What is SPG medical?

The sphenopalatine ganglion (SPG) is a bundle of nerves that is linked to other nerves within the head and typically involved in headaches and facial pain. The SPG is located just under the tissue that lines the back of the nose.

What is SPG injection?

A Sphenopalatine ganglion block, or SPG block, is a procedure that can help reduce or eliminate pain in the head and face through the use of a numbing injection to nerves in the face.

What is an SPG neurology?

The sphenopalatine ganglion (SPG) is a group of nerves that relate to the trigeminal nerve. It’s this nerve that is responsible for carrying pain signals to the brain. The SPG also assists with certain bodily functions, including nasal congestion and eye tearing.

What is SPG stimulation?

What is Sphenopalatine Ganglion Stimulation? The sphenopalatine ganglion (SPG) is a nerve bundle behind the bony structure of the nose that has been long recognized to be associated with pain pathways of certain headache disorders, such as cluster headache.

What is a SPG nerve block?

Sphenopalatine ganglion (SPG) blocks are a proposed treatment option for chronic migraines and some severe non-migraine headaches. The SPG is a group of nerve cells located behind the bony structures of the nose. The nerve bundle is linked to the trigeminal nerve, the primary nerve involved in headache disorders.

How long does SPG nerve block last?

How to Perform an SPG Nerve Block. Anesthetic of your choice: Lidocaine 1%, 2%, or 4% (onset 15 minutes, duration of action 30 minutes to 2 hours) Bupivacaine 0.25% or 0.5% (onset 10–20 minutes, duration of action 2–4 hours)

How is a sphenopalatine block done?

SPG blocks have been achieved with various techniques, including the use of lidocaine-soaked cotton tip applicator through the nose, transorally, transnasal endoscopic, infratemporal approach, and more recently using various noninvasive transnasal devices to inject anesthetics into the SPG [19].

Is a SPG block painful?

Some patients experience a minor discomfort when the small, soft SphenoCath® is inserted into the nose, but the procedure is not painful when performed correctly. In the past, SPG block was accomplished with a long needle through the side of the head or with a stiff, cotton-tipped applicator through the nose.

Does SPG block hurt?

How often can you get an SPG block?

An SPG block is a low-risk, minimally invasive procedure that can be effective when other treatments have failed. It can be repeated in 1-2-week intervals, if necessary. Please note that an SPG block cannot be performed if you have an allergy to local anesthetic or an active respiratory infection (nasal congestion).

How long does an SPG block last?

SPG block using the SphenoCath® takes 2-3 minutes. Patients are encouraged to remain in a flat or reclined position for 10-15 minutes afterwards to maximize the benefit of the procedure. What medications are used?

How is sphenopalatine ganglion block done?

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