Auditory Brainstem Response Differences in Diabetic and Non-diabetic Veterans

2007 ◽  
Vol 18 (10) ◽  
pp. 863-871 ◽  
Author(s):  
Nancy Vaughan ◽  
Kenneth James ◽  
Daniel McDermott ◽  
Susan Griest ◽  
Stephen Fausti

A number of studies have found statistically significant delays in auditory brainstem latencies of patients with diabetes compared with non-diabetic controls. However, the mechanisms ascribed as responsible for the latency differences between diabetic and non-diabetic patients vary among studies, and the latency differences, while significant, are small. In this 5-year prospective study, auditory brainstem response testing was conducted with 416 non-diabetic and 375 diabetic veterans from the Portland Veterans Affairs Medical Center as part of a larger study. Patients with diabetes had significantly delayed latencies of Wave III and V in the right ear and significantly prolonged interpeak I-III and I-V latencies in both ears. Stimulus polarity difference yielded slightly different results. None of the diabetes-related clinical characteristics were associated with the latency differences between the subject groups after accounting for hearing loss and age. Effect size was calculated and clinical significance of these differences is discussed. Un número de estudios han encontrado retardos estadísticamente significativos en las latencias auditivas del tallo cerebral en pacientes diabéticos comparados con controles no diabéticos. Sin embargo, los mecanismos atribuidos como responsables de las diferencias en las latencias entre pacientes diabéticos y no diabéticos varían entre estudios, y las diferencias en las latencias, aunque significativas, fueron pequeñas. En este estudio prospectivo a 5 años, se condujeron las pruebas de respuestas auditivas del tallo cerebral en 416 veteranos no diabéticos y 375 diabéticos, del Centro Médico de Asuntos de Veteranos de Portland, como parte de un estudio mayor. Los pacientes con diabetes tuvieron latencias significativamente retardadas para las ondas III y V en el oído derecho, y latencias inter-pico I-III y I-V significativamente retardadas en ambos oídos. Diferencias en la polaridad del estímulo rindieron resultados levemente diferentes. Ninguna de las características clínicas relacionadas con la diabetes se asoció con las diferencias en las latencias entre los grupos de sujetos, luego de considerar la pérdida auditiva y la edad. Se calculó el efecto del tamaño y se discutió el significado clínico de estas diferencias.

2020 ◽  
Vol 131 ◽  
pp. 109861 ◽  
Author(s):  
David B. Behrman ◽  
Jessica L. Bishop ◽  
Jeremy Godsell ◽  
Brian Shirley ◽  
Sarah Storey ◽  
...  

2003 ◽  
Vol 14 (10) ◽  
pp. 556-562 ◽  
Author(s):  
Susan A. Small ◽  
David R. Stapells

Behavioral thresholds were measured from 31 adults with normal hearing for 500, 1000, 2000, and 4000 Hz brief tones presented using a B-71 bone oscillator. Three occlusion conditions were assessed: ears unoccluded, one ear occluded, and both ears occluded. Mean threshold force levels were 67, 54, 49, and 41 dB re:1μN peak-to-peak equivalent in the unoccluded condition for 500, 1000, 2000, and 4000 Hz, respectively (corrected for air-conduction pure-tone thresholds). A significant occlusion effect was observed for 500 and 1000 Hz stimuli. These thresholds may be used as the 0 dB nHL (normalhearing level) for brief-tone bone-conduction stimuli for auditory brainstem response testing.


2021 ◽  
Vol 37 (1) ◽  
Author(s):  
Diala Hussein ◽  
Büşra Altın ◽  
Münir Demir Bajin

Abstract Background H syndrome is an autosomal recessive disorder caused by mutations in SLC29A3. Hyperpigmentation, hypertrichosis, hyperglycemia, and hearing loss are some characteristics of this disorder, and it has a prevalence of < 1/1000. The aim of this report is to spread awareness among otologists, audiologists, and pediatricians about this syndrome and its audiological features. Case presentation An 8-year-old male with a diagnosed H syndrome registered to our clinic with a complaint of hearing loss. The patient was diagnosed with hearing loss in a different clinic using only the air-conducted click auditory brainstem response test which showed wave V at 60 dB nHL for the right ear and at 80 dB nHL for the left ear. The initially performed pure tone audiometry (PTA) test in our clinic revealed a bilateral asymmetric hearing loss with a moderate sensorineural hearing loss in the right ear and a profound mixed hearing loss in the left ear. The performed air conducted click auditory brainstem response (ABR) result showed wave V at 55 dB nHL for the right ear and at 70 dB nHL for the left ear. Then, the repeated PTA test revealed a mild-severe sensorineural sloping hearing loss in the right ear and a severe sensorineural hearing loss in the left ear. Conclusion Although hearing thresholds in H syndrome could be within normal limits in some patients, sensorineural hearing loss is an important characteristic feature for this syndrome. Sensorineural hearing loss could be progressive or of sudden onset and ranges from mild to profound. Thus, it must be taken into consideration to apply the audiological follow-up regularly and paying attention to the patient’s complaints; also, a regular follow-up for language development of children with H syndrome and for the hearing aids is advised.


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