The objective of this prospective, multicenter, observational trial was to evaluate the procedural results and longterm outcomes of the flexible AVE GFX coronary stent in native coronary lesions. The trial included 137 consecutive patients (111 [81%] men, age 63.1 +/- 9.2 years) with one vessel disease (n = 76 [55.5%]), two vessel disease (n = 31 [22.6%]), and three vessel disease (n = 30 [21.9%]) with ischemia secondary to a significant denovo lesion (diameter > or = 3 mm, length < or = 18 mm) in a native coronary artery. Stent deployment was successful in 97.8% (134/137) of patients. Angiographic follow-up at 6.1 +/- 1.2 months was available in 111 (82.8%) of 134 patients. All angiographic images were analyzed by an independent core lab. The primary end point was the binary restenosis rate. In-hospital major cardiac events occurred in 3.7%. No postdischarge major adverse cardiac events occurred, except for one abrupt closure (0.7%). Angiographic restenosis was documented in 22 (19.8%) of 111 patients. The GFX stent is easy to handle with high success and low restenosis rates in patients with simple lesions in native coronary arteries and, thus, compares favorably with other sophisticated stents.
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http://dx.doi.org/10.1111/j.1540-8183.2002.tb01102.x | DOI Listing |
Comput Biol Med
January 2025
UCL Mechanical Engineering, University College London, UK; Ri.MED Foundation, Palermo, Italy; University of Palermo, Department of Engineering, Palermo, Italy. Electronic address:
Aortic valve replacements, both surgical and transcatheter, are nowadays widely employed treatments. Although clinically effective, these procedures are correlated with potentially severe clinical complications which can be associated with the non-physiological haemodynamics that they establish. In this work, the fluid dynamics changes produced by surgical and transcatheter aortic valve replacements are analysed and compared with an ideal healthy native valve configuration, employing advanced fluid-structure interaction (FSI) simulations.
View Article and Find Full Text PDFBiomaterials
January 2025
Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA. Electronic address:
Direct pacing of the mid myocardium where re-entry originates can be used to prevent ventricular arrhythmias and circumvent the need for painful defibrillation or cardiac ablation. However, there are no pacing electrodes small enough to navigate the coronary veins that cross these culprit scar regions. To address this need, we have developed an injectable ionically conductive hydrogel electrode that can fill the epicardial coronary veins and transform them into flexible electrodes.
View Article and Find Full Text PDFCirc Cardiovasc Qual Outcomes
January 2025
Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL. (N.A.C., X.H., L.C.P., H.N., N.S.S., A.M.P., P.G., D.M.L.-J., K.N.K., S.S.K.).
Background: Suboptimal cardiovascular health (CVH) in pregnancy is associated with adverse maternal and offspring outcomes. To guide public health efforts to reduce disparities in maternal CVH, we determined the contribution of individual- and neighborhood-level factors to racial and ethnic differences in early pregnancy CVH.
Methods: We included nulliparous individuals with singleton pregnancies who self-identified as Hispanic, non-Hispanic Black (NHB), or non-Hispanic White (NHW) and participated in the nuMoM2b cohort study (Nulliparous Pregnancy Outcomes Study: Monitoring Mothers-to-Be).
J Soc Cardiovasc Angiogr Interv
December 2024
Division of Cardiovascular Medicine, Sulpizio Cardiovascular Center, University of California San Diego, San Diego, California.
Background: A minimum threshold activated clotting time (ACT) to guide heparin dosing during percutaneous coronary intervention (PCI) is associated with lower ischemic complications. However, data are variable regarding the risk of high ACT levels. The aim of this study was to assess the impact of peak procedural ACT on complications and mortality for transfemoral and transradial access PCI.
View Article and Find Full Text PDFWorld J Pediatr Congenit Heart Surg
January 2025
Division of Cardiac Surgery, University of Toronto, Toronto, ON, Canada.
The presentation of pulmonary vasculature in pulmonary atresia with ventricular septal defect and major aortopulmonary collateral arteries (PA/VSD/MAPCA) is highly variable-as is the number, size and position of the MAPCAs and their relationship with the native pulmonary artery system. The priority in the management of this disease should be attaining timely and complete unifocalization, as opposed to single-stage full repair in every case. The merit of early unifocalization is that it secures the pulmonary vascular bed by (a) avoiding loss of lung segments from progressive stenosis/atresia of MAPCA origins, (b) preventing lung injury from high pressure/flow in areas fed by large, unobstructed MAPCAs, and (c) restoring central continuity of the pulmonary vasculature.
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