Der Schmerz
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Erythromelalgia is a rare disease that is associated with hemato-oncological diseases or after taking certain drugs and toxins, but it can also occur as an independent clinical picture, for example, due to mutations in the sodium channel NaV1.7. Clinically, there is a characteristic triad of attack-like burning pain and skin redness in the area of the distal extremities, which can be alleviated by excessive cooling. ⋯ Important differential diagnoses are complex regional pain syndrome, the non-freezing cold injury, and small fiber neuropathies. Therapy is multidisciplinary and has to be planned individually and include physical therapy and psychotherapy as well as drug therapy as integral components.
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Review Meta Analysis
Efficacy, tolerability and safety of cannabis-based medicines for cancer pain : A systematic review with meta-analysis of randomised controlled trials.
The importance of medical cannabis and cannabis-based medicines for cancer pain management needs to be determined. ⋯ Very low quality evidence suggests that oromucosal nabiximols and THC have no effect on pain, sleep problems and opioid consumption in patients with cancer pain with insufficient pain relief from opioids. The complete manuscript is written in English.
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Since March 2017, the prescription of medical cannabis at the expense of the statutory health insurance is possible after approval by the respective medical services. Chronic pain is the most common indication, as health claims data and the accompanying survey show. From the point of view of the law, a prescription is indicated in cases of serious illness, missing or not indicated established therapeutic approaches and a not entirely remote prospect of improvement of the illness or its symptoms. ⋯ It is also problematic that almost no long-term studies for the application and efficacy of flowers and extracts are available. Current knowledge on the use of cannabis-based drugs and, more clearly, medical cannabis for chronic pain is insufficient. The increase in the number of countries with marketing authorisations or exemptions for medicinal cannabis or cannabis-based drugs for chronic pain will also pave the way for larger empirical and population-based studies that will further improve the evidence base of research and clinical use.
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There are uncertainties among physicians with respect to the indications, selection of drugs, effectiveness and safety of cannabis-based medicines for chronic pain. ⋯ Statutory health insurance pain physicians in Saarland were reluctant to prescribe cannabis-based medicines. Dronabinol was effective and well-tolerated in the majority of the highly selected patients.
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The law on the amendment of the narcotics law and other regulations, which was accepted by consensus by the German Parliament, significantly expanded the options for the use of cannabis-based medicinal products. In individual cases, already approved cannabis-based medicinal products can also be prescribed outside the approved indication at the expense of the statutory health insurance funds (GKV). The cost of treatment with cannabis flowers and extracts as well as dronabinol, which are not approved under the drug law, will also be covered by the GKV upon application. ⋯ In addition, physicians are obliged to participate in an accompanying survey. To this end, they must send data to the Federal Institute for Drugs and Medical Devices providing information about treatment with cannabis-based medicinal products. When prescribing medical cannabis products as defined in the Act of 6 March 2017 amending the law on narcotic drugs and other regulations, physicians assume a special responsibility that goes far beyond the responsibility for the use of authorized finished medicinal products.