Clinical Studies on the Effectiveness of Hypnosis Smoking Cessation, Weight Loss, Pain Control and IBS
When you consider the fact that half the pain-killing effect of our most powerful analgesic, morphine, is caused by positive expectation (placebo) you begin to see how the way we think about a thing or person or event profoundly affects the way our bodies react. The placebo effect and its opposite, the nocebo effect, beautifully illustrate the ability of the mind to affect the cells of the body. You can watch a BBC documentary about the fascinating effects of 'nocebo' here.. And below is a selection of the many studies on the clinical use of hypnosis.
N.B. Studies on the Effectiveness of Hypnosis for Smoking Cessation (2009, April 8). Retrieved with thanks from http://johnmongiovi.com
Significant differences were found on all measures. The experimental group had significantly less discomfort and illicit drug use, and a significantly greater amount of cessation. At six month follow up, 94% of the subjects in the experimental group who had achieved cessation remained narcotic free. A comparative study of hypnotherapy and psychotherapy in the treatment of methadone addicts. Manganiello AJ, American Journal of Clinical Hypnosis, 1984; 26(4): 273-9.
In a research study on self-hypnosis for relapse prevention training with chronic drug/alcohol users. Participants were 261 veterans admitted to Substance Abuse Residential Rehabilitation Treatment Programs (SARRTPs). individuals who used repeated self-hypnosis "at least 3 to 5 times a week," at 7-week follow-up, reported the highest levels of self-esteem and serenity, and the least anger/impulsivity, in comparison to the minimal-practice and control groups. American Journal of Clinical Hypnotherapy (a publication of the American Psychological Association)
Since 1992, we have used hypnosis routinely in more than 1400 patients undergoing surgery. We found that hypnosis used with patients as an adjunct to conscious sedation and local anesthesia was associated with improved intraoperative patient comfort, and with reduced anxiety, pain, intraoperative requirements for anxiolytic and analgesic drugs, optimal surgical conditions and a faster recovery of the patient. We reported our clinical experience and our fundamental research. [Hypnosis and its application in surgery] Faymonville ME, Defechereux T, Joris J, Adant JP, Hamoir E, Meurisse M, Service d'Anesthesie-Reanimation, Universite de Liege, Rev Med Liege. 1998 Jul;53(7):414-8.
Healed significantly faster from surgery
Two studies from Harvard Medical School show hypnosis significantly reduces the time it takes to heal.
Study One: Six weeks after an ankle fracture, those in the hypnosis group showed the equivalent of eight and a half weeks of healing.
Study Two: Three groups of people studied after breast reduction surgery. Hypnosis group healed "significantly faster" than supportive attention group and control group. Harvard Medical School, Carol Ginandes and Union Institute in Cincinnati, Patricia Brooks, Harvard University Gazette Online at http://www.hno.harvard.edu/gazette/2003/05.08/01-hypnosis.html.
(Also New Scientist, October 10, 1992.)
Analysis of the simple-simple main effects, holding both group and condition constant, revealed that application of hypnotic analgesia reduced report of pain intensity significantly more than report of pain unpleasantness. Dahlgren LA, Kurtz RM, Strube MJ, Malone MD, Differential effects of hypnotic suggestion on multiple dimensions of pain. Journal of Pain & Symptom Management. 1995; 10(6): 464-70.
The improvement was confirmed by the subjective evaluation data gathered with the use of a questionnaire and by a significant reduction in anxiety scores. Melis PM, Rooimans W, Spierings EL, Hoogduin CA, Treatment of chronic tension-type headache with hypnotherapy: a single-blind time controlled study. Headache 1991; 31(10): 686-9.
Patients in the hypnosis group reported less post treatment pain than did patients in the control group. The findings are used to replicate earlier studies of burn pain hypnoanalgesia, explain discrepancies in the literature, and highlight the potential importance of motivation with this population. Patterson DR, Ptacek JT, Baseline pain as a moderator of hypnotic analgesia for burn injury treatment. Journal of Consulting & Clinical Psychology 1997; 65(1): 60-7.
Hypnosis Lowered Phantom Limb Pain
Hypnotic procedures appear to be a useful adjunct to established strategies for the treatment of phantom limb pain and would repay further, more systematic, investigation. Suggestions are provided as to the factors which should be considered for a more systematic research program. Treatment of phantom limb pain using hypnotic imagery. Oakley DA, Whitman LG, Halligan PW, Department of Psychology, University College, London, UK.
