We previously showed that the rapid TSH (rTSH) screening is able to detect a high prevalence of thyroid diseases in patients presenting to the Emergency department (ED), with a 7% prevalence of undiagnosed thyroid dysfunctions. The purpose of the present study is to implement our diagnostic flow-chart for thyroid dysfunctions in the ED with a rapid point-of-care thyroid ultrasound (rPOCUS).

rPOCUS was performed by an app-based mobile ultrasound device (Lumify® by Philips Healthcare) in patients with suppressed rTSH undergoing urgent procedures requiring iodinate contrast media.

Our results suggest that rPOCUS is cost- and time-effective for the management of patients with a newly diagnosed hyperthyroidism requiring urgent iodinated contrast media or amiodarone administration. Moreover, this handled US scanner avoided rTSH measurement in patients found to have a normal thyroid gland, and detected some incidental findings (nodules, heterogeneous echotexture), which would lead to further diagnostic investigations.

We demonstrate, for the first time, that rPOCUS greatly improves the management of patients attending the ED, including the prompt characterization and correct treatment of hyperthyroidism, and the prevention of iodine-induced thyrotoxicosis.