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Intraoperative hypoxemia and dynamic right-to-left shunting across a patent foramen ovale diagnosed by TEE
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  • Cameron Sumner,
  • William Manson,
  • John McNeil,
  • Karen Singh
Cameron Sumner
University of Virginia Health System

Corresponding Author:[email protected]

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William Manson
University of Virginia Health System
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John McNeil
University of Virginia
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Karen Singh
University of Virginia Health System
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Abstract

The images presented highlight the degree of dynamic right-to-left shunt (RTLS) across a typical patent foramen ovale (PFO) that is possible with suboptimal changes in ventilation and oxygenation that may occur under anesthesia or in the intensive care setting. In this case, a large RTLS across a PFO contributed to significant persistent hypoxemia, and the echocardiography exam was necessary for diagnosis, aggressive treatment, and complete resolution of the pathology.