NEWS on cardiovascular, respiratory system implants
TIA (transient ischemic attack) and stroke: neurologists for more precise patient selection for stent treatments
After a transient ischemic attack (TIA) or stroke, clinically stable patients do not appear to benefit from treatment with a stent. However, this may not be true for high-risk patients. This is shown by a Chinese-American study now published in the Journal of the American Medical Association (JAMA) (DOI: 10.1001/jama.2022.12000)....
Efficacy and Safety of an Extravascular, substernally implanted Cardioverter–Defibrillator
The extravascular implantable cardioverter–defibrillator (ICD) has a single lead implanted substernally to enable pause-prevention pacing, antitachycardia pacing, and defibrillation energy similar to that of transvenous ICDs. The safety and efficacy of extravascular ICDs are not yet known. In this prospective global study, we found that extravascular ICDs were implanted safely...
Younger patients experiencing more complications with cardioverter defibrillators
Younger patients who receive an implantable defibrillator are significantly less likely than older defibrillator patients to suffer from CHD and extracardiac comorbidities. They also have a better ejection fraction, 42% versus 32%. However, they are twice as likely (16.4% versus 8.2%) to come in for revision because of device-associated complications...
Genetically Modified Porcine-to-Human Cardiac Xenotransplantation
A 57-year-old man with nonischemic cardiomyopathy who was dependent on venoarterial extracorporeal membrane oxygenation (ECMO) and was not a candidate for standard therapeutics, including a traditional allograft, received a heart from a genetically modified pig source animal that had 10 individual gene edits. Sudden diastolic thickening and failure of the...
Supplemental calcium and vitamin D and long-term mortality in aortic stenosis
Calcium metabolism has long been implicated in aortic stenosis (AS). Studies assessing the long-term safety of oral calcium and/or vitamin D in AS are scarce yet imperative given the rising use among an elderly population prone to deficiency. We sought to identify the associations between supplemental calcium and vitamin D...
Spatially Heterogeneous Tubular Scaffolds for In Situ Heart Valve Tissue Engineering Using Melt Electrowriting
Heart valve tissue engineering (HVTE) aims to provide living autologous heart valve implants endowed with regenerative capabilities and life-long durability. However, fabrication of biomimetic scaffolds capable of providing the required functionality in terms of mechanical performance and tunable porosity to enable cellular infiltration remains a major challenge. Here, the additive...
Performance of Bioprosthetic Aortic Valves
Comparison of Long-term Performance of Bioprosthetic Aortic Valves in Sweden From 2003 to 2018 Importance The performance of bioprosthetic aortic valves is usually assessed in single valve models or head-to-head comparisons. National databases or registries offer the opportunity to investigate all available valve models in the population and allows for a...
Concomitant Tricuspid Repair in Patients with Degenerative Mitral Regurgitation
Tricuspid regurgitation is common in patients with severe degenerative mitral regurgitation. However, the evidence base is insufficient to inform a decision about whether to perform tricuspid-valve repair during mitral-valve surgery in patients who have moderate tricuspid regurgitation or less-than-moderate regurgitation with annular dilatation. Among patients undergoing mitral-valve surgery, those who...
smartphones may affect implanted pacemakers
Current smartphones may affect the function of implanted pacemakers/defibrillators. The hypothesis: Compared to previous devices, newer smartphones have more centrally and circularly installed magnets. These allow fast wireless charging of the smartphone. This could impair the functioning of pacemakers and defibrillators more than before. The researchers found influences of the...
Find NEWS and PUBLICATIONS here according to your interests or use the search box.
