Articles: general-anesthesia.
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Letter Comparative Study
One-year Outcomes of Spinal versus General Anesthesia: Reply.
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Acta Anaesthesiol Scand · Oct 2024
Absorption pharmacokinetics and feasibility of intranasal dexmedetomidine in patients under general anaesthesia.
The use of intranasal dexmedetomidine is hampered by a limited understanding of its absorption pharmacokinetics. ⋯ Administration of intranasal dexmedetomidine in the supine position during general anaesthesia is feasible with good bioavailability. This administration method has slower absorption when compared to awake patients in upright position, with consequent concentrations attained after TMAX for several hours.
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J Clin Monit Comput · Oct 2024
Vasoconstriction with phenylephrine increases cardiac output in preload dependent patients.
General Anaesthesia (GA) is accompanied by a marked decrease in sympathetic outflow and thus loss of vasomotor control of cardiac preload. The use of vasoconstriction during GA has mainly focused on maintaining blood pressure. Phenylephrine (PE) is a pure α1-agonist without inotropic effects widely used to correct intraoperative hypotension. ⋯ During PE-infusion SVV was reduced to 6 ± 3%, CI increased to 2,6 ± 0,5 L/min*m2, and SVI increased to 49 ± 11mL/m2. All differences p < 0,001. In conclusion: Infusion of phenylephrine during preload dependency increased venous return abolishing preload dependency as evaluated by SVV and increased cardiac stroke volume and -output as measured by indicator-dilution technique. (ClinicalTrials.gov NCT05193097).
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Minerva anestesiologica · Oct 2024
Meta Analysis Comparative StudyComparison between hemodynamic effects of remimazolam and propofol during general anesthesia: a systematic review and meta-analysis.
The need for safe anesthetic agents with minimal side effects has led to the development of remimazolam, a new benzodiazepine designed to be an alternative to the commonly used drug propofol, which has significant hemodynamic effects. This study aims to compare the hemodynamic effects of remimazolam with propofol during general anesthesia. ⋯ This study provides evidence that remimazolam induces fewer cardiorespiratory depressant effects and has a more favorable side effect profile compared to propofol during general anaesthesia.