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Early prediction and diagnosis of perforation in acute appendicitis allow surgeons to choose the most appropriate treatment. The purpose of this study is to evaluate whether pre-operative routine laboratory examinations have a role in predicting complicated acute appendicitis.In the study, 783 patients operated with the diagnosis of acute appendicitis between the years 2014 and 2019 were analyzed retrospectively. Among the patients with non-perforated and perforated acute appendicitis, pre-operative laboratory tests include leukocyte (WBC), neutrophil, lymphocyte, platelet (PLT), mean platelet volume (MPV), platelet distribution width (PDW), C-reactive protein (CRP), and neutrophil-to-lymphocyte rate (NLR) parameters were compared.Appendicitis was not detected histopathologically in 81 cases. In the study, 89.9% (n=631) of the 702 patients were non-perforated and 10.1% (n=71) were perforated acute appendicitis cases. Perforation rate was higher in elderly patients (p0.01). It was seen that lymphocyte count was significantly lower in the perforated group, and CRP and NLR were significantly higher (p=0.048, p=0.001, p=0.028, respectively). In the diagnosis of perforated acute appendicitis, cutoff values were 44.0 mg/dL for CRP, 7.65 for NLR and 1.7/mm3 for lymphocytes. There was no statistical difference between the groups in terms of WBC, neutrophil, PLT, MPV, and PDW values.Low lymphocyte count, high CRP, and high NLR were found to be reliable and strong predictive parameters in the diagnosis of complicated acute appendicitis.

Acute pancreatitis (AP) is a disease related to significant morbidity and even mortality. Various factors are involved in the etiology, especially gallstones and excessive alcohol consumption. Although, the course of the disease in most of the cases is generally mild, in some cases, the disease can be severe and lead to pancreatic or peripancreatic necrosis. Radiologically, 'Balthazar computed tomography severity index' (CTSI) is used to assess the severity and presence of necrosis in pancreatitis. In this study, we classified the severity of AP in patients with Balthazar CTSI and investigated whether there is a correlation between some serum parameters and AP severity and which serum parameters can be used as a safe marker to predict the AP severity and the development of pancreatic necrosis (PN).A total of 341 patients diagnosed with AP and hospitalized in our general surgery clinic between the years 2012 and 2018 were included in this study. Hematological and biochemical parameters of the patients were recorded. Abdominal CT's of the patients were evaluated according to the Balthazar CTSI. The correlation between these parameters and AP severity evaluated by Balthazar CTSI was investigated.PN was detected in 19.4% of 341 patients who participated in the study. Patients whose PN detected in their abdominal CT's by Balthazar CTSI; neutrophil counts, neutrophil/lymphocyte ratio (NLR), thrombocyte/lymphocyte ratio, plateletlymphocyte ratio, and neutrophil/monocyte ratio (NMR) were significantly higher and the serum albumin was significantly lower than patients with PN.Neutrophil count, serum albumin levels, NLR, LR, and NMR can be used as predictive markers to determine AP severity.