Table 2.

Secondary endpoints after randomizations.

Secondary outcomes	Number of studies	95% CI	P (heterogeneity)	I 2 (%)	P (overall effect)
Cardiac index (L/min/m2)	7	0.66 [0.62, 0.70]	<0.00001	89	<0.00001
Pulmonary capillary wedge pressure (mmHg)	7	−2.35 [−2.78, −1.93]	0.001	73	<0.00001
Postoperative atrial fibrillation	11	0.97 [0.85, 1.09]	0.0006	68	0.60
Postoperative renal replacement therapy	8	0.51 [0.33, 0.77]	0.86	0	0.002
Length of ICU stay (days)	10	−0.48 [−0.72, −0.24]	<0.00001	85	<0.0001