SN Therapy is a term for a medical procedure known as a Stellate Ganglion Block (SGB). It involves an injection targeting a collection of nerves in the neck to relieve symptoms of trauma, anxiety, and certain pain conditions. The goal is to interrupt signals that contribute to a heightened stress response. This procedure is often used when other treatments have not provided sufficient relief.
The Stellate Ganglion Block Procedure
The stellate ganglion is a bundle of sympathetic nerves located on either side of the voice box in the neck. These nerves are part of the sympathetic nervous system, which controls the body’s “fight-or-flight” response. An overactive sympathetic nervous system can lead to a state of persistent hyperarousal. The procedure calms this system by injecting a local anesthetic into the tissue surrounding these nerves.
Physicians use imaging guidance, such as ultrasound or fluoroscopy, to precisely place a needle near the ganglion, which is found in approximately 80% of people. The injection of the anesthetic “reboots” this part of the nervous system by temporarily blocking nerve impulses. This interruption can reduce levels of nerve growth factor and norepinephrine, helping to reset the system from a state of high alert.
Conditions Treated and Patient Experiences
Stellate Ganglion Block is most recognized for its application in treating Post-Traumatic Stress Disorder (PTSD) and generalized anxiety. Patients often report rapid and significant relief from symptoms like hypervigilance, intrusive thoughts, and severe anxiety, sometimes within minutes of the procedure.
Many individuals report a profound sense of calm and relaxation following the injection. Patient testimonials mention improvements in sleep quality and a reduction in panic attacks. In the context of PTSD, the block can make it easier for patients to engage in trauma-focused psychotherapy by lowering the physiological distress associated with recalling traumatic memories.
Potential Risks and Considerations
The procedure carries potential side effects, most of which are temporary and related to the local anesthetic spreading to nearby nerves. Common, short-term effects include a hoarse voice, drooping eyelid, nasal congestion, and a feeling of a lump in the throat. Bruising or soreness at the injection site is also possible. These symptoms typically resolve within a few hours as the anesthetic wears off.
More serious complications are rare but can include nerve damage, infection, bleeding, or a collapsed lung (pneumothorax). The procedure is not considered a permanent cure and is often integrated into a comprehensive treatment plan. The effects can differ for each person, and a series of injections may be necessary for sustained relief.