Predictive and prognostic value of L-lactate, D-dimer, leukocyte, C-reactive protein and neutrophil/lymphocyte ratio in patients with acute mesenteric ischemia.

Acute mesenteric ischemia (AMI) is a disease that causes an ischemia in the intestines due to the obstruction of the mesenteric vessels feeding the intestines, with a mortality rate reaching up to 80%. The overall incidence of AMI is 0.63 per 100,000 people. Early diagnosis and treatment are very important for survival. There is no ideal biomarker that can reflect different types and stages of AMI. This study investigated the predictive and prognostic value of L-lactate, D-dimer, leukocyte, C reactive protein (CRP) and neutrophil/lymphocyte ratio (NLR) in the preoperative period were investigated in patients operated for AMI.A total of 44 patients operated for AMI between 2015 and 2019 were evaluated in this study. Demographic, clinical, radiological, laboratory and surgical findings of the patients included in this study were recorded. The patients were divided into groups according to the etiological type of AMI. L-lactate, D-dimer, CRP, leukocyte, and NLR levels of these patients were determined. Statistical analysis was performed according to AMI groups.The mean age of the 44 patients included in this study was 67.7 years and the female to male ratio was 0.76. According to tomography results, 31.8% (n=14) of the patients had mesenteric artery embolism, 29.5% (n=13) had mesenteric artery thrombus, 25% (n=11) had mesenteric vein thrombus and 13.6% (n=6) had non-occlusive mesenteric ischemia. When AMI types were compared, D-dimer and CRP levels were found to be significantly different from other markers. The total length of stay in the hospital was found to be significantly correlated with the L-lactate (p=0.047) and CRP (p=0.045) levels. In the analyses, CRP was determined to be the common biomarker that could be used in the diagnosis of mesenteric ischemia in all AMI types.Particularly, the CRP level can be used effectively in the preoperative period to diagnose AMI and to determine its subtype and clinical course. However, L-lactate, D-dimer, leukocyte and NLR are markers that have no predictive value in the diagnosis of all AMI subtypes.