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The establishment of an anaesthetist-managed intraoperative neurophysiological monitoring service and initial outcome data

Royal North Shore Hospital and North Shore Private Hospitals, Sydney, New South Wales


Neurophysiological monitoring has been recommended to reduce the risk of neurological damage during a wide variety of surgeries. While the concept of an anaesthesia-led intraoperative neurophysiological monitoring (IONM) service is not new, the quality of this service provision has not been studied. In this article, we present our experience with the establishment of this service, and the results of our audit of 302 cases monitored over the initial four years. Our results identified that an anaesthesia-led IONM service was able to achieve a reliable signal in 95.4% of cases and capture significant alerts in 15.6% of these cases with sensitivity, specificity, false positive and negative rates consistent with published data. Our results indicate an anaesthesia-led IONM service is effective in identifying patients at an increased risk of an adverse outcome.

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