Hypnosis Has a Reliable and Significant Impact on Acute and Chronic Pain
Hypnosis has been demonstrated to reduce analogue pain, and studies on the mechanisms of laboratory pain reduction have provided useful applications to clinical populations. Studies showing central nervous system activity during hypnotic procedures offer preliminary information concerning possible physiological mechanisms of hypnotic analgesia. Randomized controlled studies with clinical populations indicate that hypnosis has a reliable and significant impact on acute procedural pain and chronic pain conditions. Methodological issues of this body of research are discussed, as are methods to better integrate hypnosis into comprehensive pain treatment. Hypnosis and clinical pain. Patterson DR, Jensen MP, Department of Rehabilitation Medicine, University of Washington School of Medicine, Seattle, WA USA 98104 Psychol Bull. 2003 Jul;129(4):495-521.
Hypnosis is a Powerful Tool in Pain Therapy and is Biological in Addiction to Psychological
Attempting to elucidate cerebral mechanisms behind hypnotic analgesia, we measured regional cerebral blood flow with positron emission tomography in patients with fibromyalgia, during hypnotically-induced analgesia and resting wakefulness. The patients experienced less pain during hypnosis than at rest. The cerebral blood-flow was bilaterally increased in the orbitofrontal and subcallosial cingulate cortices, the right thalamus, and the left inferior parietal cortex, and was decreased bilaterally in the cingulate cortex. The observed blood-flow pattern supports notions of a multifactorial nature of hypnotic analgesia, with an interplay between cortical and subcortical brain dynamics. Copyright 1999 European Federation of Chapters of the International Association for the Study of Pain. Functional anatomy of hypnotic analgesia: a PET study of patients with fibromyalgia. Wik G, Fischer H, Bragee B, Finer B, Fredrikson M, Department of Clinical Neurosciences, Karolinska Institute and Hospital, Stockholm, Sweden Eur J Pain. 1999 Mar;3(1):7-12.
Hypnosis Useful in Hospital Emergency Rooms
Hypnosis can be a useful adjunct in the emergency department setting. Its efficacy in various clinical applications has been replicated in controlled studies. Application to burns, pain, pediatric procedures, surgery, psychiatric presentations (e.g., coma, somatoform disorder, anxiety, and post traumatic stress), and obstetric situations (e.g., hyperemesis, labor, and delivery) are described. Emerg Med Clin North Am. 2000 May;18(2):327-38, x. The use of hypnosis in emergency medicine. Peebles-Kleiger MJ, Menninger School of Psychiatry and Mental Health Sciences, Menninger Clinic, Topeka, KS, USA. firstname.lastname@example.org
250 unselected IBS patients were treated in a clinic in Manchester, England, using 12 sessions of hypnotherapy over a 3-month period plus home practice between sessions. Marked improvement was seen in all IBS symptoms (overall IBS severity was reduced by more than half on the average after treatment), quality of life, and anxiety and depression. All subgroups of patients appeared to do equally well except males with diarrhea, who improved far less than other patients for unknown reason.
Possible physiological and psychological mechanisms of hypnosis treatment for IBS were investigated in two studies. Patients with severe IBS received seven biweekly hypnosis sessions and used hypnosis audiotapes at home. Rectal pain thresholds and smooth muscle tone were measured with a barostat before and after treatment in 18 patients (study I), and treatment changes in heart rate, blood pressure, skin conductance, finger temperature, and forehead electromyographic activity were assessed in 24 patients (study II). Somatization, anxiety, and depression were also measured. All central IBS symptoms improved substantially from treatment in both studies. Rectal pain thresholds, rectal smooth muscle tone, and autonomic functioning (except sweat gland reactivity) were unaffected by hypnosis treatment. However, somatization and psychological distress showed large decreases. In conclusion, hypnosis improves IBS symptoms through reductions in psychological distress and somatization. Improvements were unrelated to changes in the physiological parameters measured. 17 of 18 patients in study 1 and 21 of 24 patients in study 2 were judged substantially improved Improvement was well-maintained at 10-12 month follow up in study 2.
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