Key result
Sequential administration of protamine and reduced-dose intravenous recombinant tissue plasminogen activator (0.6 mg/kg) successfully treated acute ischemic stroke after cardiac catheterization.
Why the study?
Does sequential protamine and reduced-dose rtPA safely treat acute ischemic stroke after cardiac catheterization?
Case Report (n=3)
Does sequential protamine and reduced-dose rtPA safely treat acute ischemic stroke after cardiac catheterization?
Sequential administration of protamine and reduced-dose rtPA may be a safe and efficacious off-label treatment for acute ischemic stroke following cardiac catheterization.
Should not yet change practice for post-catheterization stroke; single case leaves open need for prospective safety and efficacy data.
: Intravenous thrombolysis is the preferred treatment for acute ischemic stroke; however, it remains unestablished in the area of cardiac catheterization. We report three patients with acute ischemic stroke after cardiac catheterization. After reversing the anticoagulant effect of unfractionated heparin with protamine, all of the patients were successfully off-label thrombolyzed with reduced doses of intravenous recombinant tissue plasminogen activator (0.6 mg/kg). This dose was preferred to reduce the risk of symptomatic cerebral or systemic bleeding. The sequential pathway of protamine recombinant tissue plasminogen activator at reduced doses may be safer for reducing intracranial or systemic bleeding events, whereas remaining efficacious for the treatment of acute ischemic stroke after cardiac catheterization.
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Guevara et al. (2016) conducted a case report in acute ischemic stroke after cardiac catheterization (n=3). protamine and reduced dose intravenous recombinant tissue plasminogen activator was evaluated. Sequential administration of protamine and reduced-dose intravenous recombinant tissue plasminogen activator (0.6 mg/kg) successfully treated acute ischemic stroke after cardiac catheterization.
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