Table 1.
Clinical characteristics of patients with mitral valve prolapse
| Characteristics | Cases (n = 100) | Subset (n = 12) |
|---|---|---|
| Age (years) | 61.1 ± 14.7 | 58.3 ± 13.1 |
| Gender (% male) | 54 | 58 |
| Diabetes (%) | 4 | 0 |
| Hypertension (%) | 35 | 25 |
| BMI (kg/m2) | 24.3 ± 3.8 | 24.2 ± 3.1 |
| Cholesterol (mmol/L) | 5.1 ± 1.1 (2) | 5.4 ± 1.0 |
| Triglycerides (mmol/L) | 1.2 ± 0.7 (2) | 1.2 ± 0.4 |
| LDL (mmol/L) | 2.8 ± 1.0 (2) | 3.1 ± 0.9 |
| HDL (mmol/L) | 1.7 ± 0.5 (2) | 1.8 ± 0.5 |
| Effective regurgitant orifice area (mm2) | 29.0 ± 14.5 | 29.8 ± 17.3 |
| Regurgitant volume (ml) | 54.5 ± 28.1 | 60.0 ± 47.9 |
| Valve leaflet prolapse or flail | ||
| Anterior leaflet prolapse (%) | 12 | 17 |
| Posterior leaflet prolapse (%) | 26 | 25 |
| Bileaflet prolapse (%) | 30 | 25 |
| Posterior leaflet flail (%) | 17 | 25 |
| Valve leaflet remodeling with no prolapse or flail (%) | 12 | 8 |
| Parachute valvea (%) | 1 | 0 |
| Unknown (%) | 2 | 0 |
| Clinical events during follow‐upb | ||
| Cardiac arrest (%) | 1 | 0 |
| Heart failure (%) | 2 | 0 |
| Atrial fibrillation (%) | 9 | 8 |
| Ventricular arrhythmia (%) | 2 | 0 |
| None (%) | 86 | 92 |
| Surgery during follow‐upb | ||
| Mitral valve repair (%) | 33 | 33 |
| Mitral valve replacement (%) | 14 | 17 |
| None (%) | 52 | 50 |
| Unknown (%) | 1 | 0 |
| Concomitant coronary artery bypass grafting (%) | 3 | 0 |
| Concomitant implantation of a defibrillator (%) | 1 | 0 |
Continuous variables are M ± SD. Number of missing values is shown in parenthesis when applicable.
a
Congenital abnormality, all chordae tendineae of both leaflets are inserted in a single papillary muscle.
b
All patients were asymptomatic and free of previous surgery at baseline. Clinical events and surgeries have occurred during the follow‐up.