Current opinion in anaesthesiology
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Curr Opin Anaesthesiol · Oct 2019
ReviewRegional anesthesia and pain management in patients with sleep apnea: can they improve outcomes?
In several guidelines, regional anesthesia and analgesia have been suggested as safer alternatives for general anesthesia and systemic analgesia for their safety profile in patients suffering from obstructive sleep apnea (OSA). However, the underlying scientific basis is still evolving. The present review is intended to provide an up-to-date account on the question whether the use of regional anesthesia improves outcomes in patients with OSA. ⋯ Regional anesthesia can be recommended as a good strategy to treat patients with OSA whenever feasible, as it reduces the incidence of potentially catastrophic perioperative complications. However, the breadth of both surgical and regional anesthetic techniques analyzed is limited; further research should focus on extending the knowledge base beyond neuraxial anesthesia and orthopedics.
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Curr Opin Anaesthesiol · Oct 2019
ReviewAnesthesia and brain tumor surgery: technical considerations based on current research evidence.
Anesthetics may influence cancer recurrence and metastasis following surgery by modulating the neuroendocrine stress response or by directly affecting cancer cell biology. This review summarizes the current evidence on whether commonly used anesthetics potentially affect postoperative outcomes following solid organ cancer surgery with particular focus on neurological malignancies. ⋯ Further work at both the basic science and clinical level is urgently needed to evaluate the association between perioperative factors, including anesthetics/technique, and postoperative brain tumor outcomes.
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Curr Opin Anaesthesiol · Oct 2019
ReviewNeuroanesthesia and outcomes: evidence, opinions, and speculations on clinically relevant topics.
The objective of this review is to identify outstanding topics most relevant to neuroanesthesia practice and patient outcomes. We discuss the role of awake craniotomy, choice of general anesthetic agents, monitoring of anesthetic 'depth', mannitol-induced diuresis, neurophysiological monitoring, hyperventilation, and cerebral hypoperfusion. ⋯ We provide an overview of several topics that are relevant to neuroanesthesia practice and patient outcomes based on evidence, opinions, and speculations. Our review highlights the need for further outcome-oriented studies to specifically address these clinically relevant issues.
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Persistent postoperative pain (PPP) is a significant source of morbidity in our population. An excellent opportunity to understand the transition from acute to chronic pain states. Understanding the mechanisms that drive this and modulators that influence this transition is essential to both prevent and manage this condition. ⋯ Persistent maladaptive neuroplastic changes secondary to neurotrophic factors and interactions between neurons and microglia may well explain the phenomenon. This article reviews the current thought processes on mechanisms and modulators from a basic science and epidemiological perspective.
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Curr Opin Anaesthesiol · Oct 2019
ReviewFunctional anatomy of the nerve and optimal placement of the needle for successful (and) safe nerve blocks.
Summarize the current thinking concerning the clinically relevant aspects of nerve anatomy and best injection sites for nerve blocks. ⋯ It is necessary to have a better understanding of what intraneural injection is when dealing with any type of nerve blocks, be that single nerve, plexuses, or the sciatic nerve. Perineural injections provide successful anesthesia without putting the nerve integrity at risk. That practice is supported by years of experience and common sense. Currently, there is no evidence to support any kind of intraneural injections, intrafascicular or extrafascicular.