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Patent Foramen Ovale or Pulmonary Arteriovenous Malformation : An Appeal for Diagnostic Accuracy

Leon J. Frazin, MD
Author and Funding Information

Affiliations: Chicago, IL ,  Dr. Frazin is Director of Echocardiography Laboratories at Sts. Mary and Elizabeth Hospitals and Jesse Brown VA Hospital; and Associate Professor of Clinical Medicine, University of Illinois, Chicago, IL.

Correspondence to: Leon J. Frazin, MD, Jesse Brown VA Hospital, 820 S Damen, Chicago, IL 60612; e-mail: LFrazin@aol.com



Chest. 2007;132(1):5-6. doi:10.1378/chest.07-0577
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Extract

There are life-threatening complications caused by abnormal venous-to-arterial communications. These may be intracardiac, such as seen in a ventricular septal defect, atrial septal defect, or patent foramen ovale (PFO). Pulmonary arteriovenous malformation (PAVM) is an extracardiac cause of an abnormal communication.

Complications resulting from such abnormalities include cerebrovascular accidents, transient cerebral ischemic events, and cerebral abscesses. PAVM complications include the above complications plus hemoptysis and hemothorax.

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