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Study identifier: NCT05386173 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Effect of Fetal Aortic Valvuloplasty on Outcomes

Condition: Congenital Heart Disease · Aortic Valve Stenosis · Fetal Cardiac Disorder  ·  Sponsor: Queen Silvia Children's Hospital, Gothenburg, Sweden

PhaseN/A
Planned participants200
Who can joinAll sexes, 23 Weeks to 31 Weeks
Healthy volunteersNo

About this study

In one of the most severe congenital heart defects, hypoplastic left heart syndrome (HLHS), the left ventricle is underdeveloped and the prognosis is worse than in most other heart defects. The underdevelopment can occur gradually during fetal growth caused by a narrowing of the aortic valve. At some international centers, such fetuses are treated with a balloon dilation of the narrowed valve, but there is no scientifically sound evidence that this treatment is effective. The aim of this study is: 1/ to evaluate whether balloon dilation during the fetal period of a narrowed aortic valve can reduce the risk of the left ventricle becoming underdeveloped and the baby being born with a so-called univentricular heart (HLHS); 2/ to investigate whether such treatment improves the prognosis for this group of children with a very complex and severe heart defect and 3/ to also describe side effects and risks in fetuses and mothers of the fetal procedure.

This description comes directly from the study's public registry record.

Talk to the study team

Mats Mellander, Dr, Prof  ·  0046705530606  ·  mats.mellander@vgregion.se

Annika Öhman, Dr, PhD  ·  0046313434568  ·  annika.ohman@vgregion.se

Always discuss trial participation with your own doctor first.

Locations (13)

Fetal Cardiovascular Program, University of California San FranciscoSan Francisco, California, United StatesRecruiting
Congenital Heart Collaborative, Nationwide Children's HospitalColumbus, Ohio, United StatesRecruiting
Kinderherzzentrum LinzLinz, AustriaRecruiting
The Hospital for Sick Children TorontoToronto, CanadaRecruiting
Department of Paediatric Cardiology, Helsinki University Children's HospitalHelsinki, FinlandRecruiting
Pediatric Cardiology - University Hospital BonnBonn, GermanyRecruiting
Department of Pediatric and Congenital Cardiology, University of HeidelbergHeidelberg, GermanyRecruiting
University hospital Technical university, mother- and-child centerMunich, GermanyRecruiting
Department of Perinatal Cardiology and Congenital Anomalies, Centre of Postgraduate Medical Education.Warsaw, PolandRecruiting
Fetal Medicine Unit, Dept. Obstetrics & Gynecology University Hospital 12 de OctubreMadrid, SpainRecruiting
Department of Pediatric Cardiology, Skane University HospitalLund, SwedenRecruiting
Department of pediatric cardiology, Karolinska InstituteStockholm, SwedenRecruiting

+ 1 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT05386173