PMID: 16645447Apr 29, 2006Paper

Determination of endotracheal tube size in a perinatal population: an anatomical and experimental study

Anesthesiology
Pierre FayouxBruno Marciniak

Abstract

This study aimed at correlating anatomical dimensions of the larynx and trachea to age and weight in a prenatal population. Endotracheal tube size determination was then proposed according to these considerations. Anatomical measurements were obtained during 150 fetal and infant postmortem examinations. The optimal endotracheal tube size was determined by three methods: clinically, by a pressure method using calibrated inextensible balloons, and anatomically by comparing the laryngotracheal perimeter to the tube perimeters. Based on these results, recommended tube sizes were calculated. In premature babies before 37 weeks gestation, the optimal tube size according to pressure estimation was significantly greater than that determined by anatomical measurement alone. This difference was no longer valid after 40 weeks gestation. This study identified the elasticity of laryngeal structures in premature babies, allowing intubation with tube sizes greater than predicted by anatomical measurements with an increasing injury risk located in the posterior part of the glottic plane. This elasticity disappears near 40 weeks gestation, and the injury risk then predominates in the subglottic region. These results lead the authors to recommen...Continue Reading

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Citations

Oct 11, 2011·Surgical and Radiologic Anatomy : SRA·Michał SzpindaCelestyna Mila-Kierzenkowska
Jun 20, 2013·Surgical and Radiologic Anatomy : SRA·Michał SzpindaWaldemar Siedlaczek
Jul 11, 2012·Neonatology·Debra DenningtonJae H Kim
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Apr 27, 2010·Anesthesia and Analgesia·Josef F HolzkiChristian Puder
Jun 1, 2012·Medical Science Monitor : International Medical Journal of Experimental and Clinical Research·Michał SzpindaMonika Paruszewska-Achtel
Feb 24, 2009·Journal of Cardiothoracic and Vascular Anesthesia·Emad Mossad, George Youssef
Jan 31, 2008·Paediatric Anaesthesia·Ueli MoehrlenMarkus Weiss
Oct 12, 2014·The Annals of Otology, Rhinology, and Laryngology·Arunabha KarmakarPaul M Weinberger
Jan 18, 2018·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·Nai-Chieh LiuJane F Ladlow
Jan 30, 2020·Paediatric Anaesthesia·Romain LuscanBriac Thierry
Sep 7, 2018·Canadian Respiratory Journal : Journal of the Canadian Thoracic Society·Gustavo RochaHercília Guimarães
May 29, 2018·Pediatric Pulmonology·Mital H DaveMarkus Weiss
Mar 10, 2017·Pediatric Critical Care Medicine : a Journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies·Katherine E KruseGregory B Hammer
Feb 6, 2020·The Lancet Child & Adolescent Health·Daniele De LucaVirgilio P Carnielli
Mar 25, 2021·Seminars in Fetal & Neonatal Medicine·Daniele De LucaEduardo Bancalari
Jun 8, 2021·Notfall & Rettungsmedizin·John MadarJonathan P Wyllie

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