• Hüseyin Onur Aydın, Tevfik Avcı, Tugan Tezcaner, Mahir Kırnap, Sedat Yıldırım, and Gökhan Moray.
• Department of General Surgery, Başkent University Faculty of Medicine, Ankara-Turkey. dronuraydin@hotmail.com.
• Ulus Travma Acil Cer. 2018 Sep 1; 24 (5): 429-433.

BackgroundIn this study, we aimed to investigate the factors causing conversion from laparoscopic appendectomy (LA) to open appendectomy (OA) in patients with acute appendicitis and to investigate the role of preoperative C reactive protein (CRP) and neutrophil ratio in this conversion and determine a cut-off point for these parameters.MethodsRecords of patients who underwent LA due to acute appendicitis at our general surgery department between January 2011 and January 2017 were retrospectively evaluated. The preoperative American Society of Anesthesiology (ASA) scores, Alvarado scores, white blood cell count, C-reactive protein level, and neutrophil ratio were evaluated.ResultsLA was performed in 394 patients with an initial diagnosis of acute appendicitis. A conversion to OA (cOA) was performed in 17 patients (4.31%). A CRP value of ≥108.5 mg/L and a neutrophil ratio of ≥81.5% were found to be statistically significant for the cOA (p<0.001).ConclusionOur study results showed that male gender, age, elevated neutrophil ratio, and CRP value were the main risk factors for cOA in patients who were scheduled for LA due to acute appendicitis.

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