Comparison of Intranasal Dexmedetomidine and Oral Chloral Hydrate for Sedation

Overview

This study evaluates the efficacy and safety of intranasal dexmedetomidine versus oral chloral hydrate for sedation during transthoracic echocardiography in infants with congenital heart disease.

Background

Sedation in infants under 3 months, particularly those with congenital heart disease, poses significant challenges due to potential hemodynamic instability. Effective sedation is crucial for obtaining accurate echocardiographic data.

Data Highlights

Key Findings

• The initial sedation success rate was higher in the dexmedetomidine group compared to the chloral hydrate group.
• Sedation onset and discharge times were significantly shorter with dexmedetomidine.
• Heart rate decline was greater in the dexmedetomidine group.
• No severe adverse reactions were reported in either group.
• Low body weight and prolonged fasting time were identified as independent risk factors affecting sedation success.

Clinical Implications

The findings suggest that intranasal dexmedetomidine may be a more effective sedative option for infants with congenital heart disease undergoing echocardiography. Clinicians should consider body weight and fasting duration when planning sedation for this population.

Conclusion

Intranasal dexmedetomidine demonstrates a higher success rate for sedation in infants under 3 months with congenital heart disease compared to oral chloral hydrate.

Related Resources & Content

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5. AAPD Best Practices 2025 -- Monitoring Sedation
6. Intranasal dexmedetomidine for procedural sedation in children: a systematic review and meta-analysis, 2025
7. https://www.aapd.org/globalassets/media/policies_guidelines/bp_monitoringsedation25.pdf
8. Intranasal dexmedetomidine for procedural sedation in children: a systematic review and meta-analysis