Müller's maneuver


Müller's maneuver

Müller's Manoeuvre

After a forced expiration, an attempt at inspiration is made with closed mouth and nose, whereby the negative pressure in the chest and lungs is made very subatmospheric; the reverse of Valsalva manoeuvre.

This technique is designed to look for collapsed sections of airways such as the trachea and upper airways. In this maneuver, the patient attempts to inhale with his mouth closed and his nostrils plugged, which leads to a collapse of the airway. Introducing a flexible fiberoptic scope into the hypopharynx to obtain a view, the examiner may witness the collapse and identify weakened sections of the airway. Müller's maneuver is used to help determine the cause of sleep apnea. A positive test results means the site of upper airway obstruction is likely below the level of the soft palate, and the patient will probably not benefit from a uvulopalatopharyngoplasty alone. This maneuver is very helpful in doing MRI for sleep apnoea, when sedation to patient can be avoided.

There is some evidence that the sites of obstruction with Muller's manoeuvre do not represent reliably the sites of obstruction during normal sleep. Other factors such as the body's position whilst conducting the manoeuvre may well affect this.


Reference

Textbook of Medical Physiology p784 - Arthur C. Guyton

Sleep apnea and snoring: Surgical and non-surgical therapy. M Friedman, 2009



Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Maneuver — Maneuver, manoeuvre (also spelled manœuvre or manoeuver from the French) may be a synonym for strategy or tactic. It is the manipulation of a situation in order to gain some advantage. Military or naval movement Military exercise Maneuver warfare …   Wikipedia

  • maneuver — A planned movement or procedure. [Fr. manoeuvre, fr. L. manu operari, to work by hand] Adson m. SYN: Adson test. Barlow m. test for hip instability, with dislocation occurring with flexion …   Medical dictionary

  • Müller — Friedrich von, German physician, 1858–1941. See M. sign. Heinrich, German anatomist, 1820–1864. See M. radial cells, under cell, M. fibers, under fiber, M. muscle, M. trigone. Hermann F., German histologist, 1866–1898. See formol M. fixative, M.… …   Medical dictionary

  • Mariner 2 — Operator NASA Major contractors Jet Propulsion Laboratory Mission type Flyby …   Wikipedia

  • Triangulation (chess) — Triangulation is a tactic used in chess to put one s opponent in zugzwang. That is, it gets to the same position with the other player to move, when it is a disadvantage for that player to move, e.g. he has to give up a blockade and let the other …   Wikipedia

  • Réti endgame study — The Réti endgame study is a chess endgame study by Richard Réti. It was published in 1921 in Kagan s Neueste Schachnachrichten . It demonstrates how a king can make multiple threats and how it can take more than one path to a given location,… …   Wikipedia

  • Corresponding squares — Corresponding s …   Wikipedia

  • international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …   Universalium

  • Mariner 4 — Operator NASA Mission type Flyby Flyby of Mars …   Wikipedia

  • Heart murmur — For the French motion picture, see Murmur of the Heart. Cardiac murmurs and other cardiac sounds Auscultogram from normal and abnormal heart sounds ICD 10 …   Wikipedia