Thyromental distance explained

Thyromental distance (TMD) measurement is a method commonly used to predict the difficulty of intubation[1] and is measured from the thyroid notch to the tip of the jaw with the head extended.[2] If it is less than 7.0 cm with hard scarred tissues, it indicates possible difficult intubation.[3]

See also

Notes and References

  1. Baker. PA. Depuydt, A . Thompson, JM . Thyromental distance measurement--fingers don't rule.. Anaesthesia. Aug 2009. 64. 8. 878–82. 10.1111/j.1365-2044.2009.05985.x. 19604192. 33007204 . free.
  2. Web site: Fig.1: Thyromental position. e-SAFE, Royal College of Anaesthetists and The Association of Anaesthetists of Great Britain and Ireland. 2 February 2014.
  3. Web site: Fig.2: Thyromental position. e-SAFE, Royal College of Anaesthetists and The Association of Anaesthetists of Great Britain and Ireland. 2 February 2014.

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