Der Anaesthesist
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Local anesthetics (LA) are broadly used in all disciplines and it could be considered that relatively little is reflected on the mechanisms of action of this old substance group. However, several molecular mechanisms of LAs mediating wanted and unwanted effects remain to be explored. Furthermore, the number of indications for application of LAs seems to be expanding. ⋯ Although the cardiac and central nervous toxicity at least partly result from an unselective block of neuronal and cardiac sodium channels, preclinical studies suggest the involvement of several mechanisms. A local LA toxicity is less clinically impressive; however, all LAs induce a significant tissue toxicity for which the underlying mechanisms have been partly identified. This review reports on recent findings on mechanisms and on the clinical relevance of some LA-induced effects which are of relevance for anesthesiological activities.
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Peripheral electrical nerve stimulation is one of the standard applications in peripheral regional anesthesia in addition to the ultrasound technique. Among other findings, the visualization of needle and nerve during ultrasound-guided blockade caused a change in clinical practice of peripheral nerve stimulation in the last decade. In the present article old and new aspects of principles and clinical practice of the nerve stimulation technique are presented and summarized in a total clinical concept in order to achieve safe and successful peripheral regional anesthesia using electrical peripheral nerve stimulation.
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Blast injuries may result from a variety of causes but the biomechanical impact and pathophysiological consequences do not differ between domestic or industrial accidents or even terrorist attacks. However, this differentiation relevantly affects the tactical procedures of the rescue teams. ⋯ The rareness of blast injuries in a civilian setting results in a lack of experience on the one hand but on the other hand the complexity of blast injuries to the human body places high demands on the knowledge and skills of the entire rescue team for competent treatment. The purpose of this article is to explain the physicochemical principles of explosions and to convey tactical and medical knowledge to emergency medical services.
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There is a high level of evidence that parental presence during induction of anesthesia in children does not lead to a reduction of fear and better cooperation of the child. However, pediatric anesthetists often encounter the request of parents to be present during the induction of anesthesia which is current practice in many countries. This article explains the grounds and the premises for this practice and describes those factors which might be important to support parental presence during induction of anesthesia in children. Some practical advice and tips on how parental presence in the clinic can be practically implemented are given at the end of the article.
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Tragic accidents, e.g. involving celebrity patients or severe incidents in hospital occur suddenly without any advance warning, often produce substantial interest by the media and quickly overburden management personnel involved in both hospitals and emergency medical services. While doctors, hospitals and emergency medical services desire objective media reports, the media promote emotionalized and dramatized reports to ensure maximum attention and circulation. When briefing the media, the scales may quickly tilt from professional, well-deliberated information to unfortunate, often unintended disinformation. ⋯ Each hospital or emergency medical service should have a professional department for public relations, an exact knowledge of the regional and national media and strategies how to handle an incident that is of interest for the media. The media should be provided with information not only when a negative incident has happened but should be provided with regular positive messages as well. An interview must be carefully prepared to achieve a good image.