A medical society called the International Society for
Traumatic Stress Studies (ISTSS) publishes a set of guidelines for treating those people suffering from post traumatic stress disorder (PTSD), such as soldiers
returning from war zones or victims of natural disasters.
Treatments for PTSD generally involve both psychotherapy and
psychiatric medications. No psychiatric
medication controls two of the primary symptoms of post traumatic stress
disorder: re-experiencing the trauma as
flashbacks, and becoming episodically numb or zoned out. We do, however, have a medicine that effectively controls the nightmares,
believe it or not – an old blood pressure medication called prazocin. I will talk more about medication a little
later in the post, but first let me discuss the psychotherapy of PTSD.
Many types of psychotherapy have been employed for PTSD,
with widely varying results.
In my clinical experience, many chronic PTSD patients have been given group therapy, in which they meet with
other PTSD sufferers who have had similar experiences. I have found that this sort of treatment has
been next to worthless for a significant percentage of such patients,
particularly those patients who have been severely disabled by their disorder and who have been unable to work for years or even decades.
In patients with chronic PTSD (who
do not also have severe personality disorders or majorly dysfunctional families),
it is generally believed that the most effective type of psychotherapy is
something called prolonged exposure
therapy (PE), which is an intense form of what cognitive behavioral therapists (CBT)
refer to as systematic desensitization.
It is a difficult process in which - and I am
grossly simplifying it in order to be brief (and since I do not do this sort of work myself) - the traumatic experiences suffered by the
patient are relived under controlled conditions so that the anxiety and other
symptoms generated by the memories can gradually be extinguished. I have read that doctors have even experimented
with recreating the traumatic events using virtual reality through computers, projected
images, and earphones, to enhance the desensitization process.
In a PTSD treatment facility I know of, I was told that if a
patient were taking a benzodiazepine tranquilizer like Klonopin or Xanax, then
they would not be a candidate for
PE and would therefore be referred to the aforementioned group therapy. I was told this was the case because, CBT folks believed, that tranquilizers
somehow affect the learning process so that the PE therapy was not
effective if the patient were on the meds. I had heard this idea before
from other CBT therapists.
However, since people who take benzodiazepines are almost never intoxicated, I had always thought this idea a bit strange. So I asked the head
of the clinic for a reference. He did
not know of one. Interesting, I
thought. So I did my own literature
search.
Well guess what? I
found exactly one study that showed that benzodiazepines might affect learning in rats. But in people? All of the studies showed they had absolutely
no effect whatsoever.
Yet another urban CBT psychotherapy myth.
But then things got even stranger. I was also told that I should check out the
treatment guidelines from ISSTS, which said that benzo’s were not indicated for
the treatment of PTSD, and that this
clinic followed ISSTS guidelines. On
advice from the clinic leader, I looked up said
treatment guidelines, which turned out to be pretty amazing.
Here’s what they said:
“Although [benzos]
are effective anxiolytics [anti-anxiety] and anti-panic agents, they are contraindicated [italics mine] for PTSD
treatment. They don’t reduce
re-experiencing or avoiding/numbing behavior.
They should not be prescribed in patients with past or present
alcohol/drug abuse or dependence.
Finally, they may produce psychomotor slowing or exacerbate depression.
[Benzo’s] do not have any advantage over other classes of medications; therefore
they cannot be recommended as monotherapy
[again, my italics] in PTSD at this time.”
Being the cynical critic that I am, I should not have been shocked how a supposedly scientific document could be
filled with so many half truths. (I’ll
enumerate them shortly). But I was. And then I remembered that the pharmaceutical
companies had been demonizing benzo’s ever since they all went generic and
therefore became far less profitable for the companies (See my earlier
post).
The
Cognitive Behavioral Mafia folks also has a vested
interest in demonizing benzodiazepines, it seems to me, since the drugs are so
effective for some symptoms. This leads
to a situation in which patients would
rather just take drugs than go to a CBT therapist to go through systematic desensitization, which can be a
long, involved process that is sometimes itself quite traumatic in the short
run.
This preference is unfortunately common even though it is
probably better to treat chronic anxiety with psychotherapy than with
medication alone, because when the therapy is successful, the patient might be more or less cured. Not so with the medication. If you stop them, the symptoms often
return. (And no, not because the
medications cause the symptoms, but because they stop but do not cure the
symptoms).
Of course, it is also a perfectly good idea to treat anxiety
issues with medicine for the quick relief and
therapy for the eventual cure. You might then be able to stop the drugs after therapy is completed.
Remember, there is no evidence that medications interfere with
systematic desensitization. Still, the
CBT folks (and many psychiatrists as well) seem to think of drugs versus therapy as some sort of competition or
zero sum game, so their prejudices just happen to coincide with the interests
of drug companies: demonizing benzodiazepines.
It is well documented by several news organizations that
drug companies have insinuated themselves into scientific committees that draw
up treatment guidelines to make sure
that their interest in making higher profits from their brand-named medication
is advanced. I do not have any proof, of
course, but might this have been what happened with the ISSTS treatment
guidelines for PTSD?
