean age, years	49.52 ± 13.03	47.38 ± 13.38	53.04 ± 11.69	0.001
Female, (%)	213 (80.7%)	131 (79.9%)	82 (82%)	0.672
Atrial fibrillation, (%)	181 (68.6%)	87 (53%)	94 (94%)	< 0.001
Comorbidity, (%)
Type 2 diabetes mellitus	27 (10.2%)	18 (11%)	9 (9%)	0.626
Hypertension	38 (14.4%)	24 (14.6%)	14 (14%)	0.912
Dyslipidemia	18 (6.8%)	9 (5.5%)	9 (9%)	0.262
Chronic kidney disease, (GFR < 60 ml/min/1.73 m2)	5 (1.9%)	4 (2.4%)	1 (1%)	0.653
Indication, (%)
Dyspnea	134 (50.8%)	84 (51.2%)	50 (50%)	0.897
Heart failure	98 (37.1%)	56 (34.1%)	42 (42%)	0.181
Stroke and systemic embolism	30 (11.4%)	18 (11%)	12 (12%)	0.782
New onset atrial fibrillation	38 (14.4%)	29 (17.7%)	9 (9%)	0.054
SPAP > 50 mmHg	8 (3%)	6 (3.7%)	2 (2%)	0.714
Planned pregnancy or major surgery	9 (3.4%)	9 (5.5%)	0 (0%)	0.018
Preprocedural Echocardiographic data
Wilkins’ score	8.59 ± 1.85	8.10 ± 1.56	9.47 ± 2.01	< 0.001
Wilkins’ score ≥ 8, (%)	192 (72.7%)	112 (68.3%)	80 (80%)	< 0.001
MVA by planimetry, cm2	0.91 ± 0.30	0.94 ± 0.27	0.85 ± 0.32	0.016
MVA by PHT, cm2	0.96 ± 0.28	0.98 ± 0.26	0.89 ± 0.27	0.005
Mean PG, mmHg	12.67 ± 5.81	12.74 ± 6.11	12.56 ± 5.5	0.823
RVSP, mmHg	54.77 ± 22.77	54.19 ± 23.10	55.70 ± 21.23	0.631
Mean PAP, mmHg	32.83 ± 12.00	34.48 ± 13.50	31.58 ± 11.27	0.269
Follow up time*,month	62.0 (28.0, 102.0)	62.5 (27.25, 101.0)	57.0 (28.25, 102.75)	0.966

* Median with interquartile range

GFR = Glomerular filtration rate, MVA = Mitral valve area, MVR = Mitral valve replacement, PAP = Pulmonary arterial pressure, PHT = Pressure-half time, PG = pressure gradient, PTMC = Percutaneous mitral commissurotomy, RVSP = Right ventricular systolic pressure, SPAP = Systolic pulmonary arterial pressure.