Nerve Block

Migraine is a type of chronic headache encountered by many people nowadays. Migraine can be accompanied by severe headaches and other symptoms, significantly affecting quality of life. Although the causes and treatment of migraine are not fully understood, in recent years, a new treatment approach such as GON block has emerged.

What is GON Block?

GON block is an injection performed on the Greater Occipital Nerve. This injection can help reduce the severity and duration of migraine attacks by focusing on the interaction between the trigeminovascular system, the trigeminal nerve, and vascular structures.

How Does GON Block Work?

GON block attempts to reduce the effect of the trigeminovascular system by blocking the occipital nerve. This nerve passes through the back of the head and plays an important role in transmitting headache symptoms. GON block helps reduce migraine pain signals by blocking nerve transmission.

How is GON Block Administered?

GON block is performed by injecting a local anesthetic substance around the GON. This injection temporarily stops the spread of the anesthetic substance to the tissues surrounding the nerve. Thus, the effect of trigeminal nerve pain signals and vascular reactions is reduced. This procedure usually takes a few minutes, and patients can typically return to their daily activities immediately afterward.

How Often is GON Block Done?

GON block is a method used in headache treatment. The frequency and duration of application may vary depending on the patient's needs and the severity of their attacks. It is usually applied once a week for 3-4 weeks. After this period, single-session applications may be performed every 1-3 months according to the patient's attack status and needs. The treatment plan is determined based on the patient's condition and the doctor's evaluation.

When is GON Block Used?

GON block can be used in the treatment of migraine-type headaches, tension-type headaches, and some other types of headaches. This block is used to alleviate the symptoms caused by headaches and to control pain.

What are the Side Effects of GON Block?

GON block is generally a safe and quite effective treatment method. Rare side effects may include hypersensitivity, cardiac rhythm disturbances, allergic reactions depending on the local anesthetic agent used. Side effects such as injection site infections, subcutaneous bleeding, fainting sensation, nausea, which may occur when an injection is made anywhere in the body, can also occur. It is recommended to be performed by an experienced specialist to minimize the possible risks of side effects.

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