The Clinical journal of pain
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Comparative Study
The effect of opioids on driving and psychomotor performance in patients with chronic pain.
This study compared the psychomotor performance and driving ability of patients with chronic pain managed with stable regimens of opioid analgesics with that of normal healthy volunteers. The hypothesis was that patients with chronic pain on stable opioid analgesic regimens operate their automobiles safely with proficiency equal to normal volunteer controls. ⋯ Many patients with chronic pain, even if treated with potent analgesics such as morphine and hydromorphone, show comparable driving ability as normals.
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Case Reports
Painful hallucinations and somatic delusions in a patient with the possible diagnosis of neuroborreliosis.
Neuroborreliosis has become the most frequently recognized tick-borne infection of the nervous system in Europe and the United States. In addition to dermatological, cardiac, articular, and neurologic manifestations, psychiatric disorders such as depression, panic attacks, and schizophrenia-like psychosis can also arise. We report on a 61-year-old woman who developed a severe pain syndrome following several tick bites. ⋯ However, increasing delusions disclosed a psychotic episode, which ceased over time. We discuss therapeutic difficulties and psychiatric complications in the absence of a clear-cut diagnosis of neuroborreliosis. Although this patient might have suffered from late-onset schizophrenia with painful hallucinations right from the start of her disease, the case highlights psychiatric complications that might be associated with neuroborreliosis.
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Comparative Study
What do patients expect from their first visit to a pain clinic?
To examine patients' expectations of their first outpatient visit to a pain clinic. We asked patients what would be the most satisfying and the most disappointing outcomes of their visit and whether they expected changes in medication and further investigations to result from their consultation. ⋯ For patients attending pain clinics, the explanation of their pain problem is rated as important as the cure or relief of their pain. Improved understanding of patient expectations by pain clinic clinicians may lead to greater patient satisfaction and reduced treatment dropout.
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Comparative Study
Are the changes in postural control associated with low back pain caused by pain interference?
Voluntary limb movements are associated with involuntary and automatic postural adjustments of the trunk muscles. These postural adjustments occur prior to movement and prevent unwanted perturbation of the trunk. In low back pain, postural adjustments of the trunk muscles are altered such that the deep trunk muscles are consistently delayed and the superficial trunk muscles are sometimes augmented. This alteration of postural adjustments may reflect disruption of normal postural control imparted by reduced central nervous system resources available during pain, so-called "pain interference," or reflect adoption of an alternate postural adjustment strategy. ⋯ The results suggest that altered postural adjustments of the trunk muscles during pain are not caused by pain interference but are likely to reflect development and adoption of an alternate postural adjustment strategy, which may serve to limit the amplitude and velocity of trunk excursion caused by arm movement.