METHOD FOR DIAGNOSING SECONDARY SENSORINEURAL HEARING LOSS DUE TO A LOWER PERILYMPHATIC LABYRINTH PRESSURE Russian patent published in 2018 - IPC A61B5/00 A61B5/12 

FIELD: medicine.

SUBSTANCE: invention relates to medicine and can be used to diagnose secondary sensorineural hearing loss due to the reduced perilymphatic pressure of the labyrinth. Conduct audiometric control of the acuity of the patient's hearing when sitting in a soundproofed room. Determine initial thresholds for the sound perception of the patient by air conduction throughout the tone scale. Then the patient maximum tightly presses head to the sternum and holds the head in this position for 55–65 seconds. Immediately against this background, the patient determines the presence or absence of a change in his sound perception thresholds by air conduction throughout the tone scale at different frequencies of sound. Further patient additionally in the prone position continuously performs within 60–65 seconds a deep breath-exhalation with a respiratory rate of 20–22 per minute. After stabilization of low intracranial pressure for 60–65 seconds, the patient's presence or absence of change in the sound perception thresholds for air conduction across the entire tone scale at different sound frequencies at a step of 5 dB. If a fact of lowering the thresholds of sound perception by air conduction of the patient by 10 dB or more is found on at least two different frequencies of sounding with increasing liquor pressure, as well as simultaneous detection of an increase in the sound perception thresholds for air conduction of the patient by 10 dB and more at not less than two different frequencies of sounding with a decrease in intracranial pressure, the patient is diagnosed with a secondary sensorineural hearing loss due to a lower perilymphatic pressure of the labyrinth.

EFFECT: method allows to diagnose, with a high degree of reliability, secondary sensorineural hearing loss due to a lower perilymphatic labyrinth pressure by determining the change in its sound perception thresholds by air conduction throughout the tone scale at different frequencies of sound when the patient performs the maximum tightening of the head to the sternum and its retention and the patient's deep breaths-exhalations.

1 cl, 3 ex