Prolonged exposure is one of the two gold-standard treatments for PTSD (post-traumatic stress disorder, the trauma-spectrum condition that follows certain…
Sections
Prolonged exposure is one of the two gold-standard treatments for PTSD (post-traumatic stress disorder, the trauma-spectrum condition that follows certain kinds of life events and gets stuck in a way regular processing doesn’t), the other being CPT (cognitive processing therapy, a structured protocol that works on the trauma-related beliefs more than on direct re-experiencing). PE works better than most things in psychiatry. It also gets skipped or never offered to a huge fraction of veterans, first responders, assault survivors, and accident survivors, because it’s hard, both for the patient and for the therapist, and a lot of therapists who say they treat trauma aren’t actually doing PE. They’re doing supportive talk therapy and calling it trauma work, which it isn’t.
The reason PE keeps coming up as the recommendation worth pushing is that the data is clean. Sixty-plus percent of patients who complete the full course of PE hit remission of PTSD symptoms. That’s a remarkable response rate by psychiatric standards, the kind of number you don’t see that often in this field. The catch is the completing-the-full-course part. PE is uncomfortable, and somewhere between a third and a half of patients who start it don’t finish, which means the average outcome looks worse than the per-protocol outcome looks. The ones who finish, mostly get better. The ones who quit, mostly stay where they were.
What it actually involves
PE is structured. Eight to fifteen weekly sessions of ninety minutes each, with homework between sessions. The core mechanisms are two kinds of exposure. Imaginal exposure means the patient narrates the traumatic memory in detail, in present tense, in session, repeatedly, with the therapist guiding the level of detail along the way. The session gets recorded and the patient listens to the recording between sessions. The point is to repeatedly engage with the memory until the body learns it’s a memory and not an active threat.
In vivo exposure is the patient going out into real life and confronting situations, places, or activities he’s been avoiding because of the trauma. Driving on the highway again after the car accident. Going to a crowded store after the assault. Sleeping with the lights off. The therapist and the patient build a hierarchy of avoided situations and work up it over the course of treatment, starting with the lower-rated ones and moving up as the early ones lose their charge.
That’s it. There’s no special trick, no magic protocol element. It’s repeated, structured engagement with the memory and with the avoided situations, while doing nothing to suppress the resulting anxiety, until the body’s threat response to those stimuli quiets down. The mechanism is plain, the work isn’t.
Why it gets skipped
Three reasons. One, most therapists aren’t trained in it. PE requires specific training and ongoing consultation to do well, and a lot of trauma-identified therapists picked up their trauma framing from continuing-ed weekends without ever actually doing a full PE course with supervision. They can talk the language of trauma without delivering the intervention that has the data. Two, the therapists who could do it are sometimes scared of it. The idea of having a patient re-tell a rape or a combat memory in detail is uncomfortable, and a lot of therapists deflect into more comfortable territory under the cover of meeting the patient where they are, which is one of those phrases that sounds good and ends up meaning never actually going where the patient needs to go. Three, patients don’t want to do it once they understand what it involves, and the clinicians often don’t push hard enough to get them through the resistance.
The third reason is the most fixable from the patient side. If you walk into PE knowing the treatment is uncomfortable, that the discomfort is the mechanism, and that the data on patients who actually complete the protocol is excellent, the threshold for staying through the rough sessions is higher. The patients who quit mostly quit in the first three or four sessions, when the imaginal work is at its rawest and the in vivo hierarchy is just getting started, which is exactly when the work is most worth not quitting. The discomfort isn’t a bug, the discomfort is what the treatment is.
The data on completion is excellent. The trick is that completing the protocol means sitting in the part of the work most patients want to bail on.
The pattern that comes up most
The version of this story that turns up over and over is a guy, often a veteran, sometimes a first responder, sometimes neither, diagnosed with PTSD years back and in some version of “trauma therapy” off and on for a decade. He’s been on a couple of different SSRIs (selective serotonin reuptake inhibitors, the most common antidepressant family), partial benefit, never close to remission. Avoids crowds, sleeps with a loaded gun on the nightstand, hasn’t been to a barbecue in five years, is startle-jumpy in ways the wife has learned to work around without commenting on. The therapy he’s been doing for the decade is mostly supportive talk therapy that’s been kind and steady and hasn’t moved him.
