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Medical Xpress internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

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    Two-year data reveal no difference in the combined rate of stroke and death from any cause when comparing the use of self-expanding transcatheter aortic valve replacement (TAVR) with standard open-heart surgery in intermediate risk patients with severe aortic stenosis, according to research presented at the American College of Cardiology's 66th Annual Scientific Session. Researchers say these results suggest TAVR, which involves threading a replacement valve through a catheter in the groin or chest, is at least as safe and effective as surgery in these patients.

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    Two FDA-cleared medical devices designed to remove potential vessel-blocking debris particles from the bloodstream during aortic valve replacement, known as Embol-X and CardioGard, did not significantly reduce overall number of brain infarcts over standard surgical procedure, according to a study presented at the American College of Cardiology's 66th Annual Scientific Session.

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    Small leakages from blood vessels in the brain, known as microbleeds, increase with age and are associated with cognitive decline. Of 84 older patients undergoing transcatheter aortic valve replacement (TAVR), nearly a quarter developed new microbleeds after their procedure, according to results of a single-center study presented at the American College of Cardiology's 66th Annual Scientific Session.

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    About 12 percent of patients undergoing aortic valve replacement developed non-symptomatic blood clots around the valve leaflets (known as subclinical leaflet thrombosis) that reduced the motion of the valves, according to an observational study presented at the American College of Cardiology's 66th Annual Scientific Session.

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    UCLA scientists have found that conscious sedation—a type of anesthesia in which patients remain awake but are sleepy and pain-free—is a safe and viable option to general anesthesia for people undergoing a minimally invasive heart procedure called transcatheter aortic valve replacement.

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    More than one-third of patients undergoing transcatheter aortic valve replacement (TAVR) were observed to have atrial fibrillation (AF) either at baseline or new-onset within 30 days after TAVR. Patients with new-onset AF had a >4 fold greater risk of stroke within 30 days. Results from "Effect of bivalirudin versus unfractionated heparin in patients with baseline or new-onset atrial fibrillation in transcatheter aortic valve replacement: From the BRAVO-3 randomized trial" were presented today as a late-breaking clinical trial at the Society for Cardiovascular Angiography and Interventions (SCAI) 2017 Scientific Sessions in New Orleans.

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    For patients who undergo transcatheter aortic valve replacement (TAVR), their risk factors, not the type of valve used, determined their 30-day post-TAVR outcomes. Results from "Impact of valve design and bivalirudin vs. unfractionated heparin for anticoagulation in transcatheter aortic valve replacement: Results from the BRAVO-3 trial" were presented today as a late-breaking clinical trial at the Society for CardiovascularAngiography and Interventions (SCAI) 2017 Scientific Sessions in New Orleans.

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    Patients at intermediate risk for surgery have lower risk of early neurological complications including stroke with transcatheter aortic valve implantation (TAVI) than with surgical aortic valve replacement, showed results reported for the first time at EuroPCR 2017 from the large, randomized SURTAVI (Surgical Replacement and Transcatheter Aortic Valve Implantation) trial.

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    Nearly one-quarter of patients with a mechanical heart valve say it disturbs their sleep, according to research presented today at EuroHeartCare 2017.1

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    Researchers are working to determine why the aortic valve doesn't form correctly in patients with the most common congenital heart defect: bicuspid aortic valve.

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    The first drug to treat calcification of heart valves may be one originally designed for rheumatoid arthritis.

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    Approximately 1 in 10 transcatheter aortic valve replacement (TAVR) procedures in the U.S. were for an off-label indication, with similar 1-year mortality rates compared to on-label use, suggesting that TAVR may be a possible procedure option for certain patients requiring a heart valve replacement, according to a study published by JAMA Cardiