Platypnea-orthodeoxia Syndrome Diagnosed Using Contrast Transesophageal Echocardiography with Simultaneous SpO2 Monitoring

• Published in: Internal Medicine Vol. 55; no. 16; pp. 2203 - 2207
• Main Authors: Sekihara, Takayuki, Kimura, Masahiro, Hazama, Daisuke, Kimura, Yuki, Hayashi, Hideyuki, Okano, Mitsumasa, Funasako, Moritoshi, Sasaki, Kenichi, Nakane, Eisaku, Miyamoto, Shoichi, Izumi, Toshiaki, Haruna, Tetsuya, Fukui, Motonari, Inoko, Moriaki
• Format: Journal Article
• Language: English
• Published: Japan The Japanese Society of Internal Medicine 2016
• Subjects: Aged; contrast echocardiography; Dyspnea - diagnosis; Echocardiography, Transesophageal; Female; Heart Diseases - diagnosis; Heart Diseases - diagnostic imaging; Humans; Oxygen - blood; platypnea-orthodeoxia syndrome; Posture; Syndrome; transesophageal echocardiography

Platypnea-orthodeoxia syndrome (POS) is a rare condition characterized by interatrial right-to-left shunting that is exacerbated in the upright position. We herein report a 78-year-old woman with POS that remained undiagnosed for 2 years, despite repetitive transthoracic echocardiography (TTE). POS...