Paraspinous Cervical Nerve Block for Primary Headache

Mellick and Mellick⁶ have postulated that pain may be modified due to the PCNB effect on the convergence of the trigeminal nerve with sensory fibers from the upper cervical roots. Since cervical innervation provides feeling to the head and upper neck, blocking this input can ameliorate pain.⁶

Summary

This series of seven patients provides further evidence of the effectiveness of PCNB in relieving headache symptoms for patients with recurrent, primary headaches when a secondary, more serious cause has been clinically excluded. Each of the seven patients had marked improvement of their pain and required only minimal nursing attention; moreover, all stated they would willingly undergo the procedure for future painful episodes.

Although there were no reported complications, this series is too small to demonstrate complete safety of the procedure. While this report is limited by a small sample size, it demonstrates that this is a quick, effective, and easily learned method of addressing a common ED complaint that obviates the need for parenteral medications and offers a potentially decreased patient length of stay.

Paraspinous cervical nerve block is a promising modality of treatment of ED patients who present with headache and migraine symptoms who do not respond to their outpatient “rescue” therapy. This procedure should be considered as an early treatment for migraine and other primary headaches unless contraindicated.