Diastolic Heart Failure in Patients with the Fontan Circulation: A Review

Werner Budts, William J. Ravekes, David A. Danford, Shelby Kutty

Research output: Contribution to journalReview article

Abstract

The Fontan circulation, accomplished by direct surgical connection of the vena cavae to the pulmonary arteries, can be an effective palliation for patients with a single ventricle. However, failure of the Fontan circulation can result from mechanical obstruction, cardiac arrhythmias, increasing pulmonary vascular resistance, or deteriorating ventricular performance. Although systolic ventricular failure can usually be identified by a combination of clinical signs, symptoms, and imaging findings, diastolic ventricular dysfunction is likely an underrecognized cause of Fontan failure. Methods for detection of impaired diastolic function in a single ventricle are evolving, and established techniques appropriate in the biventricular heart lack validation in single ventricle. Association of biomarkers, cardiac magnetic resonance, and echocardiographic findings with invasively acquired pressure-volume loop data in humans may offer a way forward to accurate, noninvasive diagnosis. Today, therapy for severe diastolic ventricular dysfunction in the Fontan circulation is often disappointing and may require consideration of a ventricular assist device or even cardiac transplant. Progress toward improved outcomes of the Fontan palliation likely depends on successful innovation in primary prevention strategies and the development of more effective pharmacotherapy.

Original languageEnglish (US)
Pages (from-to)590-597
Number of pages8
JournalJAMA Cardiology
Volume5
Issue number5
DOIs
StatePublished - May 2020

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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