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Age-Stratified Propofol Dosage for Pediatric Procedural Sedation and Analgesia
Huib van Dijk1, Mark P Hendriks, Marga M van Eck-Smaling
1From the Department of Anesthesiology, Division of Anesthesiology, Intensive Care and Emergency Medicine, UMC Utrecht, Utrecht, the Netherlands.
Insights
Pediatric procedural sedation requires lower propofol doses with increasing age. Infants and toddlers needed higher propofol sedation doses than anticipated.
Area of Science:
- Anesthesiology
- Pediatric Sedation
- Pharmacology
Background:
- Procedural sedation and analgesia (PSA) is common in pediatric patients.
- Clinical experience suggested an inverse relationship between patient age and propofol dosage.
- A standardized age-stratified dosage schedule for PSA was lacking.
Purpose of the Study:
- To investigate the age-dependency of propofol induction and maintenance dosages for pediatric procedural sedation.
- To provide a reference schedule for anesthesiologists.
Main Methods:
- Retrospective cohort study of 6438 pediatric procedures from June 2007 to December 2020.
- Analysis of propofol induction (mg·kg -1 ) and maintenance (mg·kg -1 ·h -1 ) dosages.
- Linear regression models adjusted for sex, ASA status, opioid use, and procedure type.
Main Results:
- A significant inverse relationship was found between age and propofol dosage for both induction and maintenance.
- Multivariable regression showed coefficients of -0.11 for induction and -0.36 for maintenance dosage per year of age.
- Higher propofol doses were required for infants and toddlers than previously reported.
Conclusions:
- An inverse age-effect on propofol dosage for pediatric procedural sedation was confirmed.
- Infants and toddlers require higher propofol sedation doses than previously expected.
- The findings support the development of age-stratified dosage guidelines.
Background:
Procedural sedation and analgesia (PSA) for diagnostic and minimally invasive therapeutic procedures has become common practice in children of all ages. Based on our clinical experience, we suspected an inverse relation between age and dosage. However, a schedule for age-stratified propofol induction and maintenance dosage for PSA was not available and could be helpful to many anesthesiologists as a reference.
Methods:
We performed a retrospective cohort study of children who received procedural sedation at the Wilhelmina Children's Hospital (WKZ), a tertiary pediatric hospital part of the University Medical Center Utrecht (UMCU), between June 2007 and December 2020. We studied whether the induction (mg·kg -1 ) and maintenance (mg·kg -1 ·h -1 ) dosage is age-dependent using linear regression models.
Results:
A total of 6438 pediatric procedures were retrieved from Anesthesia Information Management Systems (AIMS). A total of 5567 records were available for induction dose analysis and 5420 records for analysis of the maintenance dose. After adjustment for sex, American Society of Anesthesiologists (ASA) physical status classification, opioid administration, and diagnostic or interventional, we obtained a coefficient of -0.11 (95% confidence interval [CI], -0.12 to -0.11) for age (years) from a multivariable linear regression model for propofol induction dosage (mg·kg -1 ) and a coefficient of -0.36 (95% CI, -0.39 to -0.34) for age (years) for propofol maintenance dosage.
Conclusions:
We found a noteworthy inverse age-effect on propofol dosage for both induction and maintenance of pediatric procedural sedation. Furthermore, our study revealed that remarkably higher propofol sedation doses were needed for infants and toddlers than previously expected and reported.
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