The conversation that usually opens it is being plain about the fact that supportive talk therapy is probably never going to get him over the line, and that the treatment with actual data behind it is PE. Most of these guys have heard “trauma therapy” before and don’t realize it has subcategories with very different evidence bases. Some of them have done EMDR (eye movement desensitization and reprocessing, the trauma-focused therapy that has the patient track bilateral stimulation while accessing the memory, which I personally find hokey but the research is solid enough that I refer for it anyway) without finishing. Some haven’t done any of the protocols. The honest conversation about what the data says, paired with naming that PE is hard and worth doing, is usually what opens the door.
The first three or four weeks of actual PE are brutal. The imaginal exposure has him re-living a memory in detail he hasn’t accessed in years. Most of these guys come back to session four saying they’re not sure they can keep going, and the answer is usually that session four is exactly where most people quit and the data on the people who push past session four is different from the data on the people who quit at session four. The guys who hold, mostly stick. By week eight the imaginal work is clearly losing its charge. The story is becoming a story instead of an active threat. The in vivo work over the same window has him driving the I-5 again, going to one of his kids’ soccer games, sleeping without the gun on the nightstand. Twelve weeks in, the PCL-5 (the standard PTSD symptom scale, ranges roughly 0 to 80) often drops from the 60s into the low 20s, below the diagnostic threshold. Years out, the guys who completed mostly stay well. Some keep the SSRI as a safety net, most don’t need to escalate it again.
How to vet a therapist before you start
Ask specifically if they’re trained in prolonged exposure. When they did the training, who supervised them, how many full PE protocols they’ve completed with patients. If the answer is “trauma-informed therapy” or “somatic work” or “I integrate a lot of modalities,” you may be getting a real evidence-based treatment, or you may be getting talking-about-trauma with a different label on it. EMDR has its own evidence base and is a separate conversation, it’s a real treatment with real data, just framed differently. CPT is another evidence-based option, structured around the trauma-related beliefs more than the memory itself, also worth asking about. PE has the cleanest data of the three, but the right answer for a given patient is sometimes one of the others, and the therapist who’s actually trained in the protocols can have an honest conversation about which one fits.
What’s nice to hear
The thing nobody tells these guys is that the actual treatment, when it gets done with a therapist who actually does the protocol, moves fast by psychiatric standards. Twelve weeks of work is not nothing, but it’s not the open-ended decade-long supportive-talk situation a lot of these guys have been in. Three months of hard work for a real shot at remission is a different deal than ten more years of mostly-the-same with a different therapist every two years. And the change, when it lands, shows up in the practical parts of life that have been quietly shrinking for years. Going to barbecues. Sleeping without the gun. Not flinching when somebody drops a pan in the kitchen. The wife saying she has him back. None of that is small.
The discomfort question, said plainly
One last thing worth saying about the discomfort part, because it’s the piece that drives most of the quitting. The discomfort isn’t a side effect of the treatment, the way nausea is a side effect of an SSRI. The discomfort is the treatment. The whole point of imaginal exposure is the body and brain learning, through repeated contact with the memory in a safe setting, that the memory isn’t the same as the threat that the memory points at. That learning only happens if you actually let the contact happen, which means letting the discomfort be present without distracting yourself out of it. Distracting out of it is what you’ve been doing for the last decade and it’s why you still have the symptoms. The treatment is, in some sense, the not-distracting. Which sounds simple and is genuinely hard, and is also what the protocol’s whole structure exists to make doable in a way you couldn’t do alone in your own head at 3 AM.
Bottom line
If you have PTSD that hasn’t responded to talk therapy and a medication, prolonged exposure is what the data says to try, and a lot of therapists who call themselves trauma therapists aren’t actually doing PE. Ask the specific questions, find a therapist who runs the actual protocol, and commit to finishing once you start. The discomfort is the work, and the work is what gets you out the other side. Future you, sleeping through the night without a gun on the nightstand and actually going to your kid’s soccer game without scanning the parking lot, is the version of yourself worth being uncomfortable for.
