Current opinion in anaesthesiology
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Elimination of flammable anesthetic gases has had little effect on operating-room fires except to change their etiology. Electrocautery and lasers, in an oxygen-enriched environment, can ignite even the most fire-resistant materials, including the patient, and the fire triad possibilities in the operating room are nearly limitless. This review will: identify operating room contents capable of acting as ignition/oxidizer/fuel sources, highlight operating room items that are uniquely potent fire triad contributors, and operating room identify settings where fire risk is enhanced by proximity of triad components in time or space. ⋯ Operating room fires are infrequent but catastrophic. Operating room fire prevention depends on: (a)understanding how fire triad elements interact to create a fire, (b) recognizing how standard operating-room equipment, materials, and supplemental oxygen can become one of those elements, and (c) vigilance for circumstances that bring fire triad elements into close proximity.
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Curr Opin Anaesthesiol · Dec 2008
ReviewThe measurement of dyshemoglobins and total hemoglobin by pulse oximetry.
Recent advances in pulse oximetry have made it possible to noninvasively measure total hemoglobin, as well as the two most common dyshemoglobins. This review will trace the development and clinical application of multiwavelength pulse oximetry. ⋯ The development of multiwavelength pulse oximeters, which can measure total hemoglobin as well as dyshemoglobins, should result in improved patient care.
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Curr Opin Anaesthesiol · Dec 2008
ReviewReview of video laryngoscopy and rigid fiberoptic laryngoscopy.
Recent advances in fiberoptic systems and video technology have resulted in the development of new intubation devices and techniques. A defining characteristic of rigid fiberoptic and videolaryngoscopic techniques is that glottic opening is viewed indirectly in place of direct line-of-sight. Various issues common to all instruments in this group are highlighted, and a few recently released tools are described. The aim of this article is to review material published since January 2007. ⋯ As indirect laryngoscopic tools become more available, and clinicians become more facile in their use, the management of (potentially) difficult intubations is likely to change. Further technological advances are likely to lead to the development of even more new instruments.
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The purview of ambulatory anesthesia continues to broaden in response to national interest in controlling healthcare costs and eliminating unnecessarily expensive hospital stays. Recent advances in anesthesia allow us to minimize side effects and complications of anesthesia and surgery that might otherwise delay recovery and discharge. The purpose of this review is to highlight some of these latest advances in clinical care that may soon change how we practice. ⋯ The research and advances in clinical care described will likely influence how we manage our patients in the future, eliminating the need for prolonged hospital stay after surgery.
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Curr Opin Anaesthesiol · Dec 2008
ReviewAirway management in the outpatient setting: new devices and techniques.
There are an ever-increasing number of supraglottic airway devices available on the market, many being suitable for ambulatory surgery and the specific demands it creates. These include constraints of time, high turnover and the need for early and effective discharge. This article hopes to highlight the potential benefits of the current devices available. ⋯ Some of the unique advantages offered by certain devices lend themselves well to anaesthesia in ambulatory surgery. The laryngeal mask airway has a proven track record but newer airway devices are becoming more popular and may offer advantages. Further research is needed in this fast-moving field to assess these benefits, especially in specific cohorts of patients (such as the obese), who are appearing with increasing regularity on outpatient surgery lists.