The Bedel Score: Suggesting a New Scoring System to Avoid Negative Appendectomy

Introduction: Scoring systems are still valuable and valid for differential diagnosis of acute appendicitis (AA). Bedel Score is a new diagnostic tool with 7 parameters that can be easily applied. The aim of this study is to determine the diagnostic performance of the Bedel score in AA and compare it with the Alvarado score. Methods: Our study consisted of 95 patients as a prospective cohort who were admitted to our emergency department due to abdominal pain and were hospitalized with a preliminary diagnosis of AA. Bedel and Alvarado scores were calculated. The patients were categorized into two groups (positive and negative appendectomy) according to their histopathological diagnosis. Results: The study population consisted of 65 (68.4%) male and 30 (31.6%) female patients. The mean age of the patients was 34 (18-87) years. 81 (85.3%) of the patients had histopathologically confirmed AA. Median Alvarado score was significantly higher in patients with positive AA than those with negative AA (7 (range: 3-10) vs. 5 (range 3-7), p<0.001, respectively). Median Bedel score of positive AA patients were also significantly higher than those with negative AA (9 (range: 6-10) vs. 5 (range 2-8) p<0.001, respectively) In separating acute appendicitis from negative exploration, the threshold of the Alvarado score is 63% sensitivity for ?7, 85.7% specificity; The Bedel score had 80.2% sensitivity and 92.9% specificity for the threshold value ?7. Conclusion: Bedel score is fast, simple, easy to learn and apply, as well as an effective and practical scoring system with only 7 parameters. Keywords: Acute appendicitis, Alvarado score, New score, Negative appendectomy