Journal of clinical anesthesia
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Randomized Controlled Trial
Acoustic lens improves superficial in-plane ultrasound-guided procedures - The significance of the beam width artefact.
The three-dimensional shape of the ultrasound beam produces a thicker scan plane than most users assume. Viewed longitudinally, a needle placed lateral to a vessel just outside the central scanning plane can be displayed incorrectly in the ultrasound image as if placed intravascularly. This phenomenon is called the beam width artefact, also known as the elevation or slice thickness artefact. The goal of this study was to demonstrate the potential negative effect of the beam width artefact on the performance of in-plane ultrasound-guided vascular access procedures, and to provide a solution. ⋯ The beam width artefact has a significant effect on the performance of ultrasound-guided needle-based procedures. The efficacy of in-plane superficial vascular access procedures can be enhanced by narrowing the imaging plane using an acoustic lens.
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To develop and validate a pragmatic risk screening score for postoperative delirium (POD) based on routine preoperative data. ⋯ The PROPDESC score showed promising performance on a separate validation cohort in predicting POD based on routine preoperative data. Suitability for universal screening needs to be shown in a large external validation.
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Observational Study
Prediction of the severity of acute kidney injury after on-pump cardiac surgery.
On-pump cardiac surgery is associated with a high risk of acute kidney injury (AKI), which can substantially affect risk of mortality and morbidity depending on its severity. Current methods are limited in predicting AKI severity. This study aimed to develop and validate a model to predict AKI severity after on-pump cardiac surgery. ⋯ The prediction model incorporating 10 predictors may be useful for predicting severity of AKI after on-pump cardiac surgery.