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- J Büttner and R Klose.
- Berufsgenossenschaftliche Unfalklinik Ludwigshafen.
- Anaesthesist. 1990 Aug 1;39(8):420-1.
AbstractFiberoptic endotracheal intubation with an endoscope (external diameter 4 mm) especially designed for anesthesiologists proved to be safe providing small-diameter tubes were used. The use of large-diameter tubes (I.D. 7.5-8.5 (mm)) involves a risk of the tip of the tube clinging to the arytenoid cartilages preventing any further advancement. To avoid this complication another special tube has been constructed, which fills the space between the endotracheal tube and the bronchoscope and centers the bronchoscope within the endotracheal tube. When this new tube was used there were no problems either in passing the bronchoscope through this "inner" tube or in withdrawing the inner tube after successful intubation. With the new device it was even possible to pass tubes with wider lumen into the trachea over the fiberscope with minimal difficulty and trauma.
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