1. The four recommended variables for identifying diastolic dysfunction and their abnormal cutoff values are:
- Annular e’ velocity: septal e’ < 7 cm/sec, lateral e’ < 10 cm/sec
- Average E/e’ ratio > 14
- LA volume index > 34 mL/m2
- Peak TR velocity > 2.8 m/sec
2. LV diastolic function is normal if more than half of the available variables do not meet the cutoff values for identifying abnormal function. LV diastolic dysfunction is present if more than half of the available parameters meet these cutoff values. The study is inconclusive if half of the parameters do not meet the cutoff values.