Functional transition: Inconsistently parallel to the increase in future liver remnant volume after preoperative portal vein embolization

Table 2 Comparison of the initial liver function, future liver remnant volume, and functional future liver remnant volume between the groups with and without preoperative biliary drainage

	Group with preoperative biliary drainage (n = 17)	Group without preoperative biliary drainage (n = 16)	P value
ICGR15 (%), mean ± SD	9.09 ± 5.0	11.2 ± 7.2	0.28
Initial resection ratio (%), mean ± SD	64.6 ± 6.36	64.4 ± 4.57	0.692
Initial FLRV (mL), mean ± SD	403.8 ± 88.6	418.4 ± 70.3	0.402
Initial FFLRV (mL), mean ± SD	366.4 ± 118.7	384.0 ± 92.7	0.601
FLRV at 1 wk (mL), mean ± SD	515.7 ± 100.9	515.0 ± 101.1	0.914
FFLRV at 1 wk (mL), mean ± SD	592 ± 114.0	583.0 ± 101.0	0.986
FLRV at 2 wk (mL), mean ± SD	550.1 ± 86.6	561.1 ± 114.5	0.958
FFLRV at 2 wk (mL), mean ± SD	640.0 ± 105.8	613.0 ± 96.6	0.382

ICGR₁₅: Indocyanine green retention at 15 min; SD: Standard deviation; FLRV: Future liver remnant volume; FFLRV: Functional future liver remnant volume.