Worsening Hypoxemia in a Patient With Interstitial Pulmonary Fibrosis: Role of Patent Foramen Ovale Mediated Right‐to‐Left Shunt

Sonography 2026 Open access

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Authors: Wan Cheol Kim, Wael Sumaya, Malek Kass, Osama Essam ElKhateeb, Ashish H. Shah
DOI: 10.1002/sono.70041
Cited by: 0
References: 2

Abstract

ABSTRACT PFO mediated right‐to‐left shunt was found to be responsible for worsening exertional hypoxemia in an elderly patient with interstitial pulmonary fibrosis. Transcatheter PFO closure resolved the hypoxemia. This case highlights the need to evaluate intracardiac shunts in hypoxic patients, even with coexisting pulmonary pathology.

Fields of Study & Subjects

Cardiovascular and Diving-Related Complications Congenital Heart Disease Studies Pulmonary Hypertension Research and Treatments

Publication details

Journal / source
Sonography
Volume
13
Issue
1
Publication date
10 February 2026
Language
EN