U Winklmaier1, K Wüst, F Wallner. 1. Hals-Nasen-Ohrenklinik, Universität Heidelberg. ursula.winklmaier@med.uni-heidelberg.de
Abstract
BACKGROUND: The aim of the study was to evaluate leakage of liquids in terms of water and artificially produced saliva past low-pressure cuffs of tracheal tubes. METHODS: Three different types of tracheal tubes, TRACOE vario, Rüsch Ultra-Tracheoflex, and Portex Blue Line Ultra, were tested in isolated pig tracheas by infusing 6 ml of water or artificially produced saliva over the cuff and measuring the volume of fluid leaking past the cuff after 5, 10, and 15 min. RESULTS: The leakage in the saliva experiments was significantly lower than in the water experiments (p < 0.05). The amount of leakage between the three different types of tubes showed statistically significant (p < 0.05) results. There was no statistically significant difference between tracheal tubes of 7 and 8 mm internal diameter. CONCLUSION: The present laboratory findings suggest that the three tracheal tubes studied will not guard against aspiration of water but they will prevent the leakage of artificial saliva to a great extent.
BACKGROUND: The aim of the study was to evaluate leakage of liquids in terms of water and artificially produced saliva past low-pressure cuffs of tracheal tubes. METHODS: Three different types of tracheal tubes, TRACOE vario, Rüsch Ultra-Tracheoflex, and Portex Blue Line Ultra, were tested in isolated pig tracheas by infusing 6 ml of water or artificially produced saliva over the cuff and measuring the volume of fluid leaking past the cuff after 5, 10, and 15 min. RESULTS: The leakage in the saliva experiments was significantly lower than in the water experiments (p < 0.05). The amount of leakage between the three different types of tubes showed statistically significant (p < 0.05) results. There was no statistically significant difference between tracheal tubes of 7 and 8 mm internal diameter. CONCLUSION: The present laboratory findings suggest that the three tracheal tubes studied will not guard against aspiration of water but they will prevent the leakage of artificial saliva to a great extent.
Authors: J D Rollnik; J Adolphsen; J Bauer; M Bertram; J Brocke; C Dohmen; E Donauer; M Hartwich; M D Heidler; V Huge; S Klarmann; S Lorenzl; M Lück; M Mertl-Rötzer; T Mokrusch; D A Nowak; T Platz; L Riechmann; F Schlachetzki; A von Helden; C W Wallesch; D Zergiebel; M Pohl Journal: Nervenarzt Date: 2017-06 Impact factor: 1.214