Impending paradoxical embolism. 1998

R R Meacham, and A S Headley, and M S Bronze, and J B Lewis, and M M Rester
University of Tennessee-Memphis Lung Research Program and the Division of General Internal Medicine, USA.

The advent of echocardiography has led to the more frequent discovery of impending paradoxical embolism. Paradoxical embolism should be considered whenever there is an arterial embolism from an unidentified source in the presence of a concomitant venous thromboembolic phenomenon. Patients with paradoxical embolism present with neurological abnormalities or features suggesting arterial embolism. Annually, paradoxical embolism may account for up to 47,000 strokes in the United States, and a patent foramen ovale has been reported in up to 35% of the normal population. Events that give rise to pulmonary hypertension may result in a right-to-left shunt through a patent foramen ovale allowing a venous thromboembolism access to the arterial circulation. Herein we report a case of impending paradoxical embolism and review the pertinent literature.

UI MeSH Term Description Entries
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D003937 Diagnosis, Differential Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures. Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D005260 Female Females
D006344 Heart Septal Defects, Atrial Developmental abnormalities in any portion of the ATRIAL SEPTUM resulting in abnormal communications between the two upper chambers of the heart. Classification of atrial septal defects is based on location of the communication and types of incomplete fusion of atrial septa with the ENDOCARDIAL CUSHIONS in the fetal heart. They include ostium primum, ostium secundum, sinus venosus, and coronary sinus defects. Atrial Septal Defects,Ostium Primum Atrial Septal Defect,Persistent Ostium Primum,Atrial Septal Defect,Atrial Septal Defect Ostium Primum,Ostium Secundum Atrial Septal Defect,Defect, Atrial Septal,Ostium Primum, Persistent,Primum, Persistent Ostium,Septal Defect, Atrial
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D017548 Echocardiography, Transesophageal Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the esophagus. Transesophageal Echocardiography
D019320 Embolism, Paradoxical Blockage of an artery due to passage of a clot (THROMBUS) from a systemic vein to a systemic artery without its passing through the lung which acts as a filter to remove blood clots from entering the arterial circulation. Paradoxical embolism occurs when there is a defect that allows a clot to cross directly from the right to the left side of the heart as in the cases of ATRIAL SEPTAL DEFECTS or open FORAMEN OVALE. Once in the arterial circulation, a clot can travel to the brain, block an artery, and cause a STROKE. Crossed Embolism,Paradoxical Embolism,Crossed Embolisms,Embolism, Crossed,Embolisms, Crossed,Embolisms, Paradoxical,Paradoxical Embolisms

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