The Origins of the Sniffing Position and the Three Axes Alignment Theory for Direct Laryngoscopy

Author:

Greenland K. B.1,Eley V.1,Edwards M. J.1,Allen P.1,Irwin M. G.1

Affiliation:

1. Department of Anaesthesia and Perioperative Medicine, Royal Brisbane and Royal Women s Hospital, Brisbane, Queensland, Australia

Abstract

The Three Axes Alignment Theory and the sniffing position for direct laryngoscopy are the anatomical basis for direct laryngoscopy. This position has been one of the hallmarks of airway management and yet its development is based on a small number of descriptive texts published between 1852 and 1944. This paper explores the origins of direct laryngoscopy and how the sniffing position came to be described. The seemingly incongruent techniques of the rigid bronchoscopist and direct laryngoscopist are discussed from an historical perspective.

Publisher

SAGE Publications

Subject

Anesthesiology and Pain Medicine,Critical Care and Intensive Care Medicine

Reference16 articles.

1. GarciaM. Observations on the human voice. Pro Roy Soc, London 1855; 7:397–410.

2. KirsteinA. Autoscopy of the larynx and trachea (direct examination without mirror). Philadelphia: The FA Davis Co., 1897.

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