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05:52
Prehospital Thrombolysis: A Manual from Berlin
Published on: November 26, 2013
Stroke thrombolysis in patients taking dabigatran
S Jayathissa1, J Gommans, P Harper
1Department of Medicine, Hutt Valley Hospital, Lower Hutt, New Zealand. sisira.jayathissa@huttvalleydhb.org.nz
Internal Medicine Journal
|July 12, 2013
Summary
Thrombolysis for acute stroke is common, but guidelines for dabigatran patients are lacking. A normal activated partial thromboplastin time suggests low dabigatran levels, but thrombin time assay ensures safe stroke treatment.
Area of Science:
- Neurology
- Pharmacology
- Emergency Medicine
Background:
- Thrombolysis is increasingly used for acute stroke in Australia and New Zealand.
- No specific guidelines exist for thrombolysis in patients taking dabigatran, a direct thrombin inhibitor.
- Accurate medication reconciliation for dabigatran can be challenging in emergency stroke settings.
Observation:
- Patients with normal activated partial thromboplastin time (aPTT) are unlikely to have clinically significant dabigatran levels.
- Activated partial thromboplastin time (aPTT) may not reliably reflect dabigatran's anticoagulant effect.
Findings:
- A normal activated partial thromboplastin time (aPTT) does not exclude the presence of dabigatran.
- Thrombin time assay is a more reliable indicator of dabigatran's anticoagulant activity.
Implications:
- Incorporating thrombin time assay is recommended for acute stroke patients potentially taking dabigatran.
- This approach can enhance patient safety during thrombolytic therapy.
- Standardizing diagnostic assays will improve acute stroke management protocols.
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