J Otolaryngol Head N
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J Otolaryngol Head N · Aug 2008
The Sunnybrook experience: review of deep vein thrombosis and pulmonary embolism in otolaryngology.
To determine the incidence of venous thromboembolism in otolaryngology patients at a Canadian tertiary care hospital. ⋯ Venous thromboembolism is an infrequent but potentially devastating cause of morbidity and mortality in the otolaryngology patient population.
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J Otolaryngol Head N · Aug 2008
Effect of increasing duration of stimulation on the electrically evoked auditory brainstem and middle latency responses in pediatric cochlear implant users.
Electrophysiologic responses used to predict behavioural stimulation levels in implant users are typically evoked with a single-pulse stimulus versus higher-rate pulse trains of longer duration. Unfortunately, electrophysiologic measures tend to overestimate behavioural responses. It may be possible to improve the predictive ability of evoked potential thresholds by increasing the duration of the stimulus. We asked if auditory brainstem and middle latency responses can be reliably measured using electrical pulse trains of increasing duration. ⋯ EABRs are dominated by the stimulus offset, whereas EMLRs appear to be dominated by stimulus onset. Clear, unchanging EABRs and EMLRs indicated that electrophysiologic measures were a valid tool for increasing durations.