biostudies-literatureCady RTian Medical Inc101-16https://www.ebi.ac.uk/biostudies/studies/S-EPMC4320756biostudies-literatureUnknown55(1)<h4>Objective</h4>To determine if repetitive sphenopalatine ganglion (SPG) blocks with 0.5% bupivacaine delivered through the Tx360(®) are superior in reducing pain associated with chronic migraine (CM) compared with saline.<h4>Background</h4>The SPG is a small concentrated structure of neuronal tissue that resides within the pterygopalatine fossa (PPF) in close proximity to the sphenopalatine foramen and is innervated by the maxillary division of the trigeminal nerve. From an anatomical and physiological perspective, SPG blockade may be an effective acute and preventative treatment for CM.<h4>Method</h4>This was a double-blind, parallel-arm, placebo-controlled, randomized pilot study using a novel intervention for acute treatment in CM. Up to 41 subjects could be enrolled at 2 headache spHeadacheA double-blind, placebo-controlled study of repetitive transnasal sphenopalatine ganglion blockade with tx360(®) as acute treatment for chronic migraine.PMC432075612-004TIManley HRDexter KSaper JCady RfalseA double-blind, placebo-controlled study of repetitive transnasal sphenopalatine ganglion blockade with tx360(®) as acute treatment for chronic migraine.<h4>Objective</h4>To determine if repetitive sphenopalatine ganglion (SPG) blocks with 0.5% bupivacaine delivered through the Tx360(®) are superior in reducing pain associated with chronic migraine (CM) compared with saline.<h4>Background</h4>The SPG is a small concentrated structure of neuronal tissue that resides within the pterygopalatine fossa (PPF) in close proximity to the sphenopalatine foramen and is innervated by the maxillary division of the trigeminal nerve. From an anatomical and physiological perspective, SPG blockade may be an effective acute and preventative treatment for CM.<h4>Method</h4>This was a double-blind, parallel-arm, placebo-controlled, randomized pilot study using a novel intervention for acute treatment in CM. Up to 41 subjects could be enrolled at 2 headache sp2015-01-01T00:00:00Z2015 Jan2025-06-01T00:05:28.661Z2025-06-01T00:05:28.661ZS-EPMC43207562533892710.1111/head.12458