SGB vs. Ketamine Therapy for PTSD: How to Choose

If you've been researching innovative mental health treatments for PTSD, two names probably keep showing up: Stellate Ganglion Block (SGB) and Ketamine-Assisted Therapy (KAT). They're both rapid-acting. They're both backed by real evidence. They both do something traditional medications often can't.

And they are not the same treatment.

If you're trying to figure out which one is right for you, this blog is here to help you think it through. The short version is that the choice depends on your symptoms, your history, your tolerance for certain kinds of experiences, and what you're hoping the treatment will do for you. The longer version is below.

A quick reset on what each treatment does

SGB: a nervous system intervention

SGB is an in-office procedure that involves injecting a small amount of local anesthetic near the stellate ganglion, a cluster of sympathetic nerves at the base of the neck, using ultrasound guidance. The goal is to calm the part of the nervous system responsible for fight-or-flight.

For people whose PTSD shows up primarily as hypervigilance, panic, startle response, or a body that feels constantly "on," relief can sometimes happen surprisingly quickly, occasionally within hours. The effects may last weeks or months, and some people choose to repeat the procedure over time depending on how their symptoms return.

There's no psychedelic experience involved. You stay awake during the procedure and go home the same day. The effects are usually experienced more physically than cognitively. People often describe feeling calmer in their body before they can even fully explain it mentally.

If you want a fuller picture of what the procedure actually feels like minute to minute, we've written about that in "What Does SGB Feel Like During the Procedure?"

KAT: a medicine-and-therapy protocol

KAT is a series of sessions. A subanesthetic dose of ketamine is given, usually intramuscularly or intravenously, in a calm setting alongside trained providers. It produces a temporary dissociative state that's thought to loosen the rigid patterns of a depressed or traumatized mind, open a window of enhanced neuroplasticity, and create space for trauma to be processed in integration therapy afterward.

KAT works through a combination of medicine and psychotherapy across multiple visits. See "What Is Integration Therapy and Why Does It Matter After Ketamine?" for more on the integration piece, which is central to how KAT actually produces lasting change.

These are very different mechanisms. They are also addressing the same condition from different angles.

What SGB is especially good at

SGB tends to shine when the most disabling parts of someone's PTSD are physical and autonomic, the kind of symptoms that show up before language does. Things like:

• A constantly racing heart
• Hypervigilance and exaggerated startle response
• Sleep that's broken by adrenaline before nightmares are even involved
• A body that won't downshift from threat mode no matter what the mind tries to do
• Panic responses that feel like they're happening to you, not from you

A successful block doesn't process the trauma. It quiets the alarm system that's been firing on top of the trauma. For some people, that alone is enough to allow other treatments (therapy, sleep, basic functioning) to work again. SGB has been particularly studied in military and veteran populations, where the sympathetic over-activation pattern is common.

It is, in a sense, a treatment that meets the body where the body is stuck.

What KAT is especially good at

KAT tends to shine when the most disabling parts of someone's PTSD or related condition are emotional, cognitive, and pattern-driven. The parts that live in how you talk to yourself, how you relate to others, how a memory makes meaning. Things like:

• Treatment-resistant depression alongside the PTSD
• Chronic numbness, disconnection, or stuck-ness
• A specific trauma that won't move in talk therapy
• Self-loathing or shame patterns that haven't shifted with anything
• Suicidal ideation that needs rapid intervention

Because KAT pairs the medicine with structured integration therapy, it is well-suited to people who want to actively work on the underlying material, not just turn down the volume on the symptoms. The medicine creates the opening. Integration is where the trauma can be re-stored differently in memory.

It is, in a sense, a treatment that meets the mind where the mind is stuck.

Things to honestly consider

A few questions can help clarify which direction is right for you, or whether the answer might be both:

How do you feel about a temporary altered state of consciousness? KAT involves dissociation. For some people that's curiosity-inducing. For others it's something they'd rather not do, even with full safety. SGB doesn't involve any altered state at all.

How much time and energy do you have for ongoing treatment? KAT requires a multi-session induction and ongoing integration. SGB can be a single appointment with effects that last weeks to months, with the option to repeat as needed.

Are you primarily trying to lower the volume on a screaming nervous system, or to actually process and reprocess what's underneath? SGB tends to do the first. KAT, paired with integration, tends to do both.

What have you tried that hasn't worked? If years of talk therapy haven't moved a specific trauma, that points one direction. If your body hasn't been able to settle enough to do any therapy at all, that often points another.

Are you more comfortable with an ultrasound-guided injection in the neck, or with the IM or IV administration of ketamine? Both procedures are minor in the grand scheme. Personal comfort still matters.

Why it might not be either/or

A growing number of people are using both treatments, sometimes in sequence. Some start with SGB to calm the nervous system enough that deeper therapeutic work feels more accessible afterward. Others begin with KAT and later use SGB as additional support during periods where symptoms feel especially stuck or physically overwhelming.

The two treatments are not competing with each other. They work on different systems and can complement each other in meaningful ways for the right person. A thoughtful provider, along with a thoughtful third-party benefits administrator like Enthea, can help you think about your treatment plan as a whole, instead of treating these options like isolated products to choose between.

So how do you decide?

There is no universally "better" choice between SGB and KAT for PTSD. There is simply the better fit for you, based on your symptoms, your history, your goals, and the kind of support you feel ready for right now.

SGB is a body-focused intervention that can help quiet a hyperaroused nervous system relatively quickly. KAT is a series of therapeutic sessions that can help shift some of the deeper emotional and psychological patterns underneath trauma. Both are backed by growing evidence. Both can be powerful in the right context and with the right clinical support.

If you're trying to decide where to start, the most useful thing usually isn't another blog post. It's a real conversation with a provider who can understand your specific situation.

Looking at SGB or KAT through your benefits?

Enthea works with employers to make both SGB and Ketamine-Assisted Therapy part of mental health benefits coverage, so cost isn't the barrier to figuring out which is the right fit for you. Reach out at enthea.com to find out whether your employer offers Enthea-covered care, or how to advocate for it if they don't yet.

‍