The sphenopalatine ganglion nerve block (SPG) is a medical procedure that involves the injection of anesthetic or other medications close to the sphenopalatine ganglion, which is a collection of nerve cells located in the skull. This ganglion plays a key role in the transmission of pain signals related to certain types of head and facial pain, particularly conditions like cluster headaches, migraines, and other types of facial neuralgia. The SPG is situated near the nasal cavity, making it accessible for therapeutic procedures.

The goal of the sphenopalatine ganglion nerve block is to interrupt the transmission of pain signals from the ganglion to the brain. By injecting a local anesthetic or other medications, the block temporarily numbs the nerve. This prevents it from sending pain signals to the head and face. This procedure can offer significant relief for patients who experience severe, recurring pain from conditions like cluster headaches. These headaches are known for their sudden, intense nature, often on one side of the face or around the eye.

In addition to cluster headaches, the SPG nerve block has shown promise in treating other pain conditions such as migraines, trigeminal neuralgia, and some types of facial pain linked to the sinuses. The treatment is minimally invasive and can be performed quickly. It often provides immediate or near-instantaneous relief from pain, depending on the individual.

Procedure

The procedure is typically performed in a clinical setting, either by a pain management specialist, neurologist, or other trained healthcare professional. It may be done through a variety of methods, including a transnasal approach. Here, a small catheter is inserted into the nasal passage. Alternatively, it can be done using a local injection, depending on the patient’s condition and the doctor’s preference.

Side effects may include temporary numbness or a feeling of pressure in the nose or face. Although results can vary from patient to patient, many experience significant improvements in their symptoms following the procedure. Overall, the SPG nerve block is considered a promising option for patients suffering from chronic, severe facial pain and headaches.

Visit University Pain and Spine Center in NJ and NY to see if SPG nerve block is right for you.