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SCI Forum Report & Video

 

Using Hypnosis for Spinal Cord Injury Pain Management

Presented on September 11, 2007, by Shelley Wiechman, PhD, assistant professor in the Department of Rehabilitation Medicine at the University of Washington. Dr. Wiechman discusses what hypnosis is, how it is used to treat pain, and what the research on hypnosis for treating pain shows so far. She reviews virtual reality and its use in improving hypnosis treatment and shows a video clip of a burn patient using virtual reality for pain management. Finally, Dr. Wiechman provides a demonstration of hypnosis induction and talks about how to find a therapist trained in hypnosis for chronic pain managment. Read the report or watch the video from this page.

 

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Report

 

Using Hypnosis for Spinal Cord Injury Pain Management

By Shelley Wiechman, PhD

Clinical psychologist at Harborview Medical Center and assistant professor, Rehabilitation Medicine, University of Washington

 

Table of contents

What is hypnosis?

There are many myths and misconceptions about hypnosis. For some of you, your only experience or introduction to hypnosis may have been at the state fair, which is very different from hypnosis as it is used in a therapeutic setting. We don’t swing a watch back and forth in front of you. You won’t be asked to stand up and cluck like a chicken or do anything you don't want to do. That's not how hypnosis works when we're talking about hypnosis for pain control.

Steps of hypnosis

Can anyone be hypnotized?

Hypnotizability—or how easily someone can be hypnotized—varies a great deal from person to person and can actually be measured by a clinical psychologist. While under hypnosis, a person is given 12 tasks to complete. The tasks are very non-threatening, such as smelling something that may not be there. The psychologist scores the person based on his or her ability to complete those 12 tasks while under hypnosis. The person who completes all the tasks scores a 12, which is considered highly hypnotizable. A score of zero indicates low hypnotizability. A majority of the population falls between two and six—the moderate range of hypnotizability. Studies have shown that people in the mild to moderate range can still benefit from hypnosis.(1)

Research on hypnosis for pain management

Hypnosis is no longer seen as a fringe or alternative type of therapy; rather, the scientific community is studying and taking it seriously. Images of the brain can now show us that changes in activation areas in the brain occur when a person is under hypnosis. A lot of exciting new research is going on in this area, both for acute and chronic pain.  

Lang and others compared a group of patients receiving an out-patient surgical procedure using only standard sedation to a similar group using standard sedation plus hypnosis.(2)  They found that the costs associated with this medical procedure were cut in half for the group that received hypnosis along with the standard sedation. This kind of research demonstrating cost savings may eventually lead to expanded coverage by insurance companies.

Rarely does hypnosis completely take the place of standard sedation or medication. On the burn unit at Harborview Medical Center, we don’t usually replace standard narcotics with hypnosis, we supplement, and we’re finding that the need for the standard narcotics actually decreases if hypnosis is added.

Researchers at Harborview have studied the use of hypnosis during burn debridement, the excruciatingly painful removal of dead tissue that burn patients must endure once or twice a day to promote healing and avoid infection. Standard narcotics often aren't enough to make the pain manageable during debridement, but we can't put them under anesthesia once or twice a day either. Dr. David Patterson, UW clinical psychologist in the Department of Rehabilitation Medicine, saw hypnosis as a possible way to help people facing this excruciating pain on a daily basis and began studying its effectiveness in the 1990s. In one of his studies of patients with high pain (8 on a 10-point scale), those who received hypnosis dropped on average to a pain score of about four, whereas the control comparison group’s pain dropped only slightly, to about seven.(3)  Repeating this study later again found that those who received the hypnosis had a larger drop in pain than those who didn't.(4)

Patterson also reported on the successful use of hypnosis alone in place of opiates in a burn patient who could not use opiates because of an adverse reaction.(5) Luckily for this patient hypnosis worked very, very well, and he was able to go through his entire burn treatment with hypnosis only.

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What is the difference between acute and chronic pain?

