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Updated: Feb 10, 2026

Fabrication of Small Caliber Stent-grafts Using Electrospinning and Balloon Expandable Bare Metal Stents
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Balloon-expandable stents for recoarctation of the aorta in small children. Two centre experience

K Gendera1, P Ewert1, D Tanase1

  • 1Department of Pediatric Cardiology and Congenital Heart Disease, German Heart Center Munich, Technische Universität München, Germany.

International Journal of Cardiology
|May 15, 2018
PubMed

Insights

Stent implantation is a successful treatment for very young patients with aortic coarctation (CoA) and re-coarctation (re-CoA), showing immediate hemodynamic improvement. Further interventions may be needed for aortic growth.

Area of Science:

  • Cardiology
  • Pediatric Cardiology
  • Interventional Cardiology

Background:

  • Surgery is the primary treatment for native aortic coarctation (CoA) in children.
  • Re-coarctation (re-CoA) surgery carries higher risks, and some native CoA cases have surgical contraindications.
  • This study evaluates stent implantation for these challenging pediatric cases.

Purpose of the Study:

  • To assess the efficacy and safety of percutaneous stent implantation in very young patients with native aortic coarctation and re-coarctation.
  • To evaluate the immediate hemodynamic outcomes and complications associated with the procedure.

Main Methods:

  • A total of 34 patients (median age 6.5 months, median weight 6.2 kg) underwent stent implantation between 2006 and 2017.
  • Patients included those with re-CoA (31) and native CoA (3) with surgical contraindications.
  • Balloon-expandable stents were used, with inclusion criteria of age < 3 years and weight < 16 kg.

Main Results:

  • All procedures were technically successful, with a significant reduction in the peak systolic pressure gradient (31 to 0 mmHg, p < 0.001).
  • The minimal diameter of the aorta significantly increased (3 mm to 7 mm, p < 0.001).
  • No serious complications occurred; however, 29% required re-dilatation and 6% needed re-stenting during a median follow-up of 12.5 months.

Conclusions:

  • Percutaneous stent implantation is a viable and successful option for very young patients with re-CoA and selected native CoA cases.
  • The procedure yields good immediate hemodynamic results, but requires ongoing management for aortic growth.
  • Further interventions like re-dilatation and re-stenting are necessary to achieve adult aortic dimensions.
Abstract

Keywords:
Aortic coarctationBare metal stentCongenital heart diseasesHypoplastic left heart syndrome

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