• Der Anaesthesist · Jan 2004

    [Microcuff pediatric tracheal tube. A new tracheal tube with a high volume-low pressure cuff for children].

    • M Weiss, A Dullenkopf, and A C Gerber.
    • Anästhesieabteilung, Universitäts-Kinderklinik, Zürich, Switzerland. markus.weiss@kispi.unizh.ch
    • Anaesthesist. 2004 Jan 1;53(1):73-9.

    BackgroundPrinciples and characteristics of the recently introduced Microcuff paediatric tracheal tube (Microcuff, GmbH, Weinheim, Germany) with anatomically based depth markings, cuff-free subglottic tube shaft and short high volume-low pressure cuff with ultrathin cuff membrane are presented. First available tubes (ID 4.0 mm) were evaluated regarding cuff pressures required to seal the trachea and regarding the distance from the tube tip to the carina.MethodsAfter obtaining approval of the local ethical committee, 20 children aged 2-4 years, receiving tracheal intubation under general anaesthesia with muscle paralysis, were included. The tubes were placed during direct laryngoscopy and the glottic depth marking placed between the vocal cords. Cuff pressure to prevent audible air leakage at standardised ventilator settings (PIP 20 cm H(2)O/PEEP 5 cm H(2)O/RR20 x min(-1)) was assessed by means of a cuff pressure manometer within 5 min after intubation. Subsequently, the distance from the tube tip to the tracheal carina was measured by means of fibre bronchoscopy. Data are presented as the median (range).ResultsPatient age was 3.0 years (2.0-3.9 years), weight 13.5 kg (9.1-19.2 kg) and body length 95 cm (79-105 cm). The lowest cuff pressure required to seal the trachea ranged from 4-14 cmH(2)O (median 10 cm H(2)O), the distance from tube tip to tracheal carina was to 2.9 cm (2.0-4.5 cm).ConclusionsThe new Microcuff paediatric tracheal tube with ultrathin high volume-low pressure cuff required tracheal sealing pressures below tracheal wall pressures usually required with uncuffed tracheal tubes for efficient sealing and ventilation at 20 cm H(2)O peak inspiratory pressure. The distance from the tube tip to carina was in the safe range in all patients.

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    This article appears in the collection: Use of cuffed endotracheal tubes in pediatric anesthesia.

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