Research Article

Low-Frequency Sound Pressure and Transtympanic Endoscopy of the Middle Ear in Assessment of “Spontaneous” Perilymphatic Fistula

Figure 1

Effect of low frequency sound on postural stability in normal controls, patients with Meniere’s disease, patients with vestibulopathy of unknown etiology, and in patients with cochleopathy of unknown etiology. Means and standard error of the means are given for the stimulation frequencies of 25, 50 and 63 Hz at a sound pressure level of 130, 132 and 135 dB, respectively.
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