Current opinion in anaesthesiology
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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.
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Curr Opin Anaesthesiol · Oct 2019
ReviewAnaesthesia for stroke thrombectomy: technical considerations based on outcome evidence.
Stroke is the second leading cause of death and the third leading cause of disability worldwide. Treatment is time limited and delays cost lives. This review discusses modern stroke management, during a time when treatments and guidelines are rapidly evolving. ⋯ An individualized approach to the patient's anaesthetic management is optimal, and depends on close communication with the neurointerventionalist regarding patient and procedure-specific variables. No specific anaesthetic agent is preferred. Guiding principles are minimization of time delay, and maintenance of cerebral perfusion pressure.
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Curr Opin Anaesthesiol · Oct 2019
ReviewTransfusion in adults and children undergoing neurosurgery: the outcome evidence.
Transfusion is a common practice during neurosurgery. However, there is no evidence-based consensus on transfusion practice in neurosurgery. This review summarizes the evidence pertinent to the commonly used transfusion triggers in neurosurgical patients. ⋯ There is a scarcity of high-quality outcome-based evidence for transfusion practice in neurosurgery. In the absence of quality evidence, the transfusion practice in neurosurgical patients should be based on the understanding of the complex pathophysiology related to anemia and coagulopathy and the balance between the risks and benefits associated with blood product transfusion. The practice guided by tissue oximeter and viscoelastic tests appears promising, but needs to be validated by future studies.
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Curr Opin Anaesthesiol · Oct 2019
ReviewThe impact of frailty and sarcopenia on patient outcomes after complex spine surgery.
Frailty and sarcopenia represent a state of increased fragility and decreased reserve, and both have been associated with worse outcomes after surgery. The present review focuses on the definitions and measurement tools used to assess frailty and sarcopenia in patients with spinal disorder, and the relationships between frailty, sarcopenia, and postoperative outcomes in patients undergoing complex spine surgery. ⋯ Frailty and sarcopenia are increasingly recognized as important predictors of adverse outcomes after complex spine surgery. The optimal tool to measure frailty and sarcopenia in patients with spinal disorders remains unclear, and the role of surgery as an intervention to reverse frailty requires further investigation.
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Curr Opin Anaesthesiol · Oct 2019
ReviewHyperventilation in neurological patients: from physiology to outcome evidence.
Hyperventilation is commonly used in neurological patients to decrease elevated intracranial pressure (ICP) or relax a tense brain. However, the potentially deleterious effects of hyperventilation may limit its clinical application. The aim of this review is to summarize the physiological and outcome evidence related to hyperventilation in neurological patients. ⋯ Although hyperventilation is commonly applied in patients with TBI or intracranial hemorrhage or in those undergoing craniotomy, its effects on patient outcomes have not been proven by quality research. Hyperventilation should be used as a temporary measure when treating elevated ICP or to relax a tense brain. Outcome research is needed to better guide the clinical use of hyperventilation in neurological patients.