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Updated: Aug 18, 2026

Prehospital Thrombolysis: A Manual from Berlin
Published on: November 26, 2013
Thrombolytics in CPR. Current advantages in cardiopulmonary resuscitation
1Department of Anaesthesiology, University of Heidelberg, Heidelberg, Germany.
Insights
Thrombolytic therapy during cardiopulmonary resuscitation (CPR) may improve survival and neurological outcomes in cardiac arrest patients. Current data suggest it does not increase bleeding risks, despite prior concerns.
Area of Science:
- Cardiology
- Emergency Medicine
- Pharmacology
Background:
- Cardiac arrest has a high mortality rate, often caused by acute myocardial infarction or pulmonary embolism.
- Thrombolysis during CPR offers potential benefits by treating the underlying cause and improving cerebral reperfusion.
- Fear of bleeding complications has limited the use of thrombolysis during CPR.
Purpose of the Study:
- To review existing studies on the efficacy and safety of thrombolysis administered during cardiopulmonary resuscitation (CPR).
- To evaluate the impact of thrombolysis on restoration of spontaneous circulation and patient outcomes.
- To assess the risk of bleeding complications associated with thrombolysis during CPR.
Main Methods:
- Review of in-hospital and out-of-hospital studies concerning thrombolysis during CPR.
- Analysis of data regarding patient survival, neurological condition, and bleeding events.
- Consideration of ongoing randomized controlled trials evaluating thrombolysis during prehospital CPR.
Main Results:
- Most studies indicate that thrombolytic therapy during CPR improves the likelihood of restoring spontaneous circulation.
- Evidence suggests thrombolysis may lead to better patient outcomes and improved neurological status in survivors.
- Available data do not support an increased risk of bleeding complications when thrombolysis is given during CPR.
Conclusions:
- Thrombolysis during CPR is a promising intervention for improving outcomes in cardiac arrest patients.
- The perceived risk of bleeding complications may be overstated, as current data show no significant increase.
- Further research, including large randomized trials, is crucial to confirm the efficacy and safety of this treatment.
Abstract:
Cardiac arrest carries a very poor prognosis. More than 70% of cardiac arrests are caused by acute myocardial infarction (AMI) or massive pulmonary embolism (PE). Thrombolysis during CPR has two major effects: first, it causally treats the condition that caused cardiac arrest and second, it has been shown to have beneficial effects on the microcirculatory cerebral reperfusion after cardiac arrest. However, this treatment has been widely withheld mainly because of the fear of severe bleeding complications. We reviewed the currently available in- and out-of-hospital studies on thrombolysis during CPR. Most studies found that thrombolytic therapy during CPR improves the chance for a restoration of spontaneous circulation in patients suffering from cardiac arrest and may even result in a better outcome. In addition, the neurological condition of surviving patients may be markedly improved by thrombolysis. Although thrombolytic therapy is associated with a risk of bleeding complications, currently available data do not suggest an increase of bleeding complications if thrombolysis is administered during CPR. Recently, a large randomized multicentre study has started to assess the efficacy and safety of thrombolysis during prehospital CPR.
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