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Visual Diagnosis in Emergency Medicine| Volume 48, ISSUE 4, P466-467, April 2015

Impending Paradoxical Embolus

      A 60-year-old woman with breast cancer with brain and bone metastases presented to the emergency department with complaints of cough, progressive dyspnea, and hemoptysis. Initial vitals signs revealed a heart rate of 80 beats/min, respiratory rate of 26 breaths/min, blood pressure of 120/80 mm Hg, and room air pulse oxygenation of 88%. The patient also noted pain and swelling in her right lower extremity. When measured, the right lower extremity had a 4 cm greater diameter compared to the left. Because of the leg swelling, dyspnea, tachypnea, and an electrocardiogram (ECG) showing right heart strain, a transthoracic echocardiogram was performed at the bedside to evaluate for possible pulmonary embolism (Figure 1, Figure 2, Video 1).
      Figure thumbnail gr1
      Figure 1(A) Apical four-chamber view demonstrating thrombus (arrows) in the right and left atria crossing the inter-atrial septum through the patent foramen ovale during systole. (B) Apical four-chamber view demonstrating thrombus (arrows) in the right and left atria crossing the inter-atrial septum through the patent foramen ovale during diastole.
      Figure thumbnail gr2
      Figure 2Apical four-chamber view showing the patent foramen ovale (arrow).
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