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Dexmedetomidine target controlled infusion for awake craniotomy†
A Al-Attar1, M Back1, J Sebastian2
1North West School of Anaesthesia Manchester UK.
Anaesthesia Reports
|March 11, 2024
Summary
Dexmedetomidine target-controlled infusion using the Dyck model offers rapid, safe sedation for awake craniotomy. This method simplifies infusion management compared to manual methods, enhancing surgical procedures.
Area of Science:
- Neuroanesthesia
- Pharmacokinetics
- Neurosurgery
Background:
- Awake craniotomy requires precise sedation management for patient comfort and surgical success.
- Dexmedetomidine is a common sedative, but its manual titration can be challenging.
- Target-controlled infusion (TCI) systems offer potential advantages in drug delivery.
Observation:
- A 73-year-old female patient underwent awake craniotomy for a supratentorial brain tumor resection.
- Dexmedetomidine was administered via a TCI system utilizing the Dyck pharmacokinetic model.
- The TCI system allowed for rapid and accurate titration of sedation levels.
Findings:
- The dexmedetomidine TCI with the Dyck model enabled efficient sedation adjustments during the procedure.
- No cardiovascular, respiratory, or other complications were observed.
- This approach facilitated deeper sedation during surgical stimulation and lighter sedation for cortical mapping.
Implications:
- Dexmedetomidine TCI with the Dyck model presents a viable, simplified alternative to manual infusion for awake craniotomy.
- This method may improve the safety and efficiency of sedation management in neuroanesthesia.
- Further studies could explore the broader application of this TCI model in similar neurosurgical procedures.
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