Prediction of Postoperative Complications

After surgery complications are usual. While significant problems following major abdominal surgery are commonly estimated to be approximately 25% the frequency of any postoperative unwanted outcome following major abdominal surgery has been estimated to be as high as 50%–60%. Despite modern surgical methods and preventive perioperative medication surgery stimulates an immediate inflammatory process over a stress reaction and some major consequences such as surgical site infection sepsis and multiple organ failure may emerge in the early postoperative period. The neutrophil/lymphocyte ratio (NLR) and the platelet/lymphocyte ratio (PLR) are two inexpensive repeatable and quantitative indicators of systemic inflammation.