British journal of anaesthesia
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Comparative Study
Effect of tracheal tube cuff shape on fluid leakage across the cuff: an in vitro study.
This study compared the fluid leakage in the new 'tapered' shaped against the classic 'cylindrical' shaped tracheal tube cuffs when placed in different sized tracheas. ⋯ The tapered PU tube cuff was as effective as the cylindrical PU cuffs in smaller tracheal diameters and was more efficient than the cylindrical Microcuff PU tube cuff in larger tracheal diameter in preventing subglottic fluid leakage across the tube cuff tested in this in vitro study. PVC tube cuffs leaked much more and faster than PU cuffs.
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Letter Randomized Controlled Trial
Bonfils intubating fibrescope in normal paediatric airways.