The Clinical journal of pain
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Advances in neurobiology serve as the basis for current and evolving implantable pain modalities, consisting of neurostimulation and neuraxial drug administration systems. Appropriate treatment of pain begins with an accurate diagnosis based on thorough physical and behavioral evaluations. ⋯ Patients with chronic pain are subject to neurophysiological, emotional, and behavioral influences that govern their perception of pain and of pain relief. Therefore, treatment of chronic pain is multidisciplinary, drawing on cognitive and behavioral psychological therapies, functional rehabilitation, orthopedic and neurologic surgery, medications, nerve blockade, neuroaugmentative procedures, and sometimes neurodestructive procedures. Appropriate selection of patients helps ensure that implantable therapies are used for those who are most likely to benefit.
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The specific use of psychological screenings to determine appropriateness for lumbar discectomy surgery and predict outcomes is not well understood. Data from spine surgery as a whole are not likely generalizable to the patient with a significant disc herniation considering surgery. As opposed to most "back pain syndromes," acute and subacute sciatica from disc hemiation has a very high chance of dramatic and lasting improvement with surgery. ⋯ However, the same psychometric profile in those patients with chronic sciatica pain and disability does predict worse outcomes compared with chronic pain in less emotionally distressed patients. The data suggest that the ability to rapidly relieve pain in the case of disc herniation may limit the morbid effects of psychological distress seen in many back pain syndromes. With prolonged pain and emotional distress, however, adverse and possibly self-perpetuating psychological and social changes may significantly decrease the impact of disc surgery.
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Comparative Study
A comparison of blacks and whites seeking treatment for chronic pain.
Most conceptualizations of chronic pain acknowledge the importance of culture and social circumstances. Cultural and social influences may differ for persons of different racial or ethnic groups, and this circumstance may lead them to experience and adjust differently to pain. The current study compared adjustment to chronic pain by blacks and whites seeking treatment for chronic pain. ⋯ These results show that blacks and whites with chronic pain experience pain differently. Several factors may underlie these differences, including family situation, health care experiences, or other unmeasured behavioral, environmental, or social influences. Other investigators should attempt to replicate these findings and more closely examine variables that may explain them.
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The prevalence and excessive cost of pain, especially when the pain becomes chronic, remains a major health-care problem in the United States. Currently, a biopsychosocial perspective of pain has been found to be the most heuristic approach to understanding and managing it. Using this perspective, an important advance has been made in the possibility of individually tailoring treatment for each patient, with the result being better outcomes. ⋯ The papers by Praeger, Jacobs, and Robinson et al. in this special topics series describe the approach to pretreatment assessment for these modalities in detail. Finally, the author presents a stepwise, biopsychosocial approach as the basis for assessment before decisions regarding surgery, opioid maintenance therapy, and implantable pain-management modalities. The author suggests that systematic pretreatment interventions will facilitate a more structured standard of care in the evaluation and treatment of patients with pain and ultimately better outcomes.
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A 73-year-old woman with bilateral severe pain in her legs and feet was admitted to the hospital. The pain had started spontaneously without any known trauma a year earlier and had progressively worsened to the point that she was unable to walk. The patient complained of pain, discoloration, and sweating of the lower extremities. Physical examination revealed swollen, cold, wet, and blue extremities, with both allodynia and hyperalgesia, fulfilling criteria for a diagnosis of complex regional pain syndrome (CRPS) type 1. Laboratory findings demonstrated a hemoglobin level of 180 g/L(-1) and a hematocrit of 47%, leading to a diagnosis of polycythemia vera (PCV). Her condition slowly improved after repeated venesection, mild analgesics, and amitriptyline. ⋯ Polycythemia vera has not been described previously as a contributing factor in CRPS. In the present case, the diagnosis of PCV was important, because its treatment also improved the CRPS.