Anaesthesia and intensive care
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Anaesth Intensive Care · Apr 2024
Trainee anaesthetist self-assessment using an entrustment scale in workplace-based assessment.
The role of self-assessment in workplace-based assessment remains contested. However, anaesthesia trainees need to learn to judge the quality of their own work. Entrustment scales have facilitated a shared understanding of performance standards among supervisors by aligning assessment ratings with everyday clinical supervisory decisions. ⋯ Possible explanations of divergent ratings included one party being unaware of a vital aspect of the performance and different interpretations of the prospective nature of the scale. The substantial concordance between trainee and supervisor ratings supports the contention that the entrustment scale helped produce a shared understanding of the desired performance standard. Discussion between trainees and supervisors on the reasoning underlying their respective judgements would provide further opportunities to enhance this shared understanding.
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Anaesth Intensive Care · Apr 2024
Basophil activation test in the diagnostic workup of perioperative anaphylaxis due to neuromuscular blocking agents: A case series and implications for practice.
In Australia, neuromuscular blocking agents are the leading cause of perioperative anaphylaxis. Current investigation of suspected anaphylaxis includes tryptase levels, serum immunoglobulin E (IgE) levels, and skin testing, including intradermal testing and skin prick testing. The gold standard for the diagnosis of a hypersensitivity reaction is a challenge test, but this poses a risk to patient safety. ⋯ This acts as a surrogate marker for mast cell and basophil activation, thereby identifying IgE-mediated allergy. It is most commonly used to supplement equivocal findings from initial in vitro testing to assist in confirming the diagnosis of a hypersensitivity reaction and identify the causative agent. We present a case series in which five patients with suspected anaphylaxis underwent a BAT, demonstrating its role and limitations in allergy testing within Australia.
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Anaesth Intensive Care · Apr 2024
Intraoperative methadone for day-case gynaecological laparoscopy: A double-blind, randomised controlled trial.
Optimal pain relief in day-case surgery is imperative to patient comfort and timely discharge from hospital. Short-acting opioids are commonly used for analgesia in modern anaesthesia, allowing rapid recovery after surgery. Plasma concentration fluctuations from repeated dosing of short-acting opioids can cause patients to oscillate between analgesia with potential adverse effects, and inadequate analgesia requiring rescue dosing. ⋯ No significant differences between the methadone and short-acting groups in other outcomes were identified: respiratory depression 41.2% versus 31.4%, Padjusted >0.99; postoperative nausea and vomiting 29.4% versus 42.9%, Padjusted >0.99; overnight admission 17.7% versus 11.4%, Padjusted >0.99; excess sedation 8.82% versus 8.57%, Padjusted >0.99. This study provides evidence that, although modestly, methadone can reduce post-anaesthesia care unit opioid consumption and postoperative pain scores after day-case gynaecological laparoscopy. There were no significant differences in any secondary outcomes.
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Anaesth Intensive Care · Apr 2024
The influence of needleless connectors and inserted catheters on flow rates through vascular introducer sheaths.
SummaryA vascular introducer sheath is often used for rapid volume replacement. However, common manipulations such as the addition of needleless connectors to infusion ports and the insertion of catheters or other devices through the introducer sheath may impede flow. In this study we utilised a rapid infuser to deliver room-temperature normal saline through two introducer sheath configurations with and without the addition of needleless connectors and the placement of catheters through the introducer sheaths. ⋯ These findings indicated that both needleless connectors and the placement of catheters through vascular introducer sheaths substantially reduced potential flow rates. Even 'large' vascular introducer sheaths capable of delivering high flow rates could be rendered minimally effective for rapid fluid administration when used in this way. Clinicians should consider these impediments to flow when rapid fluid administration is required, and obtain alternative vascular access if necessary.
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Anaesth Intensive Care · Apr 2024
Two sides to every story: Reappraising the early history of liver transplantation at Addenbrooke's Hospital, Cambridge.
Over the course of the past six decades, liver transplantation has evolved to become the treatment of choice for chronic end-stage liver disease and some cases of acute hepatic failure. Currently, more than 34,000 liver transplants are conducted worldwide per annum, and overall one year survival rates exceed 90%. However, the early years of human liver transplantation were beset by failure. ⋯ This article outlines the results of research aimed at critically appraising this postscript. In doing so a number of unexpected discoveries were made. These highlight some important lessons for medical historians and demonstrate that if you look hard enough, there really are two sides to every story.