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Baclofen self-poisoning: Is renal replacement therapy efficient in patient with normal kidney function?
Marion Brunet1, Maxime Léger2, Pierre-André Billat3
1Western Poison Control Center, University Hospital, 4 rue Larrey, 49100 Angers, France.
Anaesthesia, Critical Care & Pain Medicine
|October 17, 2020
Summary
Renal replacement therapy (RRT) did not significantly alter baclofen elimination or intubation duration in patients with severe poisoning and normal kidney function. This suggests RRT is not a primary intervention for baclofen overdose in this population.
Area of Science:
- Pharmacology
- Toxicology
- Nephrology
Background:
- Severe baclofen poisoning can lead to significant toxicity.
- Renal replacement therapy (RRT) is a potential treatment for drug overdose.
- The efficacy of RRT in baclofen poisoning with normal kidney function is not well-established.
Purpose of the Study:
- To assess the effectiveness of RRT in patients with severe baclofen poisoning and normal kidney function.
- To evaluate the impact of RRT on baclofen pharmacokinetics and clinical outcomes.
Main Methods:
- A population pharmacokinetic model was developed using data from 26 baclofen poisoning cases.
- Patients were categorized into groups with and without RRT.
- Baclofen elimination half-life and duration of mechanical ventilation were compared between groups.
Main Results:
- The estimated elimination half-life of baclofen was similar in patients with (3.1 h) and without (3.4 h) RRT.
- The median duration of mechanical ventilation was not significantly different between the RRT and no-RRT groups (72 h for both).
- RRT did not significantly increase baclofen clearance in patients without kidney failure.
Conclusions:
- Renal replacement therapy does not appear to significantly enhance baclofen clearance in patients with normal kidney function.
- RRT is unlikely to be a beneficial intervention for severe baclofen poisoning when kidney function is preserved.
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