Table 3.

Percent change in echocardiographic variables between the start and the end of the first weaning trial (n = 31), according to outcome (success or failure)

	All n = 31	Success n = 16	Failure n = 15	p
Delta s′a	− 3% (− 12%; 9%)	− 3% (− 7%; 5%)	− 2% (− 15%; 9%)	0.872
Delta e′	− 3% (− 12%; − 4%)	3% (− 9%; 6%)	− 6% (− 18%; − 3%)	0.02
Delta E	13% (8%; 19%)	12% (7%; 16%)	14% (11%; 23%)	0.20
Delta E/e′	16% (9%; 25%)	10% (4%; 14%)	26% (20%; 28%)	< 0.01

Data are presented as median (1st quartile; 3rd quartile)

s′ peak systolic velocity at the lateral mitral valve annulus, e′ early peak diastolic velocity of mitral annulus, E early diastolic velocity measured using Doppler transmitral flow

^as′ could not be assessed in three patients