Table 2.

Perioperative Characteristics in Patients Undergoing First-Stage and Second-Stage Resection

Characteristic	No.	%
First-stage resection	65
Major liver resection (> three contiguous liver segments)	2	3
Radiofrequency ablation	2	3
Associated resection of primary tumor	19	29
No. of lesions resected during first stage
Mean ± SD	2 ± 1.7
Median	1
Range	1-8
Largest diameter of tumors resected during first stage in cm
Mean ± SD	2 ± 2
Median	1.4
Range	0.4-15
Estimated blood loss, mL
Mean ± SD	215 ± 222
Median	150
Range	50-1,300
Transfusion	1	2
Postoperative 90-day deaths	0	0
Postoperative complications	16	25
Major postoperative complications	2	3
Length of hospital stay, days
Mean ± SD	7 ± 2.4
Median	6
Range	4-14
Positive margins	10	15
Second-stage resection	47
Major liver resection (> three contiguous liver segments)	40	85
Extended liver resection (> four contiguous liver segments)	32	68
Type of resection
Right hemihepatectomy	8
Left hemihepatectomy	1
Extended right hepatectomy	22
Extended left hepatectomy	10
Segmental resection	6
Estimated blood loss, mL
Mean ± SD	500 ± 350
Median	400
Range	50-1,950
Transfusion	6	13
Postoperative 90-day deaths	3	6.4
Complications	23	49
Major complications	12	26
Hepatic insufficiency*	4	6
Fluid collection	13	27
Length of hospital stay in days
Mean ± SD	8 ± 6.6
Median	7
Range	4-50
Positive margins	10	21

Abbreviation: SD, standard deviation.

^*Postoperative hepatic insufficiency was defined as bilirubin peak > 7 mg/dL.²³