So let us return to the subject of the half truths in the
ISSTS guidelines. Most of the misleading
ideas in the paragraph reproduced above have to do with the misconception implied
in the guidelines that PTSD generally exists in some sort of psychiatric vacuum
in which PTSD patients show no other
symptoms of any other psychiatric
disorders as well (Comorbid conditions). In fact, comorbidity is the rule rather than the exception.
For patients suffering from PTSD, I find clinically that the most important common
co-morbid condition is panic disorder. In this disorder, sufferers experience severe
anxiety attacks with physical symptoms that mimic those of a heart attack. People who have been traumatized are
especially vulnerable to developing panic attacks.
I found it difficult to find information about exactly what
percentage of chronic PTSD sufferers also have panic attacks, but in one study
it was 35% and in those patients who sought
treatment, 49%! (Cougle et. al., Anxiety Disorders 24(2), p. 183, 2010.) In another study (Falsetti & Resnick, Journal of Traumatic Stress 10, p. 683, 1997) the percentage was
69%. More than two thirds!
Yet another study (MacFarlane and Papay, Journal of Nervous and Mental Disorders 180 (8)
p.498, 1992) showed that comorbid panic disorder is an important predictor of
PTSD turning in to a chronic disorder.
People who have panic disorder also often develop agoraphobia - the fear of being out in
crowded places. Agorophobia is
particularly likely to develop in combat veterans who have comorbid PTSD and
panic disorder because of another symptom of PTSD: hyper-vigilence. It is as if these veterans have to remain constantly
on guard for enemy soldiers, rocket propelled grenades, and improvised
explosive devices – even though they are now back home in a safe
environment. Being hyperalert in a crowd
will often bring on panic attacks.
This is probably one reason why patients with chronic PTSD
and panic disorder may do not do well in group therapy. They are deathly afraid of groups.
Supposedly the first line treatment for panic disorder is an
SSRI antidepressants like Paxil or Zoloft, but in my clinical experience
benzodiazepines tend to be far more effective. The SSRI’s often only decrease the frequency and severity of panic
attacks, but do not stop them completely as certain benzo’s often do. In fact, many victims of PTSD are already on SSRI’s when I first see them,
and their panic symptoms and agoraphobia are not under any semblance of
control whatsoever.
So I add a benzo. The
combination of an SSRI and a benzo is
probably the most effective pharmacologic treatment of panic attacks of all,
but you will never find a study that shows that. In fact, you will never find a study using them in combination for the treatment
of any disorder. The drug companies
won’t fund such studies, because they don’t want doctors to think that benzo’s are
good drugs.
Interestingly, the clinic I have been discussing allows
patients who are on SSRI’s to get PE, whereas not so for those on benzo’s or the
combination.
Back to the ISSTS guidelines. They correctly point out that benzo’s do not
help the PTSD symptoms of flashbacks and numbing - but no one has said that
they do. I agree that they should not be
used as monotherapy for PTSD, as the
guidelines say, for that very reason. But why would they be contraindicated
(which means they should never ever be used under any condition)? The guidelines themselves start out by
admitting that they are very effective for panic disorder, which as I have
shown is highly comorbid with PTSD.
Well, maybe it’s because, “They should not be prescribed in patients with past or present
alcohol/drug abuse or dependence. Finally, they may produce psychomotor slowing or exacerbate
depression.”
Well first of all, the first statement is not at all true
for all patients, particularly those patients who have been sober for a
significant period of time. Two different studies have shown that ex-alcoholics
do not abuse benzo’s at a higher rate than anyone else. Also, some alcoholics are drinking only
because they are, in fact, medicating themselves with alcohol for their panic
attacks. They often STOP drinking when
put on a benzo.
And even if a chronic PTSD sufferer becomes dependent on
benzo’s, so what? Is that somehow worse
that being nearly housebound and completely disabled from work because of panic
disorder with agoraphobia? I think
not. And the drugs have almost no side effects. The worst thing about being addicted to a
benzo is that you are addicted to a benzo.
Ironically, a lot of the PTSD patients I see are never taken off
SSRI’s. Essentially, they are dependent
on them. But somehow that’s different. How? Beats me.
What about benzo’s causing depression? They sometimes do. Rarely. The studies that led to FDA approval of the various benzo’s show that this happens in
the range of 2-6% of cases. Not much
different than placebo! Sometimes one
benzo will have this side effect on a given patient, while another will not. And if they all do in a given patient, they can be
discontinued. Or an SSRI can be added for the very effective combination therapy, which prevents this side effect as well as the panic attacks.
The treatment guidelines do not say that SSRI’s are
contraindicated because some people might develop side effects, so why should benzo’s be? This is particularly nonsensical in light of
the fact that one common side effect of SSRI medication is increased agitation. PTSD
is an anxiety disorder!! (This side effect can also be treated with – you
guessed it – a benzo).