Monitoring of inflammatory substances (such as interleukins, CRP, albumine), and markers of organ dysfunction (such as creatinine, proenkephaline, amylase, troponine, IFABP and lactate) during elective liver resection. The study also includes monitoring of hemodynamic parameters, blood loss and postoperative complications. Results are to be used för power calculation for future trials.

During hepatic surgery, blood and urine samples will be obtained at 3 times during surgery, at 3 h after resection of liver, at 24 h after resection of liver and at post operative day 2, and subsequntly analyzed for the above mentioned substances. Routine labs will be monitored until patient is discharged from hospital. During surgery, hemodynamic parameters will be monitored by Picco calculations. Urine output and blood loss will be registred.

Inclusion Criteria:

ASA I-III Patient has given informed consent to participate in study.

Exclusion Criteria:

preoperative kidney failure (E-GFR >30), current infection treatment with corticosteroids coagulopathy surgical or anatomical conditions that makes patient unsuitable for participation (for example reoperation, need of vascular bypass, single tumor)

patients scheduled for open liver resection, ASA class I-III.