Anaesthesia and intensive care
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Anaesth Intensive Care · Jun 2005
Biography Historical ArticleVivian Richard Ebsary, A.M. biomedical engineer, inventor, philanthropist.
Vivian Ebsary was an inventor, designer and manufacturer of varied pieces of medical equipment, particularly those involving pumps. These included hypothermia machines and the heart-lung cardiopulmonary bypass machines used in Australian and New Zealand hospitals from the mid 1950s until well into the 1970s. Ebsary also designed and manufactured anaesthetic machines, a hyperbaric unit, scoliosis implant equipment, a chairlift and many other devices for use in the general community. This paper presents an overview of his life's involvement with medicine and medical technology in Australia.
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Anaesth Intensive Care · Jun 2005
ReviewAcute pain management pharmacology for the patient with concurrent renal or hepatic disease.
The clinical utility of most analgesic drugs is altered in the presence of patients with impaired renal or hepatic function not simply because of altered clearance of the parent drug, but also through production and accumulation of toxic or therapeutically active metabolites. Some analgesic agents may also aggravate pre-existing renal and hepatic disease. A search was performed, taking in published articles and pharmaceutical data to determine available evidence for managing acute pain effectively and safely in these two patient groups. ⋯ The agent least subject to alteration in this context is remifentanil; however the drugs' potency has other inherent dangers. Other agents must only be used with caution and close patient monitoring. Amitriptyline, carbamazepine and valproate should be avoided as the risk of fulminant hepatic failure is higher in this population, and methadone is contraindicated in the presence of severe liver disease.
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Anaesth Intensive Care · Jun 2005
Historical ArticleAnaesthesia in Hong Kong and the Faculty of Anaesthetists: 25 years of co-operation.
The development of anaesthetic services in Hong Kong started about five years after the Faculty of Anaesthetists, RACS, was founded. A nucleus of trained anaesthetists there sought assistance from the Faculty to establish adequate training posts and courses of instruction, and hence to provide consultants with an internationally accepted qualification. This paper describes the major features of the early decades of this development.
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Prospective data was collected on 58 patients having neurosurgery in the sitting position in one institution. The incidence of venous air embolism was 43% (25/58), of which the majority were small or moderate in size. ⋯ There was no mortality or serious morbidity. With a proper understanding of the pathophysiology of venous air embolism and the use of sensitive monitoring, anaesthesia for sitting position neurosurgery can be provided safely.
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Anaesth Intensive Care · Jun 2005
Randomized Controlled Trial Comparative Study Clinical TrialComparative study between propofol in a long-chain triglyceride and propofol in a medium/long-chain triglyceride during sedation with target-controlled infusion.
This study was performed to compare the pharmacological characteristics of propofol in an emulsion of both medium- and long-chain triglycerides (MCT/LCT) with those of propofol in an LCT emulsion, by measuring the sedative level and the plasma concentration of propofol during sedation using a target-controlled infusion (TCI) technique. Forty ASA 1 or 2 adult patients who required spinal anaesthesia for surgery were enrolled in this study. The patients were divided into two groups: a propofol LCT group (n = 20) and a propofol MCT/LCT group (n = 20). ⋯ There were no significant differences between the two groups in BIS index or in plasma concentration of propofol at each predicted concentration. Computer-generated TCI of propofol MCT/LCT during sedation is comparable with that of propofol LCT with respect to pharmacokinetics and pharmacodynamics. The formulation of MCT/LCT has a beneficial effect with respect to less pain on injection.