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تعداد آیتم قابل مشاهده باقیمانده : 3 مورد
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Middle ear pressure equalization maneuvers

Middle ear pressure equalization maneuvers
Maneuver Description Comment
Simple techniques Yawn, swallow, jaw thrust, head tilt Useful in patients with widely patent Eustachian tubes, but usually ineffective with marginally patent Eustachian tubes
Frenzel maneuver Diver pinches the nostrils, closes the glottis, and makes a "k" or "guh" sound to compress air in the back of the throat Can be performed at any point in the respiratory cycle and can be quickly repeated.
Valsalva maneuver Diver pinches the nostrils, tightens cheek muscle and exhales forcefully Prolonged efforts can reduce systemic venous return and cause hypotension
Toynbee maneuver Diver pinches the nostrils while swallowing Limited effectiveness during rapid descent
Beance tubaire voluntaire maneuver Diver contracts the muscles of the soft palate while using the muscles of the upper throat to open the Eustachian tubes Difficult to teach and not easily mastered
Roydhouse maneuver Diver contracts the muscles of the soft palate while tensing the tongue to open the Eustachian tubes Difficult to teach and not easily mastered; concomitant jaw thrust may be helpful
Edmonds technique Combination of pressurization from the Frenzel or Valsalva maneuver with a jaw thrust or head tilt  
Lowry technique Diver pinches the nostrils, builds up pressure with a Frenzel or Valsalva maneuver, and simultaneously swallows Requires coordination and practice but is very effective
Twitch maneuver Diver builds up pressure with a Frenzel or Valsalva maneuver, then suddenly twitches the head sideways Throat muscle tension increases effectiveness of the technique
Ear_pressurization_techniqu.htm
Adapted from Kay, E, Undersea J 2000; 4:30.
Graphic 61166 Version 1.0

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