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1.
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery ; (12): 924-926, 2023.
Artigo em Chinês | WPRIM | ID: wpr-996642

RESUMO

@#Thymoma complicated with polymyositis and myasthenia gravis is a rare case, which can be clearly diagnosed and given symptomatic treatment according to its own diagnostic criteria, imaging and laboratory examinations. This paper reports the clinical data of a thymoma patient with polymyositis and myasthenia gravis admitted to the Seventh Affiliated Hospital of Sun Yat-Sen University, and discusses the possible pathogenesis and treatment methods.

2.
Journal of Clinical Otorhinolaryngology Head and Neck Surgery ; (24): 1243-1247, 2015.
Artigo em Chinês | WPRIM | ID: wpr-749200

RESUMO

OBJECTIVE@#To investigate the characteristics of air-conducted ocular vestibular-evoked myogenic potential(oVEMP) in patients with sudden sensorineural hearing loss (SSHL). So as to understanding the range and the degree of the vestibular system damage in patients with SSHL.@*METHOD@#Thirty-five cases of unilateral SSHL were enrolled as the observing group from December in 2013 to December in 2014. 500 Hz air-conducted tone burst was employed as stimulation. Fifity-five healthy young subjects were recruited as the control group. The results were compared between the affected ears, the contralateral ears and the normal controls.@*RESULT@#Thirty-five patients with SSHL, 31 of them in both ears lead to oVEMP Waveform, 4 sick ears did not elicit oVEMP waveform, extraction rate of 88%. 95 dBHL air-conducted get the latencies of P1 and N1, P1-N1 interval, peak-to-peak P1-N1 amplitude in healthy ear were (11.92 ± 0.85)ms; (17.07 ± 1.04)ms, (5.15 ± 0.69)ms, (5.44 ± 2.53) µv. 95 dBHL air-conducted get the latencies of P1 and N1, P1-N1 interval, peak-to-peak P1-N1 amplitude in sick ear were (12.16 ± 0.76) ms; (16.94 ± 2.57)ms, (5.16 ± 0.73)ms, (2.89 ± 1.66) v. The 55 cases (110 ears) were elicited P1-N1 complex typical, extraction rate was 100%. The threshold of oVEMP examination was (82.23 ± 2.92) dBHL, 95 dBHL air-conducted get the latencies of P1 and N1, P1-N1 interval, peak-to-peak P1-N1 amplitude in these healthy young people were (11.53 ± 0.80)ms, (16.61 ± 0.87) ms, (5.18 ± 1.04) ms, (5.96 ± 2.59) µv, there were no significant differences between the affected ears, the contralateral ears and the normal controls in the latencies P1 and N1, P1-N1 interval. The wave amplitude in SSHL were lower than the healthy ear and the healthy control group.@*CONCLUSION@#Through the detection of oVEMP in patients with SSHL,we observed that P1-N1 wave amplitude decreased, and it may be related to the damage of the utricle and vestibular nerve.


Assuntos
Humanos , Estudos de Casos e Controles , Perda Auditiva Neurossensorial , Sáculo e Utrículo , Patologia , Potenciais Evocados Miogênicos Vestibulares , Nervo Vestibular , Patologia , Vestíbulo do Labirinto
3.
Journal of Clinical Otorhinolaryngology Head and Neck Surgery ; (24): 1495-1498, 2014.
Artigo em Chinês | WPRIM | ID: wpr-748963

RESUMO

OBJECTIVE@#To investigate the characteristics of air-conducted ocular vestibular-evoked myogenic potential (oVEMP) in healthy young people , so as to establish the normative data of young people.@*METHOD@#Fifty-five healthy young subjects were recruited as study participants, 500 Hz air-conducted tone burst was used as stimulation. The threshold of oVEMP in each ear was examined. The latencies of P1 and N1, P1-N1 interval, peak-to-peak of P1-N1 amplitude and asymmetry ratio were measured. Effects of gender on oVEMPs were also exam- ined.@*RESULT@#The typical complex wave of N1 and P1 was observed in all subjects. The threshold of oVEMP examination was(82.23 ± 12.92) dBHL, 95 dBHL air-conducted get the latencies of P1 and N1, P1-N1 interval,peak-to-peak P1-N1 amplitude in these healthy young people were(11.53 ± 0.80)ms, (16.61 ± 0.87)ms, (5.18 ± 11.04)ms, (5.96 ± 2.59)μv, respectively. The peak-to-peak P1-N1 amplitude of male was (6.49 ± 2.67) μv ,the female was (5.21 ± 2.34) μv, there were significant differences between male and female subjects in the wave amplitude (P < 0.05).@*CONCLUSION@#Air-conduction induced oVEMP is a new method for vestibular function test. The amplitude of the oVEMP wave was different between male and female. Therefore it is necessary to establish the normal value according to genders.


Assuntos
Feminino , Humanos , Masculino , Adulto Jovem , Estimulação Acústica , Olho , Cabeça , Valores de Referência , Potenciais Evocados Miogênicos Vestibulares , Testes de Função Vestibular , Vestíbulo do Labirinto
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