Der Schmerz
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An online questionnaire about cannabis medication (CAM) was sent to German pain therapists 1 year after the introduction of the new act "Amendment to drug and other regulations" of 06.03.2017. ⋯ The study shows an information deficit in knowledge and handling of selected CAM among physicians. Given the high rejection rate, there may also be a knowledge gap on the side of the health insurances. From a certain number of patients upwards, the non-interventional accompanying survey required by law was deemed to be barely practicable from both a time and an economical point of view.
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In Germany, physicians who prescribe cannabis-based medicines at the expense of the statutory health insurance are obliged to take part in an accompanying survey. Pain was the most commonly reported diagnosis, making an interim evaluation for the indication of pain feasible. ⋯ Physicians should comply with their legal obligation to participate in the accompanying survey. Pain is by far the most common diagnosis in cannabis drugs. For about one third of these patients, physicians reported a clear improvement in pain. Due to the amount of data hitherto and the limitations in the accompanying survey, the results should not be overinterpreted in terms of efficacy and should always be related to existing reviews. The lower age and higher proportion of men among patients treated with cannabis flowers were remarkable. At 37.6%, the overall drop-out rate was high. The most frequent side effects related to vigilance and are therefore highly relevant in terms of driving ability, work ability and risk of falling. For a differentiated evaluation of treatment success, more data needs to be available.
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On March 10th 2017, the law amending narcotic and other regulations was expanded, thereby allowing physicians, irrespective of their specialization, to prescribe cannabis-derived medicines as magistral formulas or proprietary medicinal products at the expense of the German statutory health insurance (GKV). First prescription requires approval from the respective health insurance, which in turn commissions the Medical Advisory Board of the Statutory Health Insurance Funds (MDK) to prepare a medico-legal report. ⋯ Numerous problems reported elsewhere and relating to prescription of cannabis-derived medicines were also observed by the MDK Nord. Many prescriptions reflected an uncertainty regarding therapeutic use of cannabis-derived medicines. Thus, one should consider restricting the prescription of cannabis-derived medicines to selected specialists. It should be noted that, in individual cases, e.g., patients suffering from neuropathic pain, treatment with cannabis-derived medicines seems to be a reasonable therapeutic option taking into account the risks and benefits.
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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.