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The modified Valsalva manoeuvre to improve visualization of the hypopharynx during flexible nasopharyngoscopy
1Royal National Throat, Nose and Ear Hospital, London, UK.
The Journal of Laryngology and Otology
|September 1, 1995
Abstract:
A simple, safe and effective procedure for improving the diagnostic accuracy of nasopharyngoscopy is described. It is most useful for the exposure of the hypopharynx, especially in the elderly patient.