Geneva, Sept. 25 -- International Clinical Trials Registry received information related to the study (ChiCTR2600132882) titled 'Efficacy and Safety of Bipolar Pulsed Radiofrequency of the Sphenopalatine Ganglion for Cluster Headache: A Prospective Randomized Controlled Study' on Sept. 19.

Study Type: Interventional study

Study Design: Parallel

Primary Sponsor: Shandong Provincial Hospital

Condition: Cluster headache is a primary trigeminal autonomic cephalalgia, characterized clinically by excruciating, stabbing or drilling pain strictly confined to the unilateral orbital or temporal region. The attack is invariably accompanied by ipsilateral autonomic symptoms such as conjunctival injection, lacrimation, nasal congestion, and rhino...