What question did this study set out to answer?

The aim is to describe a rare presentation of platypnea-orthodeoxia syndrome triggered by small bowel obstruction.

March 18, 2026Open Access

Platypnea-Orthodeoxia Syndrome Provoked by Small Bowel Obstruction

Key Points

The aim is to describe a rare presentation of platypnea-orthodeoxia syndrome triggered by small bowel obstruction.
Case report detailing patient symptoms and clinical history.
Assessment of positional changes and resulting oxygen levels.
Evaluation of possible anatomical defects and shunting mechanisms.
Patient exhibited dyspnea and hypoxemia upon standing after small bowel obstruction was noted.
Primary anatomical defect was identified, contributing to increased right-to-left shunting.
Severe hypoxemia highlighted the functional impact of positional changes.

Abstract

Platypnea-orthodeoxia syndrome (POS) is a rare condition in which positional change from recumbent to upright causes dyspnea and hypoxemia due to a cardiac or pulmonary shunt. Most cases require a primary anatomic defect and a secondary anatomic or functional factor that increases right-to-left shunting.

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Discussion

Authors

Mariel Sullivan

Jay Vance

Prospero Gogo

Journals

JACC Case Reports

Actions

Institutions

University of Vermont Medical Center

References and Citations

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Building similarity graph...

Analyzing shared references across papers

Platypnea-Orthodeoxia Syndrome Provoked by Small Bowel Obstruction

Key Points

Abstract

Citation Network

Connected Papers

Discussion

Authors

Journals

Actions

Institutions

References and Citations

Citation Network

Connected Papers

Discussion

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