Haemodynamic measurements and echocardiographic data after PMV of the entire patient population and after stratification according to the cardiovascular mortality
| Postprocedural values | Overall population (n=427) | Survivors (n=378) | Deceased (cardiovascular death) (n=41) | p Value |
| Echocardiographic data* | ||||
| Mitral valve area (cm2) | 1.57±0.31 | 1.59±0.30 | 1.29±0.29 | 0.001 |
| Moderate MR (n (%)) | 103 (24) | 87 (23) | 15 (37) | 0.017 |
| Severe MR (n (%)) | 23 (5) | 21 (5) | 2 (5) | 0.746 |
| Peak gradient (mm Hg) | 14.4±5.4 | 13.9±5.1 | 17.9±6.1 | 0.001 |
| Mean gradient (mm Hg) | 6.6±2.6 | 6.4±2.5 | 7.9±2.9 | 0.002 |
| LAV index (mL/m2) | 61.2±30.5 | 59.9±29.3 | 73.9±37.3 | 0.035 |
| SPAP (mm Hg) | 44.1±15.8 | 42.3±14.1 | 61.0±18.7 | <0.001 |
| RVFAC (%) | 48.5±9.8 | 49.2±9.4 | 42.1±11.1 | 0.001 |
| Moderate or severe TR (n (%)) | 86 (20) | 65 (17) | 20 (49) | <0.001 |
| Haemodynamic data | ||||
| LA pressure (mm Hg) | 17.7±6.5 | 17.6±6.4 | 18.2±7.2 | 0.698 |
| Mean PAP (mm Hg) | 31.1±11.8 | 30.2±11.3 | 38.3±14.1 | 0.002 |
| Cardiac index (L/min/m2) | 2.8±0.8 | 2.9±0.8 | 2.3±0.6 | 0.024 |
| TPG (mm Hg)† | 11 (7/17) | 11 (7/16.3) | 21 (7/26.5) | 0.049 |
| PVR (wood unit) | 2.6 (1.5/4.2) | 2.5 (1.5/4.1) | 2.8 (2.1/5.9 | 0.122 |
Data are expressed as the mean value±SD, median (IQR) or absolute numbers (percentage).
*Twenty four hours after PMV.
†In those patients who developed procedural complications, especially severe mitral regurgitation, these parameters were excluded from the analysis.
LA, left atrium; LAV, left atrial volume; MR, mitral regurgitation; PAP, pulmonary artery pressure; PMV, percutaneous mitral valvuloplasty; PVR, pulmonary vascular resistance; RVFAC, right ventricular fractional area change; SPAP, systolic pulmonary artery pressure; TPG, transpulmonary pressure gradient; TR, tricuspid regurgitation.