Skip to main content

Fit and seal characteristics of a new paediatric tracheal tube with high volume–low pressure polyurethane cuff

Buy Article:

$51.00 plus tax (Refund Policy)



To evaluate a new paediatric tracheal tube (Microcuff, Weinheim, Germany) with an ultrathin high volume–low pressure polyurethane cuff. Methods: 

With approval of the Hospital Ethics Committee tracheas of children undergoing general anaesthesia were intubated using a Microcuff tube. Tube sizes were selected according to: internal diameter (mm) = age/4 + 3.5 in children aged ≥2 years. In newborns (≥3 kg) ≤1 year, ID 3.0-mm tubes, and in children from 1 to 2 years, internal diameter 3.5-mm tubes were used. Tubes were classified too large if no air leakage was obtained at an airway pressure of 20 cm H2O with the cuff not inflated. Sealing pressure was assessed by auscultation. Post-extubation croup requiring therapy was noted. Results: 

Five-hundred children were studied. In eight children the tubes were too large. Sealing pressure was 9.7 ± 2.5 cm H2O (4–20). In two patients postextubation croup required singular short-term therapy. Conclusions: 

Microcuff paediatric tracheal tubes provided tracheal sealing with cuff pressures considerably lower than usually accepted. The rate of tube exchange was very low (1.6%), as was the rate of airway morbidity (croup requiring therapy; 0.4%).

Keywords: Children, paediatric; croup, sealing, tracheal; cuff, high volume-low pressure; morbidity; tracheal tube

Document Type: Research Article


Affiliations: Department of Anaesthesia, University Children's Hospital Zurich, Zurich, Switzerland

Publication date: February 1, 2005


Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more