Research Article

Renal Dysfunction Is an Independent Risk Factor for Mortality after Liver Resection and the Main Determinant of Outcome in Posthepatectomy Liver Failure

Table 4

Univariate and multivariate analysis of preoperative and operative factors as well as postoperative blood tests associated with 90-day mortality following liver resection in 495 patients.

Univariate
Multivariate
Factor (preoperative and operative factors and postoperative blood tests)Coef (95% CI)P valueCoef (95% CI)P value

Age1.05 (1.01–1.10)0.029*0.194
Gender2.36 (0.91–6.08)0.077*0.196
Pathology 0.274
Liver directed chemotherapy0.356
Diabetic3.09 (1.16–8.20)0.024*3.41 (1.14–10.23)0.028**
BMI0.444
ASA grade
 1 versus 23.02 (0.70–13.11)0.139*0.678
 2 versus 30.724
Physiologic score1.12 (1.03–1.22)0.010*0.544
Operative score0.303
P-POSSUM mortality1.04 (1.01–1.07)0.010*0.479
Fibrosis/cirrhosis0.986
Preoperative bilirubin1.01 (1.00–1.03)0.081*0.652
Preoperative haemoglobin0.71 (0.55–0.93)0.012*0.195
Preoperative white cell count0.388
Preoperative albumin0.90 (0.84–0.96)0.002*0.168
Preoperative alkaline phosphatase0.884
Preoperative creatinine1.01 (1.00–1.02)0.098*0.764
Preoperative neutrophil lymphocyte ratio1.13 (0.98–1.31)0.086*0.366
Preoperative neutrophil lymphocyte ratio >52.18 (0.78–6.11)0.138*0.345
Open or laparoscopic resection0.987
Radiofrequency ablation (RFA) included0.991
Wedge resection included0.588
Bile duct reconstruction included2.96 (1.05–8.39)0.041*0.383
Synchronous bowel procedure0.346
Operation number0.549
Number of segments resected1.59 (1.18–2.14)0.003*0.075
Number of procedures0.786
Surgeons assessment of liver parenchyma2.14 (0.92–4.96)0.076*0.494
Blood loss (mL)
 <500 versus >5002.67 (1.27–5.61)0.009*0.716
 >500 versus >10000.652
Units of red cells transfused1.13 (1.02–1.26)0.023*0.224
PHLF at POD 51.02 (1.01–1.03)<0.001*4.51 (1.42–14.40)0.011**
Renal dysfunction (creatinine rise >1.5x)1.02 (1.01–1.03)<0.001*3.63 (1.13–11.66)0.030**

Significant at the level of 0.25 for univariate analysis and included in multivariate analysis.
Significant at the level of 0.05 for multivariate analysis.