Abstract
Patent foramen ovale (PFO) is a remnant of the fetal circulation that remains in a
significant portion of the adult population, predisposing to a higher risk of stroke.
This risk is further elevated in the postoperative hypercoagulative period. Here we
present a case where a patient underwent a total knee arthroplasty and presented with
right-sided hemiparesis on post-operative day 2. Subsequently, the patient underwent
percutaneous PFO closure with a 25-mm Amplatzer PFO Occluder (Abbott; Chicago, IL,
USA). The patient has not had a stroke since the PFO closure. Recent randomized trials
have demonstrated superiority of percutaneous PFO closure over standard-of-care medical
therapy for secondary prevention of PFO-associated stroke. Since post-operative PFO-associated
stroke is under-recognized in clinical practice, further large-cohort studies are
needed to evaluate whether PFO screening and device closure would decrease post-operative
stroke risk for noncardiac surgeries.
Learning Objective
Patent foramen ovale (PFO) is a remnant of the fetal circulation commonly found in
the adult population, which can increase the risk of stroke. Stroke is a complication
of PFO, yet closure of this remnant only occurs on a specific case-by-case basis.
Further research in this area is required to determine whether a larger population
would benefit from PFO closure.
Keywords
Abbreviations:
PFO (Patent Foramen Ovale), CHD (Congenital Heart Defect), CI (Confidence Interval), NIHSS (US National Institutes of Health Stroke Scale), RA (Right atrium), RV (Right ventricle), LA (Left atrium), LV (Left ventricle)To read this article in full you will need to make a payment
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Article info
Publication history
Published online: November 29, 2022
Accepted:
November 7,
2022
Received in revised form:
October 27,
2022
Received:
August 4,
2022
Identification
Copyright
© 2022 Japanese College of Cardiology. Published by Elsevier Ltd. All rights reserved. All rights reserved.