Current opinion in anaesthesiology
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Cerebral oximetry, though first described for clinical use in cardiac surgery, has been increasingly used in the setting of thoracic surgery. Research focusing on the use of cerebral oximetry in this setting is relatively sparse. This review outlines our current understanding of the use of cerebral oximetry for thoracic surgery. ⋯ Although it is clear that cerebral desaturation can commonly occur during thoracic surgery, it is partly dependent upon how desaturation is defined. The relationship between cerebral desaturation and adverse outcomes after thoracic surgery, as well as the potential ability for cerebral oximetry to guide therapeutic modalities, awaits much needed additional research before being more widely accepted.
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Curr Opin Anaesthesiol · Feb 2014
ReviewUpdate on minimally invasive hemodynamic monitoring in thoracic anesthesia.
Advanced hemodynamic monitoring is indispensable for adequate management of patients undergoing major surgery. This article will summarize minimally invasive hemodynamic monitoring technologies and their potential use in thoracic anesthesia. ⋯ Many different minimally invasive hemodynamic monitoring devices have been developed and clinically introduced in the last years. They offer the advantage of being less invasive and easier to use. However, these techniques have several limitations and data are scarce in patients undergoing thoracic anesthesia, preventing their widespread use so far.
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Curr Opin Anaesthesiol · Feb 2014
ReviewCerebral protection: inflammation, endothelial dysfunction, and postoperative cognitive dysfunction.
Postoperative cognitive dysfunction (POCD) is a well recognized perioperative syndrome, with approximately 15% of patients over the age of 60 years displaying objectively measured decrease in cognitive function as a consequence of anesthesia and surgery. The exact cause, however, remains unknown. This review aims to update anesthesiologists on the recent advancements in the understanding of the pathophysiology of POCD. ⋯ Recent research points to a central role of a neuro-inflammatory cascade in POCD, with endothelial dysfunction potentially aggravating the insult. Investigating the genomic and molecular mechanisms that underlie the intervariation in the inflammatory response to surgery, improving the identification of appropriate endothelial and inflammatory biomarkers, and developing endothelial modulatory and anti-inflammatory (prevention and resolution) strategies are key areas of future translational research. This is important as the elderly, who show increased susceptibility to this and other perioperative illness syndromes, represent an ever-increasing proportion of patients presenting for surgery.
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Curr Opin Anaesthesiol · Feb 2014
ReviewNovel approaches in management of perioperative coagulopathy.
The recent advances in hemostatic monitoring, and discussion of the clinical implications of hemostatic therapies based on different blood components and factor concentrates. ⋯ Our understanding of perioperative coagulopathy, diagnostic tools, and therapeutic approaches has evolved in recent years. Additional multidisciplinary efforts are required to understand the optimal combinations, cost-effectiveness, and safety profiles of allogeneic components, and available factor concentrates.
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Curr Opin Anaesthesiol · Feb 2014
ReviewCerebral near-infrared spectroscopy in perioperative management of left ventricular assist device and extracorporeal membrane oxygenation patients.
Spinal cord ischemia after thoracoabdominal aortic interventions is a devastating complication because it significantly worsens the perioperative morbidity and mortality. Long-term outcome is also affected because of medical complications which are directly related to the neural deficits. Paraplegia has significant medical, social, and financial aspects. Limited mobility, the need for assistance in activities of daily living, makes paraplegia an important target for prevention. An understanding of spinal cord blood supply, risk factors for spinal ischemia, and strategies for spinal cord rescue in this setting can help minimize the negative outcome effects of this important complication. ⋯ The progression of spinal cord ischemia after thoracoabdominal aortic interventions can frequently be arrested before irreversible infarction results. This spinal cord rescue depends on the early detection and immediate multimodal intervention to maximize spinal cord oxygen supply. The devastating outcomes associated with spinal infarction in this setting offset the risks and knowledge gaps currently associated with contemporary interventions.