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Opioid exposure in neonates and infants following cardiac surgery: a comparative analysis
Melissa B Jones1, Christine Riley1, Gil Wernovsky2
1Division of Cardiac Critical Care Medicine, Children's National Hospital, USA.
Insights
This study examined opioid exposure in neonates following cardiac surgery. Findings highlight the need for better pain management strategies in critically ill infants to support neurodevelopment.
Area of Science:
- Pediatric critical care medicine
- Neonatal surgery
- Pain management in infants
Background:
- Untreated pain and opioid exposure can negatively affect infant neurodevelopment.
- Critically ill infants undergoing cardiac surgery are particularly vulnerable.
Purpose of the Study:
- To describe and compare opioid exposure in neonates (≤30 days) after cardiac surgery.
- To identify potential areas for improved pain management in this population.
Main Methods:
- Retrospective cohort analysis of cardiac ICU surgical patients.
- Data collected over a 30-day period post-surgery.
- Single-centre study design.
Main Results:
- Opioid exposure patterns were described in neonates post-cardiac surgery.
- The study provides a baseline for understanding opioid use in this cohort.
Conclusions:
- Careful pain assessment is crucial for critically ill infants.
- Additional strategies are needed to address pain and minimize opioid exposure.
- Optimizing pain management supports neurodevelopmental outcomes.
Introduction:
Both untreated pain and opioid exposure impact neurodevelopment in critically ill infants. Mitigating both remains a challenge in the management of infants undergoing cardiac surgery. Our aim was to describe and compare opioid exposure in neonates (≤ 30 days of age), and infants' (>30 days of age) post-cardiac surgery.
Methods:
We conducted a secondary analysis of a single center retrospective cohort of all CICU surgical patients < 1 year of age to quantify opioid exposure within 5 days post-surgery. Patient demographics, surgical data, pain medications and pain/sedation scores were collected and analyzed.
Results:
Of 170 patients less than 1 year of age, 75 were neonates at time of surgery. Groups were similar with respect to gender, race, ethnicity and genetic abnormalities. Biventricular CHD without arch obstruction was more common in infants. Neonates had significantly longer duration of mechanical ventilation, ICU and hospital length of stay. Mean total opioid exposure was significantly higher in neonates (10.39 ± 8.85mgMME/kg/5days) than in infants (5.06 ± 10.01mgMME/kg/5days) (p < 0.001). Initial and maximum opioid infusion doses were higher in neonates than infants (0.93 vs 0.74 mgMME/kg/hr; 1.32 vs. 1.13 mgMME/kg/hr), as were as needed (PRN) doses (22 vs.13). Dexmedetomidine exposure was greater in neonates (45.39 ± 39.09 vs. 29.01 ± 33.50 mcg/kg/5d), and more neonates were discharged on Methadone (31.3% vs. 10.8%).
Discussion:
Compared to infants, neonates with CHD had more complex disease and postoperative opioid exposure. Higher opioid exposure in neonates, compared to infants underscores the heightened vulnerability of neonates who requires surgery compared to the infant >30 days. These findings also suggest the need for careful pain assessment and additional strategies to address pain in this vulnerable population.
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