Anaesthesia
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Case Reports
Transient radicular irritation after single subarachnoid injection of isobaric 2% lignocaine for spinal anaesthesia.
Several cases have been reported recently in which symptoms suggestive of transient radicular irritation occurred following the use of hyperbaric 5% lignocaine for spinal anaesthesia. We report on three patients in whom we observed similar symptoms attributable to this kind of radicular irritation following uneventful spinal anaesthesia using isobaric 2% lignocaine. All three patients underwent minor gynaecological procedures and developed burning pains in the buttocks within 24 h of surgery. The long-term outcome was not clear for all the patients, but in at least one the pain disappeared.
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In the early 1940s, Dr M. H. ⋯ The apparatus was essentially a combination of Water's to-and-fro soda-lime canister and Hewitt's ether inhaler. The description of the apparatus is followed by a brief historical note on Dr Armstrong-Davison.
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Case Reports
Respiratory arrest in a parturient following intrathecal injection of sufentanil and bupivacaine.
A 19-year-old obstetric patient had a respiratory arrest shortly after receiving intrathecal sufentanil and bupivacaine as part of a combined epidural/spinal technique for pain relief in labour.
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We have investigated the relationship between changes in the middle latency auditory evoked potentials during alternating periods of consciousness and unconsciousness produced by propofol infusion combined with spinal anaesthesia for total knee replacement. Eleven patients completed the study, of whom two had recollection of events after the onset of the anaesthetic. ⋯ During successive transitions from unconsciousness to consciousness, awake latencies were slightly higher than those of baseline awake, whereas anaesthetised latencies were similar to the ones obtained during the first period of unconsciousness. The consistent changes demonstrated, suggest that the auditory evoked potentials could represent a reliable indicator of potential awareness during anaesthesia.
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A 39-year-old man developed a unilateral recurrent laryngeal nerve palsy following laryngeal mask airway insertion for a day case procedure.