Current pain and headache reports
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Curr Pain Headache Rep · Aug 2009
ReviewOveruse of acute migraine medications and migraine chronification.
Among individuals with episodic migraine, the influence of excessive acute medication use on the development of chronic migraine depends upon within-person characteristics (eg, headache frequency), class of drug, and frequency of medication use. Available data suggest that opioids induce migraine chronification (progression), and the effect is dose dependent (critical dose around 8 days of exposure per month) and more pronounced in men. Barbiturates also induce migraine progression, and the effect is dose dependent (critical dose around 5 days of exposure per month) and more pronounced in women. ⋯ NSAIDs protect against migraine progression unless individuals have 10 or more headache days per month (when they become inducers, rather than protective). Finally, caffeine-containing over-the-counter products increase risk of progression. While we await randomized trials, these findings should inform the choice of acute migraine treatments with the goal of reducing the risk of migraine progression to chronic migraine.
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Treatment of pain in the setting of sickle cell disease remains unsatisfactory. The approach remains to treat the pain symptomatically with escalating doses of non-opioid and opioid medications while any underlying inciting process is investigated. For the majority of patients with sickle cell disease, pain will always be part of their lives. Advances in the treatment of sickle cell pain will depend on multiple approaches, including both pharmacologic and nonpharmacologic.
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It is estimated that nearly half of the global adult population suffers from an active headache disorder, most of whom experience attacks on an episodic basis. The transition from episodic to chronic headache is a poorly understood process. ⋯ This review highlights findings from population-based studies on headache and other pain disorders and how they relate to each other, with a focus on understanding headache chronification. We also consider the limitations and methodological challenges in understanding how two different chronic pain disorders may be related.
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A growing body of literature has implicated comorbid psychopathology as a potential risk factor for the chronification of migraine. Of the psychiatric disorders, depressive and anxiety disorders have been most consistently associated with the chronification of migraine. A shared dysfunction of the serotonergic system, medication overuse, and psychological factors have been proposed to mediate this relationship, although the responsible mechanisms are still largely unclear. This article overviews literature on psychiatric comorbidities and migraine chronification, considers mechanisms underlying this relationship, and notes directions for future clinical and empirical work.
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Curr Pain Headache Rep · Aug 2009
ReviewRadiation, chemotherapy, and symptom management in cancer-related cognitive dysfunction.
Patients with cancer are concerned about their ability to interact with friends and family and to perform activities associated with daily living. The combined effects of the disease process, its treatment with surgery, radiation, and chemotherapy, and the medications used to manage symptoms may all impact cognitive function. Minimizing the effect of each treatment modality on cognitive processing requires an understanding of how these treatment modalities may impact cognition.