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Dexmedetomidine Use in a Pediatric Intensive Care Unit: A Retrospective Cohort Study
Heidi L Banasch1, Deonne A Dersch-Mills1, Leah L Boulter1
11 Alberta Health Services, Calgary, AB, Canada.
Insights
Dexmedetomidine is increasingly used in critically ill children, including those not on mechanical ventilation. While generally well-tolerated, adverse effects were noted in younger patients and with longer infusions, with frequent withdrawal symptoms observed.
Area of Science:
- Pediatric Critical Care Medicine
- Pharmacology
- Intensive Care Unit Management
Background:
- Increasing use of dexmedetomidine in critically ill pediatric patients.
- Limited data exists on its effects on mechanical ventilation, sedative use, and adverse events.
- Need for comprehensive understanding of dexmedetomidine's role in pediatric intensive care.
Purpose of the Study:
- To describe the utilization patterns of dexmedetomidine in critically ill children.
- To evaluate the tolerability and safety profile of dexmedetomidine in this population.
- To assess the impact of dexmedetomidine on mechanical ventilation and concomitant sedative use.
Main Methods:
- Retrospective cohort study in a pediatric intensive care unit.
- Inclusion of 219 critically ill pediatric patients receiving dexmedetomidine.
- Data collection on dexmedetomidine administration, ventilatory support, other sedatives, adverse effects, and withdrawal.
Main Results:
- Dexmedetomidine used as a first-line sedative in 47.9% of patients, with a median infusion of 27 hours.
- Significant use in noninvasively ventilated (19.6%) and non-ventilated (35.6%) patients.
- Adverse effects in 42% of patients, associated with younger age and longer infusion durations; 80% experienced withdrawal symptoms.
Conclusions:
- Dexmedetomidine is widely used in critically ill children, including non-ventilated and noninvasively ventilated populations.
- Adverse effects are more common in younger children and with prolonged infusions.
- High incidence of withdrawal symptoms necessitates careful monitoring and management.
Background:
Use of dexmedetomidine in critically ill pediatric patients is increasing despite limited data on effects on mechanical ventilation times, use of other sedatives, adverse effects, and withdrawal.
Objectives:
To describe the use and tolerability of dexmedetomidine in a large cohort of critically ill children.
Methods:
This was a retrospective cohort study of patients receiving dexmedetomidine in a pediatric intensive care unit. Ethical approval was granted by the local review board. Data on dexmedetomidine administration, ventilatory support, other sedatives, adverse effects, and withdrawal were collected.
Results:
There were 219 patients included. Dexmedetomidine was a first-line sedative in 47.9% of patients; the median infusion duration was 27 hours. Of patients on other sedatives at dexmedetomidine initiation, 39.5% had a dose reduction in those sedatives by 24 hours. Use of dexmedetomidine in noninvasively ventilated patients was common (19.6%), as was use in patients on no ventilatory support (35.6%). Patients receiving no ventilatory support used dexmedetomidine for shorter durations ( P = 0.001) and were less likely to have received prior sedatives ( P < 0.001). Adverse effects occurred in 42% of patients and were associated with younger age ( P = 0.001) and longer dexmedetomidine duration ( P < 0.001). The majority of patients (65%) were weaned off dexmedetomidine, and 80% of patients had at least one sign of withdrawal.
Conclusions:
Our data suggest substantial use in noninvasively ventilated patients. Adverse effects appeared more common in younger patients and those with prolonged infusions. A high rate of withdrawal effects was seen; no associations with age, dose, or duration were found.
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