Acute pain takes place before healing has occurred, whereas chronic pain sets in after the healing is already done: the injury has healed, but the pain remains, and it becomes chronic pain. Traditional biomedical treatments, like opiate medications, are generally effective for acute but not chronic pain.  Chronic pain is extremely complex and difficult to treat. 

A number of factors complicate chronic pain conditions and their treatment: 

Using hypnosis for treating chronic pain

Research on the use of hypnosis for chronic pain is fairly new. Some of the early studies actually found hypnosis to be ineffective, but we’ve since learned that these studies used the wrong types of post-hypnotic suggestions. We now know that in chronic pain situations the post-hypnotic suggestions need to focus on the five factors (from the list above) that are maintaining or aggravating the chronic pain syndrome. So, instead of suggesting to chronic pain patients that their pain will go away, which doesn’t work, the therapist might suggest that they're going to feel more energy and more motivated to participate in physical therapy or an exercise program. These suggestions are more successful in helping somebody who is coping with chronic pain. 

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Chronic pain and SCI

Many different kinds of chronic pain are associated with SCI.

The vast majority of persons with spinal cord injury do report chronic, unpleasant sensations or pain. And about a third describe the chronic pain as severe, which is a very, very hard thing to live with. 

Chronic pain in persons with spinal cord injury tends to exist at multiple body sites and generally does not improve with time. It can interfere significantly with normal activities such as work and social life, and perhaps for that reason is associated with depression.
 
Few medications are consistently helpful.  Narcotics might provide some relief, but have potentially dangerous side effects.  Many people can't function day to day on doses of narcotics required to manage the pain. We need more non-pharmacological interventions like hypnosis, relaxation, imagery, meditation and autogenic training for these pain syndromes. Medications aren't going to be the answer. 

A study here at the University of Washington found that hypnosis was effective in reducing chronic pain levels in SCI. (6) The 34 participants, who reported an average pain level of six (on a 10-point scale) at the beginning of the study, received 10 sessions of hypnosis with a therapist, as well as self-hypnosis training so they could continue the treatment at home. At the end of the 10 session, average pain levels dropped to five—not a huge drop but nonetheless important for people with chronic pain. Furthermore, this reduced level of pain was maintained three and six months later.

Sleep also improved as a result of the hypnosis. Pain often interferes with sleep, and before the intervention participants reported their sleep disturbance at about six; after the session, this interference dropped to a four, improving sleep significantly. Again, this improvement continued when participants were assessed three and six months after completing the 10 sessions.

Overall, this study found that hypnotic analgesia seems to be effective for roughly 23% of persons with SCI, is modestly effective for another 30%, and generally ineffective for 38%.  It’s not helping third of the people, and we need to figure out why. This study also found that those who scored high on the hypnotizability scale had a better response. But even those who had  mild to moderate hypnotizability scores showed improvement. These findings are very promising.

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Virtual reality hypnosis

Virtual reality technology, which enables a person to interact with a computer-simulated environment, has been used in a variety of training settings, such as medicine and the military, as well as in the gaming industry in places like Game Works. It typically involves donning a special helmet that enfolds the wearer in a virtual world of sight and sound and can be manipulated with manual controls, such as a joystick.

In the UW Department of Rehabilitation Medicine, we have been working with the UW Human Interface Technology (HIT) Lab to use virtual reality to help induce hypnosis. One of the pioneers in virtual reality, the HIT lab was approached years ago by the military to help develop flight simulators for military pilots. We have a simulated emergency room where trainees can practice treating patients in an emergency situation, as well as simulated operations and surgical procedures. 

