Pharmacokinetics of Dexmedetomidine in an In Vitro Circuit Model and In Vivo Extracorporeal Membrane Oxygenation Rat Model
Year: 2025
Type: article
Abstract: Background and objectives: Extracorporeal membrane oxygenation (ECMO) causes variability in the pharmacokinetics (PK) of drugs. Fluctuations in the PK profile of dexmedetomidine (DEX) might significantly reduce the likelihood of obtaining a therapeutic effect. The study aimed to clarify the effect of ECMO on the PK of DEX. Methods: In vitro circuit and in vivo rat models were developed, both of which involved a bolus injection of DEX and concentration monitoring. In the in vivo model experiment, rats that underwent ECMO were compared with a control group. PK analysis of in vivo data (noncompartmental analysis and nonlinear mixed-effects modeling) was carried out to determine the effect of ECMO. Results: In the in vitro model experiment, the expected recovery (%) of DEX decreased after injection into the circuits. In vivo PK analysis showed that the ECMO significantly influenced the clearance of DEX, which was 75% lower in the presence of ECMO than in the absence of ECMO. Conclusion: These results suggest that ECMO may affect the efficacy or increase the risk of side effects associated with DEX.
Source: Cureus
DOI: 10.7759/cureus.82165
Institutions: Fukuyama University, Niigata University of Health and Welfare
Language: English
Subfield: Anesthesiology and Pain Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4409395478