Role of Supratrochlear and Supraorbital Nerve Block in Chronic Atypical Facial Pain Management: A Case Series

Abstract

Chronic Atypical Facial Pain (CAFP) presents a daunting clinical challenge, characterised by persistent, unexplained facial pain that is resistant to conventional treatments. It poses a significant challenge to both patients and healthcare providers due to its poorly understood aetiologies and resistance to traditional analgesic therapies. As a result, novel approaches are sought to alleviate the suffering of affected individuals. Supratrochlear and supraorbital nerve blocks have emerged as promising interventions for CAFP. These nerve blocks target the supratrochlear and supraorbital nerves, which are branches of the ophthalmic division of the trigeminal nerve. These nerves are frequently implicated in the generation and propagation of facial pain. By interrupting the transmission of pain signals along these nerves, supratrochlear and supraorbital nerve blocks offer a targeted and minimally invasive approach to managing CAFP. Furthermore, their relatively low risk profile makes them an attractive option for individuals who have not responded well to other treatments or who wish to avoid more invasive interventions. The present case series (three males and one female) discusses the anatomical considerations, technique, and potential complications associated with supratrochlear and supraorbital nerve blocks. It also reviews the current body of evidence supporting their use in CAFP management, including outcomes such as pain reduction and improved quality of life. Supratrochlear and supraorbital nerve blocks represent a valuable addition to the armamentarium of therapies available for the management of CAFP.