Pain practice : the official journal of World Institute of Pain
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The aim was to evaluate differences in the autonomic nervous system (ANS) activity, indexed by heart rate variability (HRV) in apparently healthy subjects with self-reported symptoms of pain (SRSP) within an exploratory analysis. ⋯ Consistent with evidence on changes in HRV in patients with clinical conditions of chronic or recurrent pain, this is the first study to show that healthy individuals who report symptoms of pain may have lower parasympathetic activity revealed by measures of HRV.
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Randomized Controlled Trial Clinical Trial
The Effect of Methylnaltrexone on the Side Effects of Intrathecal Morphine after Orthopedic Surgery under Spinal Anesthesia.
Methylnaltrexone is a peripheral opioid receptor antagonist that does not cross the blood-brain barrier; so without interference with pain relief, it could reverse the peripheral opioid side effects such as constipation, pruritus, postoperative ileus, and urinary retention. This study has been designed to evaluate the effect of methylnaltrexone on postoperative side effects of intrathecal morphine. In seventy-two 18- to 55-year-old patients scheduled for elective orthopedic operations under spinal anesthesia, neuraxial blockade was achieved using 10 mg 0.5% hyperbaric bupivacaine and 0.1 mg preservative-free morphine sulfate. ⋯ Pain score was significantly lower in group M. Respiratory depression or decreased level of consciousness was not reported in any patient. Subcutaneous administration of methylnaltrexone was not effective in decreasing postoperative urinary retention and pruritus, but lowered the rate of nausea and vomiting and pain score after intrathecal bupivacaine and morphine.
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Systematic pain registration and assessment with a visual analog scale (VAS) or numeric rating scale (NRS) at each visit are key recommendations in one of the most recent guidelines on cancer pain management. It is unclear whether this recommendation is applied. ⋯ Pain in medical oncology outpatients is not systematically registered in their medical records. With one exception, pain was not registered with a VAS or NRS. Yet, registration and assessment of pain to monitor pain are essential to evaluate and adapt pain treatment over time. Pain registration has not improved since 2001 and therefore implementing the recommendations regarding systematic monitoring of pain is needed.
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Pain drawings have frequently been used for documentation of pain and a convenient diagnosis tool. Pain drawings were found to be associated with psychological states in chronic patients with low back pain. Few researchers have investigated pain drawings except in low back pain. The aim of this study was to investigate the pain, pain drawings, psychological characteristics, and pain interference in the head, neck-shoulder (NS), and low-back/lower-limb (LB-LL) regions among patients with chronic pain. ⋯ Our results suggest that the characteristics of patients with nonorganic drawings differ according to body regions.
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Opioid induced depression of sex hormones is a common finding in chronic pain patients receiving long-term opioids by oral, parenteral and even intrathecal routes of administration. The hypothalamic suppression by opioids leads to a hypogonadal state with low testosterone levels in males and subsequent low bone mineral density (BMD). ⋯ Testosterone supplementation was found to largely correct the effects of intrathecal opioids on testosterone levels and BMD.