Re-expansion of balloon-expandable stents after growth

Morrow, W. Robert; Palmaz, Julio C.; Tio, Fermin O.; Ehler, William J.; VanDellen, A F; Mullins, Charles E.

doi:10.1016/0735-1097(93)90791-x

Cited by 102 publications

(38 citation statements)

References 15 publications

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“…Experimental studies have shown that stents implanted in the aorta become incorporated within the aortic wall and can be further expanded in growing animals [15,16]. More recently, several clinical studies have shown excellent immediate results in children and young adults with severe coarctation of the aorta [17][18][19].…”

Section: Introductionmentioning

confidence: 98%

Stenting of coarctation of the aorta

Cheatham

2001

Cathet Cardio Intervent

148

132

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The purpose of the present study was to assess the usefulness of balloon expandable Palmaz intravascular stents in the transcatheter treatment of children and young adults with native and recurrent coarctation of the aorta, and to develop an improved intravascular stent and balloon delivery catheter specifically developed for vascular obstructions associated with congenital heart disease, including coarctation of the aorta. Twenty-one patients, 8 native and 13 recurrent coarctations, were successfully treated with the Palmaz stent. However, limitations and disadvantages in stent design and the single balloon delivery system were uncovered. Therefore, the NuMED CP stent and BIB delivery catheter were developed and used to treat 25 patients with native (17) and recurrent (8) coarctation successfully. Improvements in stent design and long-term follow-up using three-dimensional spiral CT scan will be helpful in determining the role of transcatheter stent therapy for native and recurrent coarctation of the aorta. Cathet Cardiovasc Intervent 2001;54:112-125.

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Section: Introductionmentioning

confidence: 98%

Stenting of coarctation of the aorta

Cheatham

2001

Cathet Cardio Intervent

148

132

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“…Despite reasonably good short and long term results [74], some issues, such as restenosis, inability to address long, tubular coarctations, vessel rupture, and aneurysm formation, still remain. In addition, experimental work in animal models (75)(76)(77)(78)(79)(80)(81) has demonstrated feasibility and utility of stents in the management of coarctation. Consequently, stent therapy of coarctation has gained acceptance over the last two decades [15,50,.…”

Section: Coarctation Of the Aortamentioning

confidence: 99%

Transcatheter Stent Therapy in Children: An Update

Sahu

Rao²

2012

Pediat Therapeut

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To address elastic recoil of vessel wall and intimal dissection that can follow balloon angioplasty, stents have been designed and these appear to produce more effective relief of obstruction. Of the two types of stents, namely, balloon expandable and self expandable, balloon expandable stents are most commonly used in children. The usefulness of stents in the management of vascular obstructive lesions not amenable to balloon angioplasty is well established and has been successfully used to treat branch pulmonary artery stenosis, coarctation of the aorta, stenotic right ventricular outflow tract conduits, obstructive lesions of the systemic and pulmonary veins and others. The techniques of implantation, indications, immediate and follow-up results and complications were reviewed. The stents have also been effectively used in keeping open naturally occurring or artificially created inter-circulatory connections and as adjuncts in hybrid procedures, but these have not been discussed in this review. Future directions include investigative work on biodegradable stents and growth stents to address issues related to increase in vessel size in infants and children, use of drug eluding stents to prevent neo-intimal proliferation to avoid pulmonary vein restenosis and refinement of stent technology in hybrid procedures such as neonatal palliation of hypoplastic left heart syndrome and transcatheter completion of Fontan procedure. The feasibility, safety and effectiveness stents in the pediatric population are demonstrated, although scrutiny of results of larger experience with longer follow-up is important.

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“…To address this question, Morrow et al [94] implanted stents in the aorta of growing swine and demonstrated the feasibility of reexpansion without significant injury to the neointima, the media, or adventitia. In an animal study, Mendelsohn et al [89] described aortic rupture after stent redilation in 2 of 7 animals.…”

Section: Endovascular Stenting and Coamentioning

confidence: 98%