What is the role of echocardiography in the workup of antithrombin III (ATIII) deficiency?

Updated: Mar 04, 2020
  • Author: James L Harper, MD; Chief Editor: Hassan M Yaish, MD  more...
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This should be performed in all patients with antithrombin III deficiency, especially if they have evidence of arterial thrombus.

Arterial thrombosis due to antithrombin III deficiency is uncommon.

Venous clots may migrate to arterial circulation through a patent foramen ovale or other communicating congenital heart defect (eg, atrial septal defect, ventricular septal defect, truncus arteriosus).

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