Anaesthesia and intensive care
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Anaesth Intensive Care · Jun 2007
The diagnostic yield and clinical impact of a chest X-ray after percutaneous dilatational tracheostomy: a prospective cohort study.
A chest X-ray (CXR) is routinely performed after percutaneous dilatational tracheostomy (PDT). The purpose of this study was to evaluate the diagnostic yield of routine CXR following PDT and its impact on patient management and to identify predictors of post-PDT CXR changes. Two-hundred-and-thirty-nine patients who underwent PDT in a 21-bed intensive care unit were included prospectively in the study. ⋯ Routine CXR following PDT has a low diagnostic yield, detecting mainly atelectasis and leading to a change in the management in only a minority ofpatients. Routine CXR after apparently uncomplicated PDT performed by an experienced operator may not be necessary and selective use may improve its diagnostic yield. Further studies are required to validate the safety of selective versus routine post-PDT CXR.
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Anaesth Intensive Care · Jun 2007
Case ReportsThe use of activated protein C in severe Plasmodium falciparum malaria.
A 56-year-old man presented to a peripheral hospital in New Zealand with severe Plasmodium falciparum malaria with cerebral involvement and subsequently developed multi-system organ failure. Activated protein C was used in an attempt to stop the cascade of events into multi-organ failure. Severe infection with P. falciparum is life-threatening and appears to activate a hypercoagulable state similar to that of severe sepsis. Activated protein C is currently used in the treatment of severe sepsis and may provide a new adjuvant therapy for severe P. falciparum malaria.
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Anaesth Intensive Care · Jun 2007
Historical ArticleThe history of anaesthetic mortality reporting.
Anaesthetists are acutely aware of the legal constraint of reporting to the coroner deaths in association with anaesthesia. The evolution of the office of the coroner in England is presented and the relationship with the discovery and evolution of anaesthesia is examined. The legal and medical climate in the 19th century is described, with some of the key participants named and their roles explained. ⋯ The collaboration of the various state mortality committees in producing a triennial national report is an important way to ensure that the lessons of the past are kept in mind in the present. The author believes that mortality reporting, the analysis of data and the dissemination of information is a valuable field of research, monitoring and educational tool. Primum non nocere is particularly pertinent in anaesthesia.
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Anaesth Intensive Care · Jun 2007
High thoracic epidural analgesia for cardiac surgery: an audit of 874 cases.
Despite clinical use for over 10 years, high thoracic epidural analgesia for cardiac surgery remains controversial, due to a perceived increased risk of epidural haematoma resulting from anticoagulation for cardiac pulmonary bypass. There are no sufficiently large randomised studies to address this question and few large case series reported. ⋯ There were no neurological complications attributable to epidural use. Our findings suggest that major neurological complications related to high thoracic epidural use during cardiac surgery are rare.
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Morphine is administered intrathecally alone or in combination with other drugs to provide spinal analgesia. Dose-finding studies have recommended 100 microg be used intrathecally to optimise analgesia and minimise side-effects for caesarean section and hip replacement surgery. Dilute solutions of morphine are generally not available, mandating preparation from a 10 mg/ml ampoule. ⋯ A single-step dilution technique using 0.1 ml of a solution diluted to 1.0 mg/ml was more accurate than when a double-dilution technique was used (P = 0.047). Given that dose-finding studies suggest that analgesia and side-effects vary at the dose range found in this study, we advocate the use of prediluted solutions. If dilution is to be performed a single-step dilution technique should be used.