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Updated Criteria for CRPS Diagnosis May Reveal Presence of Neuropathic Pain After TKA

Use of the 2006 vs 2007 criteria for the diagnosis of complex regional pain syndrome may lead to the misdiagnosis of patients experiencing unexplained excessive pain after total knee arthroplasty.

Updated Criteria for CRPS Diagnosis May Reveal Presence of Neuropathic Pain After TKA


Orginally Published At: Neuropathic Pain

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Signs and Symptoms in 1,043 Patients with Complex Regional Pain Syndrome

Complex regional pain syndrome (CRPS) may develop as a severe complication after limb trauma or lesions of the peripheral nervous system. One primary feature of CRPS is “continuing pain […] disproportionate to any inciting event”.26 Additional possible characteristic symptoms include sensory (hyperesthesia, allodynia), vasomotor (asymmetric temperature or skin color), motor (dysfunctions, restriction), and trophic changes (altered growth of skin appendages), edema, and changes in sweating of affected extremities.

Signs and Symptoms in 1,043 Patients with Complex Regional Pain Syndrome

Orginally Published At: Pain Journal

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Research Design Characteristics of Published Pharmacologic Randomized Clinical Trials for Irritable Bowel Syndrome and Chronic Pelvic Pain Conditions: An ACTTION Systematic Review

Chronic pain conditions occurring in the lower abdomen and pelvis are prevalent, often challenging to manage, and can negatively affect health-related quality of life, including psychosocial and sexual well-being.3,8,25,27,32,37 Very few U.S. Food and Drug Administration (FDA) or European Medicines Agency (EMA) approved treatments currently exist for these conditions. The dearth of treatments arises, in part, from methodological challenges in designing randomized clinical trials (RCTs) to evaluate the efficacy of novel treatments in these conditions.

Research Design Characteristics of Published Pharmacologic Randomized Clinical Trials for Irritable Bowel Syndrome and Chronic Pelvic Pain Conditions: An ACTTION Systematic Review

Orginally Published At: Pain Journal

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Identification of Myofascial Trigger Points in Upper Quarter Muscles May Reliably Diagnose Myofascial Pain Syndrome

The presence of active myofascial trigger points in 10 upper quarter muscles may represent a reliable criteria for the diagnosis of myofascial pain syndrome.

Identification of Myofascial Trigger Points in Upper Quarter Muscles May Reliably Diagnose Myofascial Pain Syndrome


Orginally Published At: Musculoskeletal Pain

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A Kappa Opioid Receptor Agonist Blocks Bone Cancer Pain Without Altering Bone Loss, Tumor Size, or Cancer Cell Proliferation in a Mouse Model of Cancer-Induced Bone Pain

Tumor growth within bone is associated with moderate to severe pain. Pain is the most feared consequence of cancer and greatly diminishes the patient’s quality of life.5,34 Mu opioid receptor (MOR)-mediated drugs such as morphine and fentanyl remain the gold standard for the treatment of moderate to severe cancer pain including ongoing and breakthrough cancer pain.1 However, the severity of cancer pain generally requires high doses, and sustained treatment leads to tolerance, which leads to dose escalation.

A Kappa Opioid Receptor Agonist Blocks Bone Cancer Pain Without Altering Bone Loss, Tumor Size, or Cancer Cell Proliferation in a Mouse Model of Cancer-Induced Bone Pain

Orginally Published At: Pain Journal

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Ecological Momentary Assessment Methodology in Chronic Pain Research: A Systematic Review

Pain intensity represents the primary outcome in most clinical trials of pain disorders and is nearly universally assessed in chronic pain research.32,79 Chronic pain affects over 11% of the population of the United States,90 and there is an undisputed need for the accurate and reliable assessment of pain. Although alternatives to self-reported pain intensity (eg, observation of pain behaviors64) have previously been considered, self-reports presently constitute the gold standard of pain assessment because they are able to reflect the subjectivity inherent in the pain experience.

Ecological Momentary Assessment Methodology in Chronic Pain Research: A Systematic Review

Orginally Published At: Pain Journal

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Migraine and Multiple Sclerosis: What Is the Link?

Increasing evidence suggests a relationship between migraine and multiple sclerosis that is beyond comorbidity and may help clarify the pathophysiology of both disorders.

Migraine and Multiple Sclerosis: What Is the Link?


Orginally Published At: Neuropathic Pain