Ultrasound-Guided Supraorbital Nerve Block as a Diagnostic Tool in the Outpatient Physiatry Setting: A Case Report and Review of the Literature.

Abstract

Here, we describe a case in which an ultrasound-guided supraorbital nerve block was used for the purposes of confirming the diagnosis of trigeminal neuralgia associated with herpes zoster and determining which trigeminal nerve branch is the pain generator in a patient with clinically suggestive findings. We discuss how performing a nerve block at the site of where the affected nerve exits the skull may identify which nerve is mediating the patient's symptoms and therefore guide possible further treatment options, which could potentially provide a more lasting duration of relief.