• Amir Mari, Mahmud Mahamid, Helal Said Ahmad, Ahmad Lubany, Sami Abu El Hija, Nadeem Shorbaji, Anas Kadah, George Daud, Fadi Abu Baker, Wisam Sbeit, and Tawfik Khoury.
• Department of Gastroenterology and Hepatology, Nazareth Hospital EMMS, Nazareth, Israel.
• Isr Med Assoc J. 2020 May 1; 22 (5): 294-298.

BackgroundBariatric surgery has become the most common and effective therapeutic option for obesity. However, it is associated with morbidity and complications. Identification of predictors for surgical complications is an unmet need.ObjectivesTo determine a simple non-invasive parameter that predicts early postoperative complications following bariatric surgery.MethodsIn this retrospective study of all patients who underwent elective bariatric surgery at Nazareth Hospital EMMS during a 4-year period (2015-2018). We collected clinical and laboratory parameters and determined predictors of complications.ResultsA total of 345 patients underwent bariatric surgery during the study period. Of the patients, 51 experienced early post-bariatric surgery complications as compared to 294 patients who had no complications. Univariate analysis revealed that neutrophil-to-lymphocyte ratio (NLR) (odds ratio [OR] 1.912, P < 0.0001) and platelet to lymphocyte ratio (OR 1.015, P < 0.0001) were associated with post-bariatric surgery complications. In a multivariate logistic regression analysis, only NLR remained a significant predictor (OR 1.751, 95% confidence interval 1.264-2.425, P = 0.0008) with a receiver operating characteristic curve for NLR of 0.8404.ConclusionsWe found that the NLR predicts post bariatric surgery early complications. Further prospective studies are needed to validate our findings.

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