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Published on: January 17, 2011
Evaluation of propofol-ketamine anesthesia for children undergoing cardiac catheterization procedures
Parthasarathi Gayatri1, Puthussery Raman Suneel, Prabhat K Sinha
1Department of Anesthesiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, India. gayat100@hotmail.com
Insights
This study found that combining propofol with either 25 or 12.5 mcg/kg/min of ketamine is safe and effective for pediatric cardiac catheterization procedures (CCP). Lower ketamine doses resulted in faster awakening times without compromising safety.
Area of Science:
- Pediatric Anesthesiology
- Cardiovascular Procedures
- Pharmacology
Background:
- Cardiac catheterization procedures (CCP) in children require safe and effective anesthesia.
- Continuous intravenous infusions of propofol and ketamine are used for pediatric sedation.
- Optimizing anesthetic combinations for CCP is crucial for patient outcomes.
Purpose of the Study:
- To evaluate the safety and efficacy of continuous intravenous propofol-ketamine combinations for pediatric CCP.
- To compare two different doses of ketamine when combined with propofol during CCP.
- To assess hemodynamic stability, airway compromise, and recovery times.
Main Methods:
- A prospective randomized study involving 32 children undergoing CCP.
- Group 1 received propofol (25 mcg/kg/min) + ketamine (25 mcg/kg/min).
- Group 2 received propofol (25 mcg/kg/min) + ketamine (12.5 mcg/kg/min).
Main Results:
- No significant differences in patient demographics or procedure characteristics between groups.
- Both anesthetic combinations were safe, with no hemodynamic instability, airway issues, or desaturation.
- Lower ketamine doses (12.5 mcg/kg/min) led to significantly faster awakening times (P < 0.05).
- Increased movement was observed with lower ketamine doses, but not statistically significant.
Conclusions:
- Continuous intravenous administration of propofol with either 25 or 12.5 mcg/kg/min ketamine is safe and effective for pediatric CCP.
- The lower ketamine dose (12.5 mcg/kg/min) offers a potential advantage with faster recovery.
- Both regimens provide adequate anesthesia for pediatric cardiac procedures.
Abstract:
The aim of this study was to assess the safety and efficacy of the continuous intravenous administration of a combination of propofol and ketamine for children undergoing cardiac catheterization procedures (CCP). Thirty-two children scheduled for CCP in a university teaching hospital were included in this prospective randomized study. Patients in group 1 (n = 15) were given a combination of propofol (25 microg/kg per minute) and ketamine (25 microg/kg per minute), whereas patients in group 2 (n = 17) received a combination of propofol (25 microg/kg per minute) and ketamine (12.5 microg/kg per minute) for the maintenance of anesthesia. There were no statistically significant differences with age, weight, duration of the procedure, and the number of diagnostic and interventional procedures between the two groups. There was no hemodynamic instability, airway compromise, excessive salivation, or arterial desaturation in either of the two groups. There was more incidence of movements in patients who received less dose of ketamine; however, it did not reach to statistically significant level. The total dose of ketamine used in group 1 was 309.25 +/- 90.97 microg/min, whereas in group 2, it was 148.06 +/- 34.05 microg/min. The time to awakening was significantly less in group 2 (P < 0.05). We conclude that a combination of propofol (25 microg/kg per minute) and two different doses of ketamine (25 and 12.5 microg/kg per minute, respectively) are safe and efficacious for CCP in children. Although the time to awaken was more in patients receiving 25 microg/kg per minute of ketamine compared to those receiving 12.5 microg/kg per minute of ketamine, it was well within acceptable limits.
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