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Novel Automated Anaesthesia System Developed
The new system administers drugs for general anesthesia and monitors their separate effects completely automatically, with no manual intervention.
"We have been working on closed-loop systems, where drugs are administered, their effects continuously monitored, and the doses are adjusted accordingly, for the last 5 years," said Dr. Thomas M. Hemmerling of McGill's Department of Anaesthesia and the Montreal General Hospital, who heads ITAG (Intelligent Technology in Anaesthesia research group), a team of anaesthesiologists, biomedical scientists and engineers.
"Think of 'McSleepy' as a sort of humanoid anaesthesiologist that thinks like an anaesthesiologist, analyses biological information and constantly adapts its own behaviour, even recognizing monitoring malfunction," he added.
Researchers performed the technique on a patient who underwent a partial nephrectomy, a procedure that removes a kidney tumour while leaving the non-cancerous part of the kidney intact, over a period of 3 hours and 30 minutes.
To manipulate the various components of general anaesthesia, the automated system measures three separate parameters displayed on a new Integrated monitor of anaesthesia (IMATM): depth of hypnosis via EEG analysis, pain via a new pain score, called AnalgoscoreTM, and muscle relaxation via phonomyographyTM, all developed by ITAG.
Then, the system administers the appropriate drugs using conventional infusion pumps, controlled by a laptop computer on which 'McSleepy' is installed.
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More News on: Dental Anesthesia, Spinal and Epidural Anesthesia, Local Anaesthesia, General Anesthesia, Anaesthesia - History, Anaesthesia - History and Origins, Post operative Complications
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