A sphenopalatine ganglion (SPG) block is a minimally invasive procedure used to treat chronic headaches and facial pain. The treatment involves delivering a local anesthetic to the sphenopalatine ganglion, a cluster of nerve cells located behind the nasal cavity that plays a central role in headache disorders.
The SPG is connected to the trigeminal nerve, a major nerve involved in migraines, cluster headaches, and trigeminal neuralgia. Blocking this nerve bundle can significantly reduce pain transmission.
The sphenopalatine ganglion contains:
Because the SPG communicates with the trigeminal nerve and brainstem, it is a key target in the treatment of headache disorders and certain types of facial pain.
An SPG block involves applying a local anesthetic to temporarily block pain signals transmitted through the sphenopalatine ganglion.
The procedure works by:
SPG blocks are effective for:
Patients who do not respond adequately to oral medications may benefit from SPG block therapy.
Patients suitable for SPG block often experience:
These symptoms are commonly associated with trigeminal and autonomic activation.
SPG blocks are performed in an outpatient setting and typically take only a few minutes.
Delivery methods include:
The intranasal catheter technique is commonly preferred because it is less invasive and does not require fluoroscopy.
An SPG block involves applying a local anesthetic to temporarily block pain signals transmitted through the sphenopalatine ganglion. The procedure works by interrupting trigeminal nerve–related pain pathways, reducing autonomic symptoms associated with headaches, and decreasing the frequency and intensity of headache episodes.
SPG blocks are performed in an outpatient setting and typically take only a few minutes.
Delivery methods include a cotton-tipped applicator placed through the nose to reach the SPG, a thin, flexible catheter inserted intranasally to deliver anesthetic, or an image-guided injection through the cheek (less common and more invasive). The intranasal catheter technique is commonly preferred because it is less invasive and does not require fluoroscopy.
Yes. An SPG block can be repeated if necessary.
Sphenopalatine Ganglion (SPG) Block is available at our Jersey City, NJ office at 100 Town Square Place, Suite 405. Serving patients from Hoboken, Bayonne, Weehawken, and surrounding Hudson County communities. Learn more about pain management in Jersey City.
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