• Jascha A van de Bunt and Esther S Veldhoen.
• Department of Pediatric Surgery, University Medical Centre Utrecht, Utrecht, The Netherlands.
• Paediatr Anaesth. 2017 Nov 1; 27 (11): 1091-1097.

BackgroundHydrostatic or pneumatic reduction of intussusception is an invasive procedure that is stressful and may be painful for a child. Resistance of the child may increase the duration of the procedure and decrease success rate of reduction. Analgesia can help to reduce pain, but not necessarily resistance. General anesthesia increases success rate of reduction. However, it requires the presence of an anesthesiologist, and may lead to anesthesia-related complications. Procedural sedation with esketamine could be a safe alternative.AimThe aim of this study was to compare hydrostatic reduction using morphine analgesia compared to procedural sedation with esketamine in terms of success rate, adverse events, and duration of reduction.MethodsA retrospective case-cohort comparison study was performed with two groups of patients who had undergone hydrostatic reduction for ileocolic intussusception and received morphine analgesia (n = 37) or esketamine sedation (n = 20). Until July 2013, reduction was performed after intravenously administered morphine. Hereafter, a new protocol for procedural sedation was implemented and reduction was performed after administration of esketamine. Cases were matched for age and duration of symptoms.ResultsNo adverse events requiring intervention other than administration of oxygen were reported for either group. Success rate of reduction using esketamine sedation was 90% vs 70% using morphine analgesia, risk ratio (RR) 1.29, 95% CI[0.93-1.77]. Recurrence rate using esketamine sedation was 10% vs 15% using morphine analgesia, RR 0.67, 95% CI[0.12-3.57]. Reduction time was shorter using esketamine sedation (Median 5 minutes, IQR 9 minutes) vs morphine analgesia (Median 8 minutes, IQR 16 minutes, P = .04, Median difference 3, 95% CI[-1.50-8.75]). Median hospital stay in the esketamine group was 1.5 days (IQR 1.8) vs 2 days (IQR 5.3) in the morphine group.ConclusionNo serious adverse events were recorded. In comparison to morphine analgesia, with esketamine there was weak evidence for a higher success rate, lower recurrence rate, shorter duration, and shorter length of hospital stay.© 2017 John Wiley & Sons Ltd.

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