Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
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Τρίτη 27 Ιουλίου 2021

A preliminary study on the negative wave mismatch in patients with unilateral total sudden deafness

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Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2021 May;35(5):391-394. doi: 10.13201/j.issn.2096-7993.2021.05.002.

ABSTRACT

Objective:To observe the characteristics of different negativity negativity (MMN) in patients with unilateral sudden deafness, and compare them with normal MMN, in order to provide theoretical reference for discussing the pathogenesis of unilateral sudden deafness and their relationship with the auditory centers, and to provide theoretical basis for the treatment of sudden deafness in the future. Methods:Twenty-six cases of unilateral total sudden deafness were recruited as experimental group, 25 cases of normal healthy people as control group, the MMN inspections was performed respectively, the two groups using classical mode of oddball, standard and deviation stimulate with 1000 Hz and 2000 Hz short pure tone test MMN respectively, to observe the MMN latency and amplitude characteristics, and compare the latent period and amplitude difference between the two groups. Results:Among the 51 subjects, only 1 patient with unilateral total sudden deafness did not elicit MMN waveform, while the rest were all induced. The average incubation period of MMN in the experimental group was (162.03±38.64) ms, the average amplitude was (2.83±1.14)μV, and the mean age was (48.64±10.27) y. While the average incubation period of MMN in the control group was (197.52±27.43) ms, the average amplitude was (2.58±1.07)μV, and the mean age was (45.00±8.20) y. The MMN latency was significantly different between the two groups (P<0.01). There was no statistical difference in amplitude between the two groups (P>0.05). There was no statistical difference in age between the two groups (P>0.05). Conclusion:The latency period of MMN of unilateral total sudden deafness is shorter than that of the control group. It suggests th at the auditory center function of patients with acute sudden deafness has changed, and we speculate that the auditory center of patients with acute sudden deafness may have corresponding emergency changes, so as to make its function have adaptive changes, which will provide further reference for the discussion of the pathophysiological mechanism and treatment of sudden deafness in the future.We speculated that acute unilateral auditory deprivation caused by unilateral total deafness sudden deafness has an impact on cerebral cortical auditory function, which provides further reference for the discussion of pathophysiological mechanism and treatment plan of sudden deafness in the future.

PMID:34304460 | DOI:10.13201/j.issn.2096-7993.2021.05.002

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