ArticleMedical science monitor : international medical journal of experimental and clinical research2019
Minimum Alveolar Concentration of Sevoflurane with Cisatracurium for Endotracheal Intubation in Neonates.
Article in Medical science monitor : international medical journal of experimental and clinical research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed, 3 citations in OpenAlex.
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4 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND Sevoflurane inhalation induction is widely used in pediatric anesthesia, but the minimum alveolar concentration for endotracheal intubation (MACEI) when combined with neuromuscular blockade in neonates has been largely unexplored. This study assessed the MACEI of sevoflurane combined with cisatracurium in neonates. MATERIAL AND METHODS Anesthesia induction was commenced by inhaling 4% sevoflurane with 2 l/min of 100% oxygen via mask. Neonates were administered cisatracurium 0.2 mg/kg followed by adjustment of inspired sevoflurane to target end-tidal concentration based on intubation condition of the preceding subject. When the steady-state end-tidal sevoflurane concentration target was maintained for at least 15 min, endotracheal intubation by direct laryngoscope was performed. The intubation condition was considered failed if either heart rate (HR) after intubation increased by 20% or mean arterial blood pressure (MAP) by 30% or more than that before intubation. Otherwise, the intubation condition was regarded as successful. Dixon's up-and-down method was used with 0.2% as the step size to determine the target end-tidal sevoflurane concentration. RESULTS The MACEI of sevoflurane combined with cisatracurium in neonates was 2.76±0.24%. Using probit analysis, the 50% effective end-tidal sevoflurane concentration (ED50) for successful condition of endotracheal intubation was 2.61% (95%CI 2.07-2.88%) and the 95% effective end-tidal sevoflurane concentration (ED95) was 3.28% (95%CI 2.95-7.19%). Hypotension and bradycardia occurred in 2 neonates during induction. CONCLUSIONS Sevoflurane combined with cisatracurium is feasible and effective for intubation in neonates, and the MACEI of sevoflurane in this subpopulation is 2.76±0.24%. However, cardiovascular adverse effects should be taken into consideration.
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