paradoxical embolus


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paradoxical embolus

An EMBOLUS arising in a vein which is able to reach the general (systemic) arterial circulation by passing through a defect in the inner wall of the heart, such as a PERSISTENT FORAMEN OVALE, to reach the left side.
References in periodicals archive ?
A cryptogenic stroke in the context of a PFO is thought to be caused by a transient right-to-left shunt, enabling development of a paradoxical embolus.
If there is a defect in the heart wall separating the top two chambers of the heart, a transvenous (through the vein) extraction can result in a clot, called a paradoxical embolus, that passes from the veins to the arteries and travels to the brain, possibly causing a stroke.
In 1958, Gill and Dammin[14] reported a case of renal failure caused by a paradoxical embolus through a patent foramen ovale.