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. Author manuscript; available in PMC: 2010 Nov 1.
Published in final edited form as: Circ Cardiovasc Imaging. 2009 Sep 22;2(6):444–450. doi: 10.1161/CIRCIMAGING.108.823732

Table 2. Echocardiographic Parameters at Baseline (Pre-CRT) and 6-Month Follow-Up (Post-CRT).

Pre-CRT Post-CRT P
MR (RV-ml) 35±17 23±14 <0.001
EDV, mL 253±111 221±100 <0.001
ESV, mL 206±97 167±91 <0.001
EF, % 19±6 27±9 <0.001
MAA, cm2 11.6±3.5 10.5±3.1 <0.001
MAA contr, % 4±0.9 8±0.6 0.1
TV, mL 5.7±2.6 4.6±2.2 <0.001
Leaflet closing area, cm2 15.4±4 13.7±3.8 <0.001
Closing pressure ratio 0.77±0.1 0.84±0.1 0.01
dP/dt, mm Hg/s 534±202 794±362 <0.001
MTD, ms 102±34 108±36 0.2
Ts-SD, ms 36±13 40±14 0.07
SLD, ms 43±30 53±42 0.1
PMs Dys, ms 54±36 60±33 0.4

RV indicates regurgitant volume; TV, tenting volume; PMs Dys, interpappilary muscle dyssynchrony.