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Paradoxical embolism through a patent foramen ovale
H Vanoverbeke1, J Vanoverbeke, G Van der Tempel
1Department of Cardiovascular Surgery, ASZ, Aalst, Belgium.
Acta Chirurgica Belgica
|February 11, 1998
Summary
Paradoxical embolism (PDE), often caused by silent venous thrombosis and patent foramen ovale, may frequently lead to ischemic stroke. Early diagnosis via contrast echocardiography and anticoagulation therapy are crucial for managing this condition.
Area of Science:
- Cardiology
- Neurology
- Vascular Medicine
Background:
- Venous thrombosis is common and often asymptomatic.
- Patent foramen ovale (PFO) affects a significant portion of the population.
- Paradoxical embolism (PDE) is an underrecognized cause of thromboembolic events.
Observation:
- A case of ante-mortem diagnosed paradoxical embolism is presented.
- Literature review supports the potential for PDE in ischemic stroke and peripheral occlusion.
- High prevalence of silent venous thrombosis and PFO suggests increased PDE risk.
Findings:
- Contrast echocardiography with provocative maneuvers is the key diagnostic tool for PDE.
- Anticoagulation therapy is the primary treatment for paradoxical embolism.
- PDE may be a more frequent cause of ischemic stroke than currently believed.
Implications:
- Increased awareness and diagnostic utilization of contrast echocardiography for suspected PDE.
- Timely anticoagulation can prevent recurrent embolic events.
- Further research into the prevalence and management of PDE is warranted.