Table 1.

Algorithm evaluation of LVDD [9].

Normal EF (≥50%)	1. Average E/e’ > 14 2. Septal e’ velocity < 7 cm/s or lateral e’ velocity < 10 cm/s 3. TR velocity max > 2.8 m/s 4. LAVI > 34 mL/m2	1st criteria fulfilled			Normal LVDD
		2nd criteria fulfilled			Indeterminate LVDD
		3rd or 4th criteria fulfilled			Abnormal LVDD
Depressed EF (<50%)	E/A ≤ 0.8 + E ≤ 50 cm/s				Grade I LVDD
	E/A ≤ 0.8 + E > 50 cm/s or 0.8 < E/A < 2	When possible assessment of 3 criteria: 1. Average E/e’ >14 2. TR velocity >2.8 m/s 3. LAVI > 34 mL/m2	2 of 3 or 3 of 3 Negative
			When only 2 criteria are available	2 negative
				1 positive and 1 negative	Indeterminate LVDD
				1 negative	Grade II LVDD
			2 of 3 or 3 of 3 Positive
	E/A ≥ 2				Grade III LVDD

LVDD, left ventricular diastolic dysfunction; EF, ejection fraction; E, peak early diastolic velocity; e’, early diastolic mitral annular tissue velocity; TR, tricuspid regurgitation; LAVI, left atrial volume index; A, peak late diastolic velocity; cm, centimeter; s, second; m, meter; ml, milliliter.