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Safety of deep sedation in young children with sickle cell disease: a retrospective cohort study
Ami P Belmont1, Fadi Nossair1, Donald Brambilla2
1Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA.
Insights
Deep sedation for pediatric sickle cell disease (SCD) patients undergoing MRI is safe, with complication rates similar to children without SCD. Further study is needed for vaso-occlusive events post-sedation.
Area of Science:
- Pediatric Anesthesiology
- Hematology
- Medical Imaging
Background:
- Sickle cell disease (SCD) presents unique challenges for pediatric care.
- Deep sedation is often required for medical imaging procedures like MRI in children.
- Assessing sedation safety in SCD patients is crucial.
Purpose of the Study:
- To evaluate the safety of deep sedation in children with SCD.
- To determine the incidence and types of complications.
- To identify potential risk factors for adverse events.
Main Methods:
- Retrospective cohort study comparing children with SCD to a control group.
- Analysis of sedation records for magnetic resonance imaging (MRI) procedures.
- Calculation of general and SCD-associated complication rates.
Main Results:
- No significant difference in sedation-related complication rates between SCD and control groups.
- Vaso-occlusive events (VOE) and acute chest syndrome occurred but were not significantly higher post-sedation.
- Prior VOE history was linked to post-sedation VOE, but other risk factors were not identified.
Conclusions:
- Deep sedation with standard protocols is safe for pediatric SCD patients undergoing MRI.
- Sedation complication rates are comparable to the general pediatric population.
- The rate of vaso-occlusive events warrants further investigation.
Objective:
To assess the rates and types of complications associated with deep sedation in children with sickle cell disease (SCD) and to explore potential risk factors.
Study Design:
This was a retrospective cohort study of children with SCD and a comparison group of children without SCD who underwent magnetic resonance imaging with deep sedation. The rates of general and SCD-associated sedation complications were calculated, and potential associated clinical and laboratory variables were assessed.
Results:
A total of 162 sedation records in 94 subjects with SCD and 324 sedation records in 321 subjects without SCD were assessed (mean age, 4.3 years in both groups). Pentobarbital, fentanyl, and midazolam were used in the majority of sedation episodes without routine presedation transfusion. Sedation-related complication rates did not differ significantly between the SCD and comparison groups. Within 1 month after the sedation procedure, 17 children (10%) experienced a vaso-occlusive pain episode (VOE), and 2 children (1.2%) developed acute chest syndrome. Preprocedure and postprocedure rates of these complications did not differ significantly. Subjects who developed VOE after sedation had a significantly higher VOE rate before sedation, but no other significant clinical or laboratory risk factors were identified.
Conclusion:
Deep sedation in young children with SCD using a standard protocol is safe, with a sedation-related complication rate comparable to that of the general pediatric population. The observed rate of VOE, although not significantly higher than expected, warrants further investigation.
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