Changes in blood pressure and heart rate during sedation with ketamine in the pediatric ED - 19/04/17
, Shernaz A. Wadia, MD, MSc a, Douglas J. Lorenz, PhD b, Michelle D. Stevenson, MD, MS aAbstract |
Background |
Ketamine is commonly used in the emergency department for short, painful procedures. We describe changes in blood pressure (BP) and heart rate (HR) during procedural sedation with ketamine, as these changes have not been well described in children.
Methods |
We performed a secondary analysis of a prospective, observational study involving children aged 8 to 18 years who received procedural sedation with ketamine in a pediatric emergency department. Serial vital signs and sedation scores were recorded from baseline until recovery from ketamine procedural sedation. Time of orthopedic manipulation was also recorded. Linear mixed-effect models were used to evaluate changes in systolic BP (SBP), diastolic BP (DBP), and HR using 3 sedation strata: presedation (baseline), sedated (ketamine administered and patient deeply sedated), and recovery (ketamine administered with patient minimally sedated), controlling for age and weight.
Results |
Sixty children were enrolled; 10 were excluded due to missing manipulation time. A total of 394 observations were recorded. Mean sedated SBP, DBP, and HR were 8 mm Hg, 4 mm Hg, and 13 beats/min higher than presedation SBP (P<.001), DBP (P<.01), and HR (P<.001), respectively. Mean sedated SBP and DBP were 3 and 4 mm Hg higher than SBP (P=.006) and DBP (P<.01) during recovery. Manipulation increased mean SBP by 5 mm Hg (P<.001), mean DBP by 7 mm Hg (P<.001), and mean HR by 1 beat/min (P=.35).
Conclusions |
Ketamine administered during procedural sedation for painful procedures causes a statistically significant but modest increase in SBP, DBP, and HR. Orthopedic manipulation further increases BP.
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| ☆ | Funding and support: This is a secondary analysis of a project that received $5128 from a Pediatric Intradepartmental Small Grant Committee at the University of Louisville. The grant funded a biostatician (Lorenz) for this analysis. |
| ☆☆ | Meetings: Presented at the Pediatric Academic Societies Conference, Vancouver, BC, Canada, in May 2014. |
Vol 35 - N° 2
P. 322-325 - février 2017 Retour au numéro
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