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Table 7

Additional operative and ICU characteristics.

Standard Prime (n = 417) PBUF (n = 704) P value
Phenylephrine usage during bypass (mcg) 60 [4, 160] 60 [7, 156] 0.85
Ultrafiltration total (n = 405, 678) 500 [350, 750] 563 [350, 850] 0.17
ICU 24 hour output volume 414 [272, 567] 416 [307, 571] 0.26
Preoperative Total Dose
 Dopamine dose > 0 mg 10 (2%) 36 (5%) 0.029
 Epinephrine dose > 0 mg 7 (2%) 28 (4%) 0.033
 Milrinone dose > 0 mg 14 (3%) 21 (3%) 0.73
Intraoperative Total Dose
 Dopamine dose > 0 mg 327 (78%) 567 (81%) 0.40
 Epinephrine dose > 0 mg 185 (44%) 349 (50%) 0.095
 Milrinone dose > 0 mg 47 (11%) 80 (11%) 1.0
Intraoperative Maximum Rate
 Dopamine (mcg/kg/min) (n = 327, 567) 7 [5, 10] 7.5 [5, 10] 0.89
 Epinephrine (mcg/kg/min) (n = 166, 297) 0.08 [0.05, 0.10] 0.08 [0.05, 0.10] 0.94
 Milrinone (mcg/kg/min) (n = 45, 73) 0.50 [0.50, 0.75] 0.50 [0.50, 0.50] 0.55
Postoperative Total Dose
 Dopamine dose > 0 mg 131 (31%) 201 (29%) 0.31
 Epinephrine dose > 0 mg 134 (32%) 263 (37%) 0.081
 Milrinone dose > 0 mg 115 (28%) 192 (27%) 0.94
Postoperative Maximum Rate
 Dopamine (mcg/kg/min) (n = 147, 249) 5.0 [3.0, 5.0] 5.0 [3.0, 5.0] 0.60
 Epinephrine (mcg/kg/min) (n = 142, 268) 0.05 [0.03, 0.07] 0.05 [0.02, 0.07] 0.93
 Milrinone (mcg/kg/min) (n = 117, 191) 0.50 [0.50, 0.50] 0.50 [0.50, 0.50] 0.25

Values shown are number (percent) or median [25th, 75th percentiles].

hr: hours; ICU: intensive care unit; kg: kilograms; mcg: microgram; mg: milligrams; min: minutes; mu: milliunits; PBUF: pre-bypass ultrafiltration.

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