Analysis of the suitability of imaging tests in the diagnosis of inguinal hernia

Abstract

Introduction: The diagnosis of inguinal hernia is based on anamnesis and physical examination, although there are an increasing number of diagnostic tests performed. Objective: To assess the possible over-indication of imaging tests performed to diagnose inguinal hernia and identify the services that order most improper tests. Methods: 202 patients that underwent elective inguinal hernia intervention were included in this retrospective study. The image tests requested were analyzed, as well as their suitability and the requesting services. Results: In 55.4 % of the operated patients, an imaging test was performed (50.5 % ultrasound). Only 27.9 % were correctly indicated. Primary Care and Emergency services requested a greater number of unjustified tests (8.9 % and 5 % respectively). The tests ordered to diagnose recurrent hernias were more justified than those for primary hernias Conclusions: There is an important over-indication of unnecessary tests to diagnose inguinal hernia, with the consequent increase of healthcare expenditure and workload for radiologists.