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Antonija Posted 17 years ago
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Passive opening of the sinus entrances and Eustachian tube is the ideal way to equalize pressure between nasopharynx and sinuses and middle ear. It is not always possible, especially during descent. Divers usually use an active technique which will inflate air in middle ear and sinuses when passive aeration is not possible. Modified Valsalva maneuver is the easiest to perform. It involves occluding the nostrils, closing the mouth and exhaling. Experienced divers also use Toynbee manoeuvre which involves swallowing with the mouth and nose closed or combination of both.
Passive opening of the sinus entrances and Eustachian tube is the ideal way to equalize pressure between nasopharynx and sinuses and middle ear. It is not always possible, especially during descent. Divers usually use an active technique which will inflate air in middle ear and sinuses when passive aeration is not possible. Modified Valsalva maneuver is the easiest to perform. It involves occluding the nostrils, closing the mouth and exhaling. Experienced divers also use Toynbee manoeuvre which involves swallowing with the mouth and nose closed or combination of both.
Top answer
Passive opening of the sinus entrances and Eustachian tube is the ideal way to equalize pressure between nasopharynx , sinuses and middle ear , but it is not always possible, especially during descent. Divers usually use an active technique which inflates the middle ear and sinuses with air when passive aeration is not possible. A modified valve maneuver is the easiest to perform.
- Passive opening of the sinus entrances and Eustachian tube is the ideal way to equalize pressure between nasopharynx , sinuses and middle ear , but it is not always possible, especially during descent.
- Divers usually use an active technique which inflates the middle ear and sinuses with air when passive aeration is not possible.
- A modified valve maneuver is the easiest to perform.
- It involves occluding the nostrils, closing the mouth and exhaling.
- Experienced divers also use either the Toynbee maneuver, which involves swallowing with the mouth and nose closed , or a combination of both maneuvers.
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Passive opening of the sinus entrances and Eustachian tube is the ideal way to equalize pressure between nasopharynx, sinuses and middle ear, but it is not always possible, especially during descent. Divers usually use an active technique which inflates the middle ear and sinuses with air when passive aeration is not possible. A modified valve maneuver is the easiest t
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