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Updated: Jul 13, 2026

Prehospital Thrombolysis: A Manual from Berlin
Published on: November 26, 2013
Enhanced spontaneous thrombolysis: a new therapeutic challenge
I B Kovacs1, D A Gorog, J Yamamoto
1St. Bartholomew's Hospital Medical School, London, UK.
Insights
Reduced spontaneous thrombolysis, the body's clot-dissolving ability, is a neglected risk factor for heart attacks. A new test may identify at-risk individuals and guide treatments for coronary heart disease.
Area of Science:
- Cardiovascular Medicine
- Hematology
- Pharmacology
Background:
- Spontaneous thrombolysis is a key endogenous defense against arterial thrombotic occlusion, crucial in myocardial infarction and acute coronary events.
- Coronary heart disease (CHD) is increasingly preventable through novel therapies and lifestyle interventions, yet reduced fibrinolytic activity remains an underappreciated risk factor.
- Existing knowledge on the fibrinolytic effects of common CHD medications (antiplatelets, biguanides, antihypertensives) is limited and contradictory.
Purpose of the Study:
- To highlight the clinical significance of spontaneous thrombolysis in cardiovascular disease.
- To address the lack of a comprehensive assay for spontaneous thrombolysis.
- To explore the potential of a new measurement technique for spontaneous thrombolysis.
Main Methods:
- A recently developed technique enables the measurement of spontaneous thrombolysis.
- This method assesses the lysis of autologous platelet-rich thrombi without added plasminogen activators.
- It differs from traditional assessments of plasma or whole blood fibrinolysis.
Main Results:
- Early findings indicate the test's potential clinical utility.
- The assay may help identify individuals at risk for fatal cardiac events.
- It could also reveal new therapeutic strategies or lifestyle modifications to enhance spontaneous thrombolytic activity.
Conclusions:
- Reduced spontaneous thrombolytic activity is a significant, yet overlooked, risk factor for ischemic cardiovascular events.
- A novel assay for measuring spontaneous thrombolysis shows promise for clinical application.
- This test could aid in risk stratification and the development of novel treatments for coronary heart disease.
Abstract:
Spontaneous thrombolysis is an endogenous protective mechanism against lasting arterial thrombotic occlusion, which is implicated in the pathogenesis of myocardial infarction and acute coronary events. Novel therapies for coronary heart disease (CHD) targeting atherosclerosis and thrombosis, together with cardiovascular prevention programs targeting risk-factors and lifestyle provide evidence that CHD is preventable. Although reduced fibrinolytic activity is a recognized risk-factor for ischemic cardiovascular events, it has so far been neglected. Our knowledge of the fibrinolytic effect of drugs commonly used for CHD such as antiplatelet agents (aspirin, ticlopidine, clopidogrel), anti-diabetic biguanides (phenformin, metformin) or anti-hypertensive drugs is scanty and conflicting. This is mainly due to the lack of a global test of spontaneous thrombolysis, as opposed to fibrinolysis of plasma or whole blood, i.e. the assessment of various activators and inhibitors of the fibrinolytic system. A recently described technique allows the measurement of spontaneous thrombolysis, that is, lysis of an autologous platelet-rich thrombus in the absence of added plasminogen activators. Early results suggest that this test may have significant clinical potential both in identifying those at risk of fatal cardiac events and in finding new therapeutic avenues or lifestyles to improve spontaneous thrombolytic activity.
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