Table 3. New Guidelines for Diagnosis of LV Diastolic Dysfunction Based on TTE.

Average E/E’ > 14
Septal E’ < 7 cm/s or Lateral E’ < 10 cm/s
TR velocity > 2.8 m/s
LA volume index > 34 ml/m2
Normal EF	Depressed EF or Normal EF with myocardial disease
Diastolic dysfunction	Normal LAP Grade I	Increased LAP Grade II	Increased LAP Grade III
Positives greater than half of the above criteria	E/A < 0.8 + E ≤ 50 cm/s And Negatives over half of the above criteria When E/A < 0.8 + E > 50 cm/s or 0.8 < E/A < 2.0	Positives over half of the above criteria When E/A < 0.8 + E > 50 cm/s or 0.8 < E/A < 2.0	E/A ≥ 2.0

TR: tricuspid regurgitation, LA: left atrium, EF: ejection fraction, LAP: left atrial pressure.