A nine-year-old girl with complex cyanotic heart disease associated with supracardiac total anomalous venous return and obstruction at the drainage site of the vertical vein into the left innominate vein had stent placement at the age of seven, with immediate increase of oxygen saturation and improvement of physical activity. Significant in-stent stenosis occurred that was successfully treated by concentrical placement of a second stent. This case report demonstrates the transluminal approach to be effective in the treatment of stenoses in congenital heart defects that are not eligible for corrective surgery.
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http://dx.doi.org/10.1007/s00246-001-0053-8 | DOI Listing |
Int J Surg Case Rep
January 2025
Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran. Electronic address:
Introduction: Coarctation of the aorta is a congenital narrowing of the thoracic aorta associated with hypertension and significant pressure gradients across the coarctation site. Coarctoplasty by percutaneous approach is the preferred method of treatment. However, complications like stent dislodgement may result and must be immediately managed to prevent adverse outcomes.
View Article and Find Full Text PDFJ Endovasc Ther
January 2025
Angiology, HFR Fribourg, Hôpital Universitaire et Cantonal, Fribourg, Switzerland.
Purpose: Angioplasty of lower extremity arteries with calcification may result in flow-limiting dissection requiring bail-out stenting with unfavorable long-term outcomes. Vessel preparation prior to angioplasty may improve immediate results of the angioplasty and long-term patency. This prospective study assessed the 12-month outcomes of patients who underwent novel vessel preparation catheter, the FLEX Vessel Prep™ System (FLEX VP), prior to drug-coated balloon angioplasty (DCB-PTA).
View Article and Find Full Text PDFInterv Neuroradiol
January 2025
Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Introduction: The Flow Re-direction Endoluminal Device (FRED) is a novel flow diverter with a unique double stent design, with an inner stent composed of 48 nitinol wires, and an outer stent with 16 nitinol wires. It is designed for endovascular cerebral aneurysm treatment, although, limited data exist regarding in-stent stenosis (ISS) rates associated with FRED devices.
Methods: A registry encompassing two North American comprehensive stroke centers was the base of this study.
J Mater Sci Mater Med
January 2025
Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, PR China.
In-stent restenosis (ISR) following interventional therapy is a fatal clinical complication. Current evidence indicates that neointimal hyperplasia driven by uncontrolled proliferation of vascular smooth muscle cells (VSMC) is a major cause of restenosis. This implies that inhibiting VSMC proliferation may be an attractive approach for preventing in-stent restenosis.
View Article and Find Full Text PDFEur J Radiol
December 2024
Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan. Electronic address:
Background And Purpose: The quantitative intra-arterial flow dynamics following percutaneous transluminal angioplasty and stenting (PTAS) for severe intracranial artery stenosis have never been investigated. We aimed to evaluate peritherapeutic intracranial artery flow dynamics following PTAS with quantitative magnetic resonance angiography (qMRA) to predict long-term stent patency.
Design: This is a prospective, single-center study.
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