Canadian Anaesthetists' Society journal
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A proximal positive end-expiratory pressure (PEEP) and continuous positive airway pressure (CPAP) system was constructed by the simple addition of a venturi T-piece proximal to the exhalation limb of a breathing circuit. The level of PEEP or CPAP was determined by the amount of flow powering the venturi. This system can provide positive pressure in excess of 40 cm H2O without the need for check valves, dump valves or additional nebuliers and flowmeters.
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Case Reports
Successful use of dantrolene sodium in human malignant hyperthermia syndrome: a case report.
We present a case of malignant hyperthermia in which successful management included the intravenous use of dantrolene sodium. A subsequent operation under spinal anaesthesia with oral dantrolene prophylaxis did not lead to development of malignant hyperthermia. Since this syndrome is rare during regional anaesthesia, the role of prophylactic oral dantrolene in preventing the redevelopment of malignant hyperthermia in our patient is open to question.
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A case is reported in which the foetal heart was monitored by a Doppler apparatus during and after an operation on the kidney in a patient who was 27 weeks pregnant. This monitoring proved useful in detecting alterations of foetal heart rate which occurred during positioning of the patient.
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The early history of anaesthesia in Newfoundland is described by reference to newspapers and other writings of the time. News of ether first reached Newfoundland in February 1847 with a report from England of Robert Liston's amputation of a leg on December 21, 1846. Ether was first used in St. ⋯ John's a few days before May 4, 1848 by Samuel Carson in an obstetrical case, and on May 10, 1848 it was used during the amputation of a leg by Edward Keilley. Also discussed are some other items of anaesthetic interest which occurred during the years following until the appointment of the first (albeit part-time) anaesthetist in St. John's in 1912.