Table 3.
Univariate analysis of demographic, echocardiographic, and catheterization features of patients who underwent PTMC
| Successful n=197 (%) | Unsuccessful n=61 (%) | P value | |
|---|---|---|---|
| Age, years | 0.29 | ||
| ≤30 | 117 (59.3) | 41 (67.2) | |
| >30 | 80 (40.6) | 20 (32.7) | |
| BSA, m2 | 0.03 | ||
| ≤1.3 | 28 (14.2) | 16 (26.2) | |
| >1.3 | 169 (85.7) | 45 (73.7) | |
| Height, cm | 0.17 | ||
| ≤150 | 59 (29.9) | 24 (39.3) | |
| >150 | 138 (70.0) | 37 (60.6) | |
| Weight, kg | 0.19 | ||
| ≤45 | 66 (33.5) | 26 (42.6) | |
| >45 | 131 (66.4) | 35 (57.3) | |
| Echo features | |||
| Annulus size, mm | 0.001 | ||
| ≤33 | 99 (50.2) | 45 (73.7) | |
| >33 | 98 (49.7) | 16 (26.2) | |
| MVA, cm2 | 0.04 | ||
| <0.9 | 117 (59.3) | 45 (73.7) | |
| ≥0.9 | 80 (40.6) | 16 (26.2) | |
| MPG across MV, mm Hg | 0.80 | ||
| ≤12 | 45 (22.8) | 13 (6.5) | |
| >12 | 152 (77.1) | 48 (24.3) | |
| RV pressure, mm Hg | 0.002 | ||
| ≤60 | 95 (48.2) | 16 (26.2) | |
| >60 | 102 (51.7) | 45 (73.7) | |
| LA size, mm | 0.88 | ||
| ≤45 | 86 (43.6) | 26 (42.6) | |
| >45 | 111 (56.3) | 35 (57.3) | |
| Cath findings | |||
| RV systolic pressure, mm Hg | 0.006 | ||
| ≤90 | 164 (83.2) | 40 (65.5) | |
| >90 | 33 (16.7) | 21 (34.4) | |
| Mean LA pressure, mm Hg | 0.10 | ||
| ≤25 | 36 (18.2) | 17 (27.8) | |
| >25 | 161 (81.7) | 44 (72.1) | |
| LVEDP mm Hg | 0.55 | ||
| <18 | 165 (83.7) | 53 (86.8) | |
| ≥18 | 32 (16.2) | 08 (13.1) | |
| Mean PG across MV, mm Hg | 0.96 | ||
| <12 | 35 (17.7) | 11 (18.0) | |
| ≥12 | 162 (82.2) | 50 (81.9) | |
LA - left atrium; LVEDP - left ventricular end-diastolic pressure; MV - mitral valve; MPG - mean pressure gradient; MVA - mitral valve area; PTMC - percutaneous transvenous mitral commissurotomy; RV - right ventricle