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Dr Stephen Wetmore and coworkers at the University of Arkansas (Little Rock) reported that changes in auditory brain-stem responses (ABR) occur after successful surgery for sleep apnea. Their report at the meeting of the Southern Section of the Triological Society investigated changes in the latency of ABR responses in controls and in patients with sleep apnea before and after surgery. There was no statistically significant difference between control patients and patients with preoperative sleep apnea. However, the patients with sleep apnea who achieved good control of their sleep apnea after undergoing uvulopalatopharyngoplasty of tracheostomy had a shortening of wave III and I to III interval latencies. Patients not achieving good control did not have a decrease in ABR response latencies. They conclude that ABR has no role in the preoperative evaluation of patients with sleep apnea, but their results do suggest improvement in brain-stem function after successful management of sleep
MATTOX DE. Auditory Brain-stem Responses in Obstructive Sleep Apnea. Arch Otolaryngol Head Neck Surg. 1988;114(6):609. doi:10.1001/archotol.1988.01860180023002
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