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Platypnea-Orthodeoxia Syndrome Caused by an Intracardiac Shunt

Year: 2020

Type: article

Abstract: Platypnea-orthodeoxia syndrome, a rare condition characterized by posture-related dyspnea, is usually caused by an intracardiac shunt, hepatopulmonary syndrome, or shunting resulting from severe pulmonary disease. We report the case of a 33-year-old woman who presented with increasing dyspnea and oxygen desaturation when she sat up or arose. Our diagnosis was platypnea-orthodeoxia syndrome. A lead of a previously implanted pacemaker exacerbated a severe tricuspid regurgitant jet that was directed toward the patient's intra-atrial septum. Percutaneous closure of a small secundum atrial septal defect eliminated right-to-left shunting and substantially improved the patient's functional status. In addition to this case, we discuss this unusual condition.

Source: Texas Heart Institute Journal

DOI: 10.14503/thij-16-6094

Authors: Sanket P. Borgaonkar, Wilson W. Lam, Mehdi Razavi, Dhaval R. Parekh

Institution: Baylor College of Medicine

Language: English

Topic: Cardiovascular and Diving-Related Complications

Subfield: Pulmonary and Respiratory Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: diamond

OpenAlex ID: W3122561589

FWCI: 0.495

Cites: 12

Cited by: 4

Related to: 10