Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · Jul 2023
Propofol and thiopental for intravenous induction in neonates: study protocol for a dose-finding trial.
Propofol and thiopental are commonly used induction agents in neonatal anesthesia. Even though both hypnotics have been used off-label for many years, pharmacological knowledge regarding these agents is scarce in neonates. The significant variability in neonates' body composition, organ function, and maturation makes pharmacological studies highly relevant albeit challenging. As a result, there is currently limited data about the anesthetic induction dose of thiopental and propofol in neonates. In addition, a knowledge gap exists concerning the pharmacodynamics of induction doses. ⋯ Alterations in the systemic and cerebral regional hemodynamics secondary to anesthesia induction may be harmful in neonates, especially premature and critically ill newborns, due to their immature organ systems, reduced physiological reserves, and impaired cerebral autoregulation. Perfusion homeostasis is considered one of the significant and modifiable determinants of anesthesia-related neurocognitive outcomes. Therefore, dose-finding and safety pharmacological studies of the anesthetic induction agents in neonates are urgently needed and acknowledged as a high priority by the European Medicine Agency. Estimating adequate induction doses to ensure optimal depth of anesthesia while avoiding systemic and cerebral hemodynamic disturbances will help ensure safe anesthesia and potentially improve anesthesia-related outcomes in this group of patients.
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Acta Anaesthesiol Scand · Jul 2023
Review Meta AnalysisGlucocorticoids added to paracetamol and NSAIDs for postoperative pain: a systematic review with meta-analysis and Trial Sequential Analysis.
Paracetamol and non-steroidal anti-inflammatory drugs (NSAIDs) are recommended as the basic pain treatment regimen for most surgeries. Glucocorticoids have well-known anti-inflammatory and anti-emetic properties and may also demonstrate analgesic effects. We assessed benefit and harm of adding glucocorticoids to a combination of paracetamol and NSAIDs for post-operative pain management. ⋯ Multimodal approaches for post-operative analgesia are favoured, including paracetamol and nonsteroidal anti-inflammatory drugs. In this meta-analysis, pooled results from clinical trials are assessed to describe possible benefit of addition of glucocorticoid treatment for analgesia. The findings did not identify additional benefit, though the certainty of the evidence was not high.
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Acta Anaesthesiol Scand · Jul 2023
Randomized Controlled TrialComparing Restrictive vs. Liberal Oxygen Strategies for Trauma Patients: The TRAUMOX2 Trial - Statistical Analysis Plan.
The international advanced trauma life support guidelines recommend that all severely injured trauma patients receive supplemental oxygen based on very limited evidence. The TRAUMOX2 trial randomises adult trauma patients to a restrictive or liberal oxygen strategy for 8 h. The primary composite outcome consists of 30-day mortality and/or development of major respiratory complications (pneumonia and/or acute respiratory distress syndrome). This manuscript presents the statistical analysis plan for TRAUMOX2. ⋯ This statistical analysis plan of the TRAUMOX2 trial will minimise bias and add transparency to the statistics applied in the analysis of the trial. The results will add evidence on restrictive and liberal supplemental oxygen strategies for trauma patients.
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Acta Anaesthesiol Scand · Jul 2023
Preoperative anxiety level is not associated with postoperative negative behavioral changes in premedicated children.
Anesthesia preinduction anxiety in children can according to some studies lead to long-term anxiety and negative behavioral changes (NBC), while other studies have not found this effect. This secondary analysis from a recent premedication trial comparing clonidine and midazolam aimed to test the relation between preoperative anxiety assessed with modified Yale Preoperative Anxiety Scale (mYPAS) and postoperative NBCs assessed with Post Hospital Behavior Questionnaire (PHBQ), regardless of premedication type. ⋯ Based on the findings from this cohort, high preinduction anxiety does not appear to be associated with NBCs postoperatively in children premedicated with clonidine or midazolam.
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Acta Anaesthesiol Scand · Jul 2023
Randomized Controlled TrialAtrial natriuretic peptide in the prevention of acute renal dysfunction after heart transplantation - a randomized placebo-controlled double-blind trial.
Acute kidney injury (AKI) and renal dysfunction after heart transplantation are common and serious complications. Atrial natriuretic peptide (ANP) has been shown to increase glomerular filtration rate (GFR) and exert renoprotective effects when used for the prevention/treatment of AKI in cardiac surgery. We tested the hypothesis that intraoperative and postoperative administration of ANP could prevent a postoperative decrease in renal function early after heart transplantation. ⋯ The study failed to detect that ANP infusion attenuates renal dysfunction or decreases the incidence of AKI after heart transplantation.