First experience with andraStent XL implantation in children and adolescents with congenital heart diseases

Venczelova, Zuzana; Tittel, Peter; Mašura, Jozef

doi:10.1002/ccd.24505

Cited by 14 publications

(11 citation statements)

References 15 publications

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“…This series documents that this is a versatile stent family, which can be used for indications ranging from ductal stenting in a neonate to coarctation stenting in a teenager. The immediate results and complication rate are comparable with previous published series in the literature using different stent designs in patients with congenital heart disease .…”

Section: Discussionsupporting

confidence: 83%

“…Thus, most pediatric cardiologists have looked at using stents initially designed for biliary or renal work. Such stents have nominal diameters of 5–10(12) mm and potentially can be dilated further . Ex vivo bench testing, in particular to look at shortening characteristics of these stents during over dilation has been pioneered by Ing and Stern .…”

Section: Introductionmentioning

confidence: 99%

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Initial experience with the cook formula balloon expandable stent in congenital heart disease

Quandt

Ramchandani

Bhole

et al. 2014

Cathet Cardio Intervent

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Introduction: Balloon expandable stents are an integral part in the catheter treatment of congenital heart disease. In the growing child, stents require dilatation to greater diameters over time. The Cook Formula stent is a recent 316 stainless steel open-cell design licensed for peripheral vascular work. Methods: Following extensive ex vivo studies, 112 stents were implanted in 97 children [median age 3.9 (0.01-17.6) years; median weight 13.7 (2.4-62.8) kg] over a 27-month (Oct 2011-Dec 2013) period. Results: Bench testing revealed that there was no stent shortening for dilatation to nominal diameter and beyond. The 5 mm stents could be dilated up to 10 mm, and the 10 mm stents to 20 mm. Stents were implanted through 4-7F sheaths or guide catheters over appropriate wires. Stent tracking and delivery was excellent. Twenty-three stents were implanted in the right ventricular outflow tract in Fallot-type lesions, 53 for branch pulmonary artery stenosis (22 post cavopulmonary shunt/Fontan), 14 conduit stenosis, 13 Fontan fenestrations, 3 PDA in hybrid stage I Norwood, 5 in coarctation, and 1 for SVC obstruction. Sixty-one stents (54%) were overdilated. There were no stent fractures. Radial strength was very good, whereas stent conformability was limited. Conclusions: The Cook Formula stent is a premounted balloon-expandable stent that can be significantly overdilated with virtually no shortening allowing for precise placement and minimal protrusion into adjacent vessels. The Formula stent is a very versatile addition to the range of stents for use in the catheter treatment of complex congenital heart disease in children. V C 2014 Wiley Periodicals, Inc.

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Section: Discussionsupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Initial experience with the cook formula balloon expandable stent in congenital heart disease

Quandt

Ramchandani

Bhole

et al. 2014

Cathet Cardio Intervent

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“…Extremly tortous course of stenotic MAPCA could have been the reason for complete rupture of 1 stent in 6 months follow-up. Chest X-ray, CT-angiography and fl uorscopy could distinguish this complication (6). Successful implantation of 30XL Andrastent into fractured parts of previously implanted PG stent was performed consequently.…”

Section: Discussionmentioning

confidence: 99%

Stenting of stenotic aortopulmonary collaterals in non-surgically treated adolescent or adult patients with pulmonary atresia, ventricular septal defect and multiple aortopulmonary collaterals

Olejník¹,

Tittel²,

Venczelova³

et al. 2016

BLL

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OBJECTIVES: To present our experience with stent implantations in non-surgically treated patients with pulmonary atresia, ventricular septal defect and stenotic aortopulmonary collaterals. METHODS: Between April 2007 and June 2009, 6 stents in 4 patients were implanted into stenosed segments of MAPCAs. The median age and weight of patients at stent implantation were 24 years (range 13-34 years) and 58.5 kg (range 56-70 kg), respectively. RESULTS: All implantations were successfully performed; there were no procedure associated complications. The median diameter increase of stenosed MAPCAs was 107 %. The mean arterial blood saturation increased from mean 78 % to 84 %. An early increase in the median exercise duration measured by 6MWT was 36 %. Neointimal in-stent fi broproliferation in 4/6 stents and stent fracture in 1/6 patients occured in mid-term follow-up. CONCLUSION: Percutaneous catheterizational stent implantation into stenosed segments of MAPCAs is a palliative procedure, that might improve quality of life of non-surgically treated patients with PA, VSD, MAPCAs. Neointimal in-stent fi broproliferation and stent fracture can be expected as complications in mid-term follow-up. CT-angiography is recommended to confi rm these complications in progressive satO 2 decrease (Fig. 3, Ref. 12). Text in PDF www.elis.sk.

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“…A prospective multicentre trial involving 105 patients showed that the Cheatham Platinum stent is safe and effective [ 13 ]. Data on the safety and effectiveness of off-label stents are absent or limited to small retrospective studies [ 11 , 15 – 17 ]. The choice to implant a specific type of stent relies on clinical and anatomical characteristics of the patients such as age, diameter of the aorta and of the stricture, previous operations/interventions, site of the lesion and anatomy of adjacent aorta and aortic branches [ 18 ].…”

Section: Discussionmentioning

confidence: 99%

Computed tomography image quality of aortic stents in patients with aortic coarctation: a multicentre evaluation

et al. 2018

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BackgroundStents are commonly used to treat aortic coarctation. The objective of this study was to evaluate the post-implantation computed tomography (CT) image quality of different stent types used to treat aortic coarctation.MethodsAdult and paediatric patients with stent-treated aortic coarctation who underwent contrast-enhanced CT were retrospectively included from three tertiary care centres. CT scans were subjectively scored for image quality using a 4-point scale (1 = unacceptable; 2 = poor; 3 = good; 4 = excellent). Furthermore, the amount of stent-induced blooming artefacts was measured as the percentage of the difference between outer and inner stent diameters over the outer stent diameter.ResultsA total of 35 children and 34 adults implanted with 71 stents of six different types were included. The most commonly used stent type was the Cheatham Platinum stent (52 stents, 73%). The subjective image quality of the Cheatham Platinum stents was moderate with a score of 2.0±0.8 (mean ± standard deviation) in children and 2.3±0.6 in adults. The image quality in patients with Formula stents was 2.3±1.2. The Cheatham Platinum stents induced 34–48% blooming, the Formula stents 44–55%. The image quality in patients with the less commonly used Atrium Advanta V12, IntraStent, AndraStent and Palmaz stents was scored 3 (good) to 4 (excellent) with less blooming. The electrocardiographic gating and tube voltage (kVp) did not affect image quality.ConclusionsThere is a substantial variation in CT image quality and blooming artefacts for different stent types used to treat aortic coarctation.

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First experience with andraStent XL implantation in children and adolescents with congenital heart diseases

Abstract: Our initial results show that AndraStents are implantable and efficacious in different vascular stenoses and present a valuable alternative to the available large stents. With the application of a modified front-loading technique, they can also be implanted in smaller children.

Cited by 14 publications

References 15 publications

Initial experience with the cook formula balloon expandable stent in congenital heart disease

Initial experience with the cook formula balloon expandable stent in congenital heart disease

Stenting of stenotic aortopulmonary collaterals in non-surgically treated adolescent or adult patients with pulmonary atresia, ventricular septal defect and multiple aortopulmonary collaterals

Computed tomography image quality of aortic stents in patients with aortic coarctation: a multicentre evaluation

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