. 2013 Aug;144(2):638–650. doi: 10.1378/chest.12-2114

Table 3.

—Typical Echocardiographic Findings in PAH and PH Due to HFpEF

PAH	PH Due to HFpEF
RAE^65,72,73	LAE^65,74
RVH⁶⁵	LVH⁷⁵
Flattening and leftward bowing of the interventricular septum^72,73
E′ > 12 cm/s⁷⁶	E′ ≤ 8 cm/s⁷⁶
E/E′ < 8^76,77	E/E′ > 15^74,76,78

E = early mitral flow velocity; E′ = early mitral annular tissue Doppler velocity; HFpEF = heart failure with preserved ejection fraction. See Table 1 and 2 legends for expansion of other abbreviations.