Patterson, along with Hunter Hoffman at the HIT Lab, came up with the idea of using virtual reality to help induce hypnosis in hospital patients with severe acute pain, specifically burn patients. These patients were taking opiate medications and as a result were often too sedated to be able to focus their attention and benefit from hypnosis. Patterson and Hoffman speculated that virtual reality might make hypnosis less effortful because it frees the patient from having to come up with the image of something relaxing or comforting to focus on; all they have to do is open their eyes and they are immersed in another world. Hoffman first published on the therapeutic use of virtual reality in Scientific American in 2004. (7)

With burn patients in mind, Hoffman created SnowWorld, which gives the illusion of gliding through a cool, snowy canyon. In one version, patients can interact with the environment by shooting snowballs at snowmen and penguins to make them disappear in a puff of powder. Unlike conventional video games, all peripheral vision is sealed off from outside distractions. In comparison studies, virtual reality was far more successful than Nintendo for reducing pain during burn care. (8)

SnowWorld can also be used for virtual reality hypnosis (VRH) for chronic SCI pain. Wearing a  special helmet, the patient is immersed in the SnowWorld program while undergoing the same steps of hypnotic induction as in regular hypnosis. As the patient floats (virtually) down the canyon, the therapist guides the patient verbally through progressively deeper stages of relaxation, ending in the deepest stage at a beautiful lake. At that point, the therapist gives post-hypnotic suggestions for comfort, relaxation, and pain management. At the end, the therapist guides the patient back up the canyon to alertness. The whole process takes about thirty minutes. 

In a single case study at Harborview, VRH was used for the first time with a patient with SCI who had recurrent severe neuropathic pain for many years. Her pain did not respond to any pain medications, and hypnosis alone was not beneficial. After several VRH sessions, her average pain rating went from a seven (out of 10) to a five—not a huge drop, but significant for someone experiencing ongoing pain. Although this involved only one patient, these findings are promising, and we will continue looking at how we can use the VRH for all types of chronic pain syndromes.(9)
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(Editor’s note: At this point in the presentation Dr. Askay conducted a hypnotic induction demonstration with the audience that lasted about 20 minutes.)

Finding a qualified therapist

It is important to work with someone who is qualified to use hypnosis in a therapeutic setting. I am not a hypnotist, and my colleagues are not hypnotists; we are clinical psychologists who use hypnosis as one technique for helping to manage pain. This is a crucial point. People who advertise themselves as hypnotists may or may not have any kind of behavioral or mental health training. But pain is such a complex issue that you really need to work with somebody who understands pain, who understands behavior management, depression, anxiety, and who use hypnosis as one of many techniques that can help manage pain. I think it’s important to find a psychologist, a social worker, a nurse, a counselor who has training in hypnosis and can use it in a broader context of a multi-disciplinary approach to pain management.

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References

  1. Patterson DR, Jensen MP. (2003).  Hypnosis and clinical pain.   Psychol Bull. 2003 Jul;129(4):495-52.
  2. Lang EV, Rosen MP.(2002).  Cost analysis of adjunct hypnosis with sedation during outpatient interventional radiologic procedures. Radiology. 2002 Feb;222(2):375-82.
  3. Patterson DR, Everett JJ, Burns GL, Marvin JA. (1992).  Hypnosis for the treatment of burn pain. J Consult Clin Psychol. Oct;60(5):713-7.
  4. Patterson, DR; Ptacek, JT (1997).  Baseline pain as a moderator of hypnotic analgesia for burn injury treatment.  J Consult Clin Psychol. Feb;65(1):60-7.
  5. Ohrbach R, Patterson DR, Carrougher G, Gibran N. Hypnosis after an adverse response to opioids in an ICU burn patient. Clin J Pain. 1998 Jun;14(2):167-75.
  6. Molton IR, Graham C, Stoelb BL, Jensen MP. (2007).  Current psychological approaches to the management of chronic pain.  Curr Opin Anaesthesiol. Oct;20(5):485-9.
  7. Hoffman, Hunter G., Virtual-Reality Therapy. Scientific American, Aug 2004, Vol. 291, Issue 2, p58-65.)
  8. Hoffman HG, Doctor JN, Patterson DR, Carrougher GJ, Furness TA 3rd. (2000). Virtual reality as an adjunctive pain control during burn wound care in adolescent patients. Pain. 2000 Mar;85(1-2):305-9.
  9. Oneal BJ, Patterson DR, Soltani M, Teeley A, Jensen MP. Virtual reality hypnosis in the treatment of chronic neuropathic pain: A case report. International Journal of Clinical and Experimental Hypnosis. in press.