• Revista médica de Chile · Feb 2020

    Case Reports

    [Recurrent hypoxemia secondary to a patent foramen ovale. Report of one case].

    • Franco Appiani, Polentzi Uriarte, Rosario Fernández, Víctor Parra, and Fernando Pineda.
    • aff1, Chile.
    • Rev Med Chil. 2020 Feb 1; 148 (2): 263-267.

    AbstractPatent foramen ovale (PFO) is a prevalent congenital septal atrial defect usually without pathological significance. In certain pathogenic situations, PFO can trigger episodes of recurrent hypoxemia, a specific condition known as platipnea-orthodeoxia syndrome (POS). We report a 73 years old female presenting with dyspnea and low arterial oxygen saturation. On admission the patient had a hemoglobin saturation of 81% and an arterial oxygen partial pressure of 50 mmHg. After breathing 100% a 17% arterial-venous shunt was found (normal: less than 12%). A transesophageal echocardiogram and a cardiac catheterization showed the presence of a PFO. A percutaneous closure was performed.

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