Table 2.
Predictors | Points |
---|---|
• Previous cardiac event: heart failure, transient ischaemic attack, cerebrovascular accident or arrhythmia | 1 |
• New York Heart Association class > II or cyanosis | 1 |
• Left heart obstruction: Mitral valve area < 2 cm2 or aortic valve area < 1.5 cm2 or peak left ventricular outflow tract obstruction >30 mmHg on echocardiogram | 1 |
• Reduced left ventricular function (ejection fraction < 40%) | 1 |
Risk score | Frequency of maternal cardiac complications |
---|---|
0 | 5% |
1 | 27% |
≥2 | 75% |