Unclear origin vertigo protocol.

Background And Objective: Differential diagnosis of vertigo is a diagnostic challenge in the emergency setting. In our centre we have created a vertigo protocol to distinguish the different pathologies and their management in the emergency department. Our goal is to determine the efficacy of our hospital protocol in the diagnostic and therapeutic approach to acute vestibular syndrome.

Patients And Methods: It is a retrospective descriptive observational study on patients with a diagnosis of acute vestibular syndrome in the emergency department using our unclear origin vertigo protocol. All patients underwent an examination that included the HINTS protocol and had a minimum follow-up of 6 months. The results of the clinical assessments by the specialists were compared, as well as the physical examination with the different final diagnoses classified as peripheral, central and other-origin.

Results: We obtained 97 patients, with a mean age of 61.46 years. The final diagnoses were 26 patients for the peripheral group (26.8%), 38 for the other-origin group (39.2%) and 33 for the central group (34%). Stroke was found in 18 of the latter group, clinical-exploratory disagreement being the most frequent reason for activation of the protocol.

Conclusions: Our protocol has proven to be a useful tool to differentiate a possible acute vestibular syndrome of central origin from a peripheral one, avoiding unnecessary imaging tests. The most frequent cause of activation of the protocol was clinical-exploratory disagreement seen by the ENT doctor.