منابع مشابه
CON: laryngeal masks must not be used for surgery in the prone position.
First, do no harm! For our profession, this means that our most important concern must be patient safety. In a world with limited resources, the quest for safety is in constant conflict with the demand for efficiency. Ultimately, it is a trade-off of production pressure against safety. This conflict has a distinct problem: whereas production can be measured quite easily, safety only becomes vis...
متن کاملChanges in the intracuff pressure of the laryngeal masks airway caused by repeated use.
PURPOSE To observe the changes in permeability and elasticity in the cuff of the laryngeal mask airway (LMA) caused by repeated use. METHODS In vitro use was simulated on six # 4 LMAs on 140 occasions. Ambient air was insufflated into the cuff until a value of 200 mmHg intracuff pressure (ICP) was reached, and this was maintained for 50 min. After each simulation, the LMA was sterilized at 12...
متن کاملLaser ionized preformed plasma
The Facility for Advanced Accelerator and Experimental Tests (FACET) at SLAC installed a 10-TW Ti : sapphire laser system for pre-ionized plasma wakefield acceleration experiments. High energy (500 mJ), short (50 fs) pulses of 800 nm laser light at 1 Hz are used at the FACET experimental area to produce a plasma column. The laser pulses are stretched to 250 fs before injection into a vapor cell...
متن کاملNotch Filter Masks: Practical Image Masks for Planet-Finding Coronagraphs
An ideal coronagraph with a band-limited image mask can efficiently image off-axis sources while removing identically all of the light from an on-axis source. However, strict mask construction tolerances limit the utility of this technique for directly imaging extrasolar terrestrial planets. We present a variation on the basic band-limited mask design—a family of “notch filter” masks—that mitig...
متن کاملComparison of cuff-pressure changes in silicone and PVC laryngeal masks during nitrous oxide anaesthesia in spontaneously breathing children.
BACKGROUND The purpose of this study was to evaluate the cuff pressures of four different laryngeal masks in paediatric patients undergoing routine surgery and to determine whether there is a substantial increase in cuff pressure when silicone masks are used compared to PVC laryngeal mask airways. METHODS Hundred and forty patients aged < 16 yr were randomly allocated to receive one of four e...
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ژورنال
عنوان ژورنال: Anaesthesia
سال: 2000
ISSN: 0003-2409
DOI: 10.1046/j.1365-2044.2000.01557-13.x