Clinical characteristics of four age groups of patients who had mitral balloon valvotomy
| Age group (years) | p Value | ||||
|---|---|---|---|---|---|
| <40 | 40–54 | 55–69 | ⩾70 | ||
| Values are mean (SD) or n (%). | |||||
| LA, left atrial; LV, left ventricular; MVR, mitral valve replacement; NYHA, New York Heart Association; RF, rheumatic fever; TOE, transoesophageal echocardiography; Vty, previous valvotomy. | |||||
| Number of patients | 19 (5%) | 101 (25%) | 173 (43%) | 112 (28%) | |
| Age (years), mean | 34.2 (6.0) | 47.7 (4.3) | 61.6 (4.3) | 75.5 (4.4) | |
| Female | 15 (79%) | 77 (76%) | 134 (77%) | 95 (85%) | 0.32 |
| Past history of RF | 4 (21%) | 38 (38%) | 72 (42%) | 44 (39%) | 0.32 |
| Past history of Vty | 1 (5%) | 23 (23%) | 44 (25%) | 20 (18%) | 0.14 |
| Sinus rhythm | 15 (79%) | 41 (41%) | 39 (23%) | 17 (15%) | <0.001 |
| Mitral reflux | 5 (26%) | 28 (28%) | 61 (35%) | 49 (44%) | 0.09 |
| LV impairment | 1 (5%) | 4 (4%) | 23 (13%) | 15 (13%) | 0.06 |
| Coronary disease | 0 (0%) | 5 (5%) | 39 (23%) | 43 (38%) | <0.01 |
| Aortic valve disease | 2 (11%) | 17 (17%) | 24 (24%) | 26 (23%) | 0.19 |
| NYHA symptom score | 2.5 (0.7) | 2.7 (0.7) | 2.9 (0.7) | 3.3 (0.6) | <0.001 |
| Frusemide dose (mg/day) | 34 (37) | 53 (38) | 72 (71) | 97 (66) | <0.001 |
| Fluoroscopic calcification | 0.1 (0.2) | 0.4 (0.9) | 0.8 (1.1) | 1.2 (1.2) | <0.001 |
| Echo score | 4.4 (1.8) | 5.5 (2.4) | 6.7 (2.8) | 7.9 (3.1) | <0.001 |
| Commissure calcification grade | 0.16 (0.37) | 0.30 (0.67) | 0.48 (0.81) | 0.49 (0.76) | 0.21 |
| LA thrombus in patients having TOE | 0/13 (0%) | 6/76 (8%) | 14/127 (11%) | 15/88 (18%) | <0.05 |
| Unsuitability for MVR | 0 (0%) | 5 (5%) | 36 (21%) | 67 (60%) | <0.001 |
| Parsonnet score | 10.2 (5.6) | 10.0 (5.1) | 12.5 (5.3) | 24.6 (8.6) | <0.001 |