Simultaneous triple semicircular canal plugging and cochlear implantation in advanced Meniere's disease / 中华耳鼻咽喉头颈外科杂志

Objective@#To evaluate the feasibility of combining simultaneous triple semicircular canal plugging (TSCP) and cochlear implantation (CI) to treat vertigo and hearing loss in advanced Meniere's disease(MD) patients, so as to provide an alternative surgical procedure for treating this disorder.@*Methods@#Data from seven patients, who were referred to our hospital and diagnosed with unilateral MD strictly meeting the criteria issued by Chinese Academy of Otolaryngology-Head and Neck Surgery Committee (2006), from Jan. 2015 to Jan. 2016, were retrospectively analyzed in this work. Seven patients, in whom the standardized conservative treatment had been given for at least one year and frequent vertigo still occurred, underwent simultaneous TSCP and CI under general anesthesia via mastoid approach. Postoperative follow-up time was more than six months. Vertigo control and auditory function were measured. Pure tone audiometry, speech perception scores, caloric test, head impulse test (HIT), and vestibular evoked myogenic potential (VEMP) were performed for evaluation of audiological and vestibular functions.@*Results@#All patients had bilateral severe sensorineural hearing loss preoperatively. One side hearing loss was due to MD and another side was due to reasons including sudden sensorineural hearing loss, mumps and other unknown reason. The total control rate of vertigo in seven MD patients was 100.0% in the six-month follow-up, with complete control rate of 85.7% (6/7) and substantial control rate of 14.3% (1/7). Improved hearing threshold and speech perception scores were observed in all study participants. Postoperative average aided hearing threshold was 32.5 dBHL, the average monosyllabic word score was 42.6% and speech perception scores of sentences tested in quiet was 52.3%. Tinnitus improved in five cases, and no significant change in two patients. Post-operatively, all patients suffered from temporary vertigo and balance disorders. Vertigo was disappeared in all patients within 3-5 days, while, an average recovery time of balance disorders was 19.7 days. Six months after treatment, loss of semicircular canal function by caloric test was found in the operation side of all patients and no change in cVEMP or oVEMP test was noted. All patients had no facial paralysis, cerebrospinal fluid leakage, and other complications.@*Conclusions@#A combined approach of TSCP and CI which could control vertigo effectively and improve hearing loss and tinnitus represents an effective and safe therapy for some advanced MD patients.

Correlations between the pathogenesis and prognosis of sudden sensorineural hearing loss and blood lipid / 中华耳鼻咽喉头颈外科杂志

<p><b>OBJECTIVE</b>We aimed to determine whether blood lipid parameters were related to the severity and the prognosis of idiopathic sudden sensorineural hearing loss (ISSNHL) patients.</p><p><b>METHODS</b>A retrospective cohort study of 258 patients with ISSNHL from December 2013 to February 2015. The distribution characteristics of lipids [total cholesterol (TC), triglyceride (TG), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), Non-high-density lipoprotein cholesterol (Non-HDL-C), et al] in different degree of deafness (mild, moderate, severe, and profound), hearing curve types (low frequency, high frequency, full range frequency, and completely deafness type) and prognosis of recovery (complete, partial, slight, and no recovery) were analyzed by IBM SPSS 22.0 ANOVA analysis, chi square test and multiple regression analysis.</p><p><b>RESULTS</b>TG level in mild hearing loss group was significantly lower than that in severe and profound hearing loss group (P = 0.017 and P = 0.007). There were no correlation between curve types and lipid indexes (P > 0.05). Non-HDL-C level was elevated in no recovery and slight recovery groups (P = 0.026 and 0.021). TC levels in partial recovery group and no recovery group were significantly higher than that in the complete recovery group (P = 0.049 and 0.042), TG was higher in slight recovery group (P = 0.014).</p><p><b>CONCLUSIONS</b>TG has significant correlation with the severity of hearing loss. There are negative correlations between hearing recovery and Non-HDL-C, TC and TG levels. Non-HDL-C, TC and TG might be a prognostic factor for treatment outcome in ISSNHL patients.</p>

Efficacy of endolymphatic sac-mastoid shunt surgery for intractable Meniere's disease / 中华耳鼻咽喉头颈外科杂志

<p><b>OBJECTIVE</b>To investigate the effect and mechanism of endolymphatic sac-mastoid shunt surgery for intractable Meniere's disease of different stages according to hearing level.</p><p><b>METHODS</b>Data from 240 patients diagnosed with unilateral MD strictly meeting the criteria issued by Chinese Academy of Otolaryngology-Head and Neck Surgery Committee (2006) from January 1983 to January 2012 were analyzed in this study. Endolymphatic sac-mastoid shunt surgery was performed in affected ear for each patient. The evaluation of therapy followed the guidelines issued by Chinese Academy of Otolaryngology Head and Neck Surgery Committe. Vertigo control and auditory function were measured in two-year's follow-up.</p><p><b>RESULTS</b>According to the preoperative staging of hearing, among these 240 patients, there were 12 cases in stage I (with an average hearing threshold < 25 dB), 130 cases in stage II (with an average hearing threshold of 25-40 dB), 85 in stage III (41-70 dB) and 13 cases in stage IV(with an average hearing threshold > 70 dB). Overall control rate of vertigo was 77.9% (187/240) in two-year's follow-up, with total control 49.2% (118/240) and substantial control 28.7% (69/240). The hearing was improved in 25.0% (60/240) of cases, no change in 59.2% (142/240) of cases, and worse in 15.8% (38/240) of cases. According to different stages, vertigo control rate was 83.3% (10/12) in stage I, 82.3% (107/130) in stage II, 75.3% (64/85) in stage III and 46.2% (6/13) in stage IV. Vertigo control rate of stage IV patients was significantly lower than that of stage II and III patients (χ(2) = 9.318 and 4.692, P < 0.05), while vertigo control rate of stage I, II, III patients had no significant difference with each other (P > 0.05).</p><p><b>CONCLUSION</b>Endolymphatic sac-mastoid shunt operation is an effective method in the treatment of intractable Meniere's disease, but the effect was poor in stage IV patients.</p>