Bosentan Improves Exercise Capacity in Adolescents and Adults After Fontan Operation: The TEMPO (Treatment With Endothelin Receptor Antagonist in Fontan Patients, a Randomized, Placebo-Controlled, Double-Blind Study Measuring Peak Oxygen Consumption) Study.

Anders Hebert, Ulla R Mikkelsen, Ulf Thilén, Lars Idorn, Annette S Jensen, Edit Nagy, Katarina Hanséus, Keld E Sørensen, Lars Søndergaard

Research output: Contribution to journalArticlepeer-review

Abstract

The Fontan procedure has improved survival in children with functionally univentricular hearts. With time, however, complications such as reduced exercise capacity are seen more frequently. Exercise intolerance is multifactorial, but pulmonary vascular resistance probably plays a crucial role. Elevated pulmonary vascular resistance has been associated with raised levels of endothelin-1, which are common both before and after Fontan operations. Treatment with endothelin-1 receptor antagonists could theoretically improve cardiopulmonary hemodynamics and exercise capacity. The aim of this study was therefore to examine the efficacy and safety of bosentan in Fontan patients.
Original languageEnglish
Pages (from-to)2021-2030
JournalCirculation
Volume130
Issue number23
DOIs
Publication statusPublished - 2014

Subject classification (UKÄ)

  • Cardiology and Cardiovascular Disease

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