Daily the investigators will monitor IL-1, 6, 8, 10 and TNF alpha while at ICU (during first 5 days), SOFA score will be calculated and IAP will be measured. The investigators will further monitor frequency of VAC exchanges; number of administrated transfusions; duration of UPV; days without oral intake and without possibility of physiotherapy - walking (parameters of recovery. Conscious patients will be submitted form for assessment of life quality (SF-36) on the 7th postoperative day. The investigators will further monitor pain using VAS.