Platynpnea-Orthodeoxia Syndrome Following Abdominal Surgery

64-year-old Caucasian male hospitalized for surgical management of sigmoid colon adenocarcinoma developed acute hypoxic respiratory failure immediately post-operatively. Noted to have a large patent foramen ovale (PFO) on echocardiogram with continuous right-to-left shunting and aneurysmal interatrial septum with leftward bowing.

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All authors: Andrew M.Goldsweig, MD, MS, FSCAI; Scott M. Mawer, DO, MS; David T. Shin, DO, MS; and Kristen N. Brown, MD.

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