A greater occipital nerve block is used to treat occipital neuralgia and other types of headaches and even facial pain. A successful GON block improves pain after 20-30 minutes and can last for several hours to months.
Here are 3 tips to successfully perform a greater occipital nerve block
- A 5 cm 25G needle connected to a 5 mL syringe with an extension line is inserted in a lateral-to-medial direction.
- 3-5 mL of local anesthetic is injected slowly around the greater occipital nerve after negative aspiration.
- Use ultrasound guidance to identify nearby vessels and avoid inadvertent intravascular injection.

Sonoanatomy

Reverse Ultrasound Anatomy
Comparison of sonoanatomy and reverse ultrasound anatomy for a greater occipital nerve block.
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