Risk factors for acute kidney injury after partial hepatectomy

Table 3 Intraoperative characteristics of the 446 liver resections according to the occurrence of postoperative acute kidney injury n (%)

	No AKI (n = 366)	AKI (n = 80)	P
Surgical approach			0.071
Open	343 (93.7)	79 (98.8)
Laparoscopic	23 (6.3)	1 (1.2)
Extention of resection			0.002
Major resection	128 (35.2)	45 (56.2)
Minor resection	238 (64.8)	35 (43.8)
Tumoral histology			0.134
Benign	70 (19.1)	6 (7.5)
Malignant	296 (80.9)	74 (92.5)
Segment I resection	23 (6.3)	8 (10.0)	0.098
Two-stage hepatectomy	26 (7.1)	6 (7.5)	0.439
Intermitent Pringle maneuver (15’\5’)	124 (33.9)	31 (38.8)	0.438
Continuous Pringle maneuver	26 (7.1)	10 (12.5)	0.254
Total vascular exclusion	6 (1.6)	2 (2.5)	0.212
Complex vascular reconstruction	6 (1.6)	1 (1.2)	0.634
Regional lymphadenectomy	86 (23.5)	25 (31.2)	0.155
Associated extrahepatic resection	27 (7.4)	10 (12.5)	0.103
Intraoperative instability	26 (7.1)	25 (31.2)	< 0.001
Red blood cell transfusion	31(8.5)	23 (28.8)	< 0.001

AKI: Acute kidney injury.