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. 2014 Jun 26:15:275-9.
doi: 10.12659/AJCR.890455. eCollection 2014.

The role of the new Valeo stent in treating pulmonary artery stenoses in children with complex cardiac malformations: A report of two cases

Nikhil Sharma  1 , Sebastian Goreczny  1
Affiliations

The role of the new Valeo stent in treating pulmonary artery stenoses in children with complex cardiac malformations: A report of two cases

Nikhil Sharma et al. Am J Case Rep. .

Abstract

Case series Patient: -

Final diagnosis: Pulmonary artery stenosis Symptoms: -

Medication: - Clinical Procedure: - Specialty: -

Objective: Congenital defects/diseases • Unusual or unexpected effect of treatment.

Background: The decision of which stent can be used for treating a congenital heart lesion can be difficult for a pediatric interventional cardiologist. Features of an ideal stent would be to have a low profile to enable small sheaths to be fitted and allow for advancement. It would need to be flexible to negotiate curves of arteries and have sufficient radial strength to prevent recoil of the lesion and vessel. It should have high trackability and wide struts to enable junctional artery flow and prevention of thrombosis and toxic adverse effects from the stent.

Case reports: Much work is being carried out to design the ideal stent and provide the best treatment for congenital heart lesions. We investigated this matter with the use of the Valeo stent in 2 patients. The Valeo stent is a new premounted stent with several advantages for use in children with complex cardiac conditions. We investigated the Valeo stent's ability to navigate tortuous cardiac anatomy and maintain junctional artery blood flow. In addition, the stents have sufficient radial strength to provide long-term support to the large pulmonary arteries involved.

Conclusions: The new open-design, premounted, stainless steel Valeo stent has been shown to be useful in treating pulmonary artery stenosis and in young children when catheterization is a less popular choice in comparison to balloon angioplasty. In addition to previous use of Valeo stents in coarctation of the aorta, we have shown the benefits of the stent for pulmonary artery stenosis.

Keywords: Stents – standards; Stents – supply & distribution; Stents – utilization.

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Figures

Figure 1.
Figure 1.
Diagram showing narrowed LPA with proximal diameter of 4.53 mm (×3), distal diameter of 8.52 mm (×1).
Figure 2.
Figure 2.
Diagram showing stent placement over LPA stenosis via catheter.
Figure 3.
Figure 3.
Diagram showing stent inflation.
Figure 4.
Figure 4.
Diagram showing stent after full inflation.
Figure 5.
Figure 5.
Diagram showing LPA stenosis resolved after stent insertion via contrast.
Figure 6.
Figure 6.
Diagram showing RPA long tubular stenosis with proximal narrowing and distal narrowing.
Figure 7.
Figure 7.
Diagram showing RPA proximal narrowing of 3.57 mm (×1) and distal narrowing of 5.63 mm (×2).
Figure 8.
Figure 8.
Diagram showing stent placement over narrowing.
Figure 9.
Figure 9.
Diagram showing stent inflation process.
Figure 10.
Figure 10.
Diagram showing full stent inflation with preservation of the proximal branch artery near the RPA in the fontan patient.
See this image and copyright information in PMC

References

    1. Forbes TJ, Rodriguez-Cruz E, Amin Z, et al. The Genesis stent: A new low-profile stent for use in children, children, and adults with congenital heart disease. Catheter Cardiovasc Interv. 2003;59:406–14. - PubMed
    1. Stern HJ, Baird CW. A Premounted Stent that can be Implanted in Children and Re-Dilated to 20 mm: Introducing the Edwards Valeo Lifestent. Catheter Cardiovasc Intervent. 2009;74:905–12. - PubMed
    1. Peters B, Ewert P, Berger F. The role of stents in the treatment of congenital heart disease: Current status and future perspectives. Ann Pediatr Cardiol. 2009;2(1):3–23. - PMC - PubMed
    1. Rashkind WJ, Miller WW. Creation of an atrial septal defect without thoracotomy. A palliative approach to complete transposition of the great arteries. JAMA. 1966;196:991–92. - PubMed
    1. Shepherd E, Connolly GM, Morgan G. Using the Valeo dilatable stent in coarctation stenting for small children: expanding the inclusion criteria for coarctation stenting? BMJ Case Rep. 2013;pii bcr2013202095. - PMC - PubMed

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