Related Experiment Videos
[Effects of premedication in children with congenital cardiopathy]
1Servicio de Anestesiología, Hospital Clínic i Provincial, Universidad de Barcelona.
Insights
Premedication with pentobarbital alone did not adequately sedate children with congenital heart disease. Adding morphine improved sedation and stabilized oxygen saturation, particularly in cyanotic heart patients.
Area of Science:
- Pediatric Anesthesiology
- Cardiovascular Surgery
- Pharmacology
Background:
- Congenital heart disease (CHD) necessitates careful perioperative management.
- Effective premedication is crucial for pediatric surgical patients, especially those with complex cardiac conditions.
Purpose of the Study:
- To evaluate the efficacy of a specific premedication regimen in children undergoing congenital heart defect repair.
- To assess the impact of premedication on oxygen saturation (SpO2) and sedation levels.
Main Methods:
- A study involving 25 children with congenital heart defects, divided into noncyanotic (CNC) and cyanotic (CC) groups.
- Rectal pentobarbital followed by subcutaneous morphine administration.
- Monitoring of SpO2, sedation, and airway obstruction at multiple time points.
Main Results:
- Pentobarbital alone provided inadequate sedation in most patients.
- The addition of morphine significantly improved sedation rates (36% to 80%).
- SpO2 showed non-significant improvement in the cyanotic group and remained stable in the noncyanotic group, with one instance of hypoventilation.
Conclusions:
- Rectal pentobarbital (4 mg/kg) is insufficient for adequate pediatric premedication.
- Subcutaneous morphine (0.15 mg/kg) significantly enhances sedation and stabilizes SpO2 in children with CHD.
- This combined regimen offers a potentially safer and more effective approach to premedication in this population.
Objectives:
To evaluate the effects of premedication in children with congenital heart disease.
Material And Methods:
Twenty-five children scheduled for surgical repair of congenital heart defects were studied. Two groups were formed based on whether cardiopathy was noncyanotic (group CNC) or cyanotic (group CC). Patients were premedicated rectally with 4 mg/kg pentobarbital and, 15 minutes later, with 0.15 mg/kg of morphine chloride by subcutaneous perfusion. SpO2 was monitored, as was the degree of sedation and airway obstruction prior to premedication (T1), 15 minutes after administration of pentobarbital (T2) and 30 minutes after morphine (T3).
Results:
In the children with cyanotic cardiopathy, SpO2 increased over T1 (75.5 +/- 8.7%) at times T2 (76.2 +/- 7.7%) and T3 (78.1 +/- 8%), although the change was not statistically significant. In group CNC, average SpO2 did not change, although one case of clinically significant desaturation due to hypoventilation was observed at T3. Adequate sedation was attained in 36% of patients at T2 and in 80% at T3 (p < 0.002). There were no cases of airway obstruction.
Conclusion:
Premedication with 4 mg/kg pentobarbital rectally does not provide adequate sedation. Addition of 0.15 mg/kg subcutaneous morphine chloride increased the effect considerably, providing stability in SpO2 and even improving it in group CC.