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: A prospective observational case series of children receiving light general anesthesia for magnetic resonance imaging (MRI) was performed. Our purpose was to examine the merit of anesthesia and recovery/discharge times of combined remifentanil and propofol total intravenous anesthesia (TIVA) in spontaneously breathing children.: After IRB approval and informed consent, 56 patients receiving Remi/Propofol TIVA (Remifentanil 10 μg·ml−1 Propofol 10 mg·ml−1) were observed. Blood pressure, respiratory rate, endtidal CO2 (PECO2), oxygen saturation and temperature were recorded at the start and finish of anesthesia. In addition, induction and recovery times were noted. Recovery time was from scan completion until discharge from the initial recovery area. Discharge time was from scan completion to discharge home.: Fifty-six patients received Remi/Propofol TIVA. The mean Remi/Propofol recovery and discharge times were 8.9 and 28.2 min, respectively. There was a statistically significant decrease in respiratory rate and increase in CO2 from the start to the end of the procedure. During the scan, seven patients moved. One patient experienced postprocedure nausea and or vomiting.: The combination of remifentanil and propofol for TIVA may be an effective method of light general anesthesia in pediatric patients undergoing MRI. [ABSTRACT FROM AUTHOR]

The aim of this study was to assess clinical signs of airway patency, airway intervention requirements and adverse events in 100 children receiving propofol total intravenous anesthesia for magnetic resonance imaging, with spontaneous ventilation and oxygenation via nasal prongs.Airway patency was clinically assessed and stepwise interventions were performed until a satisfactory airway was achieved. Propofol requirements, vital signs, procedure times and adverse events were also recorded.Ninety-three per cent of children had no signs of airway obstruction when positioned with a shoulder roll only, two required a chin lift, four required an oral airway and one required lateral positioning. The mean propofol induction dose was 3.9 mg·kg−1 (range 1.8–6.4 mg·kg−1). The mean propofol infusion rate was 193 μg·kg−1·min−1 (range 150–250 μg·kg−1·min−1). The initial and final mean respiratory rates were 26 and 23 b·min−1 (P < 0.05). Movement was more likely at lower infusion rates (mean 175 μg·kg−1·min−1). There were no respiratory or cardiovascular complications (calculated risk: 95% CI = 0–3%). The mean time from end of scan to discharge home was 44 min.This study demonstrates good preservation of upper airway patency and rapid recovery using general anesthetic doses of propofol in children. [ABSTRACT FROM AUTHOR]