Pain
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Case Reports
Pulsed radiofrequency treatment of the Gasserian ganglion in patients with idiopathic trigeminal neuralgia.
Pulsed radiofrequency treatment has been described as a minimal invasive alternative to radiofrequency thermocoagulation for the management of chronic pain syndromes. We present here our first five high-risk patients with idiopathic trigeminal neuralgia who were treated with pulsed radiofrequency after multidisciplinary assessment; with a mean follow-up of 19.2 months (range 10-26). ⋯ An excellent long-term effect was achieved in three of the five patients, a partial effect in one patient and a short-term effect in one patient. No neurological side effects or complications were reported.
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A patient's readiness to adopt a self-management approach to pain has been suggested as a construct that may explain differences among patients in coping, adjustment, and response to multidisciplinary pain treatment. The pain stages of change questionnaire (PSOCQ; Pain, 72 (1997) 227) was designed to assess four components of this construct. ⋯ The findings supported the first hypothesis and provided mixed support for the second. The implications of the findings for understanding the readiness to self-manage pain construct and the validity of the PSOCQ for assessing this construct are discussed.
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Catastrophizing about pain has emerged as a critical variable in how we understand adjustment to pain in both adults and children. In children, however, current methods of measuring catastrophizing about pain rely on brief subscales of larger coping inventories. Therefore, we adapted the Pain Catastrophizing Scale (Sullivan et al., 1995) for use in children, and investigated its construct and predictive validity in two studies. ⋯ This three factor structure is invariant across age groups and gender. Study 2 revealed in a clinical sample of children with chronic or recurrent pain (23 girls, 20 boys; age range between 8 years 3 months and 16 years 6 months) that catastrophizing about pain had a unique contribution in predicting pain intensity beyond gender and age, and in predicting disability, beyond gender, age and pain intensity. The function of pain catastrophizing is discussed in terms of the facilitation of escape from pain, and of the communication of distress to significant others.
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Recent clinical studies showed that acute migraine attacks are accompanied by increased periorbital and bodily skin sensitivity to touch, heat and cold. Parallel pre-clinical studies showed that the underlying mechanism is sensitization of primary nociceptors and central trigeminovascular neurons. The present study investigates the sensory state of neuronal pathways that mediate skin pain sensation in migraine patients in between attacks. ⋯ The absence of clinically or overt laboratory expressed allodynia suggests that pain pathways are not sensitized in the pain-free migraine patients. Nevertheless, the increased temporal summation, and the slight decrease in mechanical pain thresholds, suggest that central nociceptive neurons do express activation-dependent plasticity. These findings may point to an important pathophysiological change in membrane properties of nociceptive neurons of migraine patients; a change that may hold a key to more effective prophylactic treatment.
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Attachment theory and research suggest that patterns of interpersonal relationships may be important determinants of illness behavior, care seeking, and treatment response in individuals with chronic health problems, including chronic pain. Attachment styles have been shown to be associated with psychological adjustment in the context of chronic illness, but little research has been conducted so far examining these relationships in patients with chronic pain. ⋯ Preoccupied attachment style was associated with greater than weekly pain-related visits at 12 months follow-up, even after controlling for depression, catastrophizing and pre-treatment pain-related health care utilization. The findings suggest that attachment style may be a useful construct for examining factors affecting adjustment and treatment response of patients with chronic pain.