Diagnostico de la apendicitis y su variación en el tiempo.

Background: Technology changed progresively diagnosis of appendicitis, who is a challenge. The aims of our study were to a) Describe the variation of the diagnosis of appendicitis over time and b) Evaluate the rate of negative appendectomies with the use of different diagnostic tools. Methods: Retrospective database review. Description of the variation of the diagnosis of appendicitis in time of 1645 patients in whom an appendectomy was performed in a health institution in Bogota from January 2011 to December 2016. In adition, The rate of negative appendectomy was also evaluated with the use of different diagnostic tools. Results: The number of patients diagnosed by the clinical and ultrasound findings decreased in time, while the diagnosis by tomography increased. The rate of negative appendectomies with clinical evaluation was 14.5%, abdominal ultrasound 75% and tomography 5.3%. The number of appendectomies decreased from 362 to 215 in six years. Discussion : The availability of technology, its easy realization and deliberate use in the emergency room, have gradually transformed the diagnosis of appendicitis, decreasing the number of patients operated and the rate of negative appendectomies. Conclusions: The results of this study suggest that a) the use of tomography has increased in time, decreasing the diagnosis of clinical and ultrasound findings, and b) the number of negative appendectomies was lower with the use of ultrasound and tomography.