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Comparative Effectiveness of Intranasal Dexmedetomidine–Midazolam versus Oral Chloral Hydrate Targeting Moderate Sedation during Pediatric Transthoracic Echocardiograms
03 September 2016
21 November 2016
26 December 2016 (online)
Objective To compare efficacy and safety of two moderate sedation regimens for transthoracic echocardiography (TTE): intranasal dexmedetomidine–midazolam (DM) versus oral chloral hydrate (CH) syrup.
Method This was a retrospective cohort of 93 children under 4 years of age receiving moderate sedation with either DM or CH for TTE from January 2011 through December 2014.
Measurements and Main Results Forty-nine patients received oral CH and 44 received the intranasal combination of DM. The demographics between groups were similar except the DM patients were slightly older and heavier (each p < 0.05). Failure rate between groups did not reach statistical significance (CH 14.3% vs. DM 6.8%; p = 0.324). Total sedation to discharge time was similar between groups (CH 89.4 minutes vs. DM 89.6 minute; p = 0.97). Cardiopulmonary data did reveal a significantly lower heart rate (101.9 vs. 91.7; p < 0.001) and respiratory rate (23.4 vs. 21.0, p = 0.03) in the DM group, but no difference in blood pressure measurements or echo determined shortening fraction.
Conclusion These data support the use of intranasal DM as a safe and efficacious method of moderate sedation for children undergoing TTE.
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