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Paradoxical emboli

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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A paradoxical embolus is a venous embolus which has gained access to the left side of the circulation without passage through the pulmonary circulation.

The majority arise from pelvic and leg veins in association with:

  • right-to-left cardiac shunts
  • pulmonary arteriovenous fistulas

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