Tracy GP, Smulyan H, Potts JL, Eich RH, Johnson LW. Cine angiographic diagnosis of patent foramen ovale in paradoxical embolism,.
Cathet Cardiovasc Diagn 1976;
2:137-42. [PMID:
954070 DOI:
10.1002/ccd.1810020205]
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Abstract
A case of paradoxical embolism is presented in which the antemortem diagnosis was facilitated by a new simple angiographic technique that demonstrated a patent foramen ovale. An additional 14 patients were studied by this technique, and one had a patent foramen ovale. The mechanism of reversal of the normal intraatrial pressure gradient and subsequent right to left shunt through a patent foramen ovale is discussed. This angiographic technique may be readily applied in any diagnostic catheterization laboratory and complements existing methods for detecting patency of the foramen ovale in patients with suspected paradoxidal embolism.
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