• Headache · May 2020

    Sphenopalatine Ganglion Pulsed Radiofrequency for the Treatment of Refractory Chronic SUNCT and SUNA: A Prospective Case Series.

    • Raffaele Ornello, Stefano Palmisani, Madeleine Murphy, Simona Sacco, Adnan Al-Kaisy, and Giorgio Lambru.
    • Neuroscience Section, Department of Applied Clinical Sciences and Biotechnology, University of L'Aquila, L'Aquila, Italy.
    • Headache. 2020 May 1; 60 (5): 938-945.

    ObjectivesWe aimed to evaluate the safety and effectiveness of sphenopalatine ganglion pulsed radiofrequency (SPG-PRF) for the treatment of patients with refractory chronic short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing (SUNCT) and with cranial autonomic symptoms (SUNA).BackgroundSPG-PRF is a minimally invasive, non-neurodestructive procedure already tested in refractory chronic cluster headache with mixed outcomes. However, no data have been produced in SUNCT/SUNA.MethodsThis was a prospective clinical audit of outcomes. Consecutive patients with chronic SUNCT/SUNA refractory to medical treatments and treated with SPG-PRF, were included in the analysis. The SPG-PRF was performed percutaneously via a lateral, infra-zygomatic approach. Responders were defined as patients with a reduction in number and/or severity of headache episodes by ≥30% for ≥3 months. Responders to the first procedure were offered to have the treatment repeated.ResultsNine patients (6 female) were analyzed. After a median follow-up of 30 months (range 2-30), 7 patients were considered responders to the treatment (77.8%) for a median of 6 months (range: 4-10), 1 patient obtained 40% improvement for 2 months, and 1 patient did experience any improvement. No procedure-related immediate or delayed side effects were reported. Three patients (33.3%) experienced a worsening of the head pain for 2-4 weeks immediately after the procedure. Four responders had SPG-PRF repeated; a reproducible response was obtained in two of them.ConclusionsIn our small series of patients with refractory chronic SUNCT/SUNA, SPG-PRF was a safe and effective treatment modality. The potential reproducible positive effect of subsequent treatments may prevent or delay the use of more invasive and costly interventions for at least a proportion of these patients.© 2020 American Headache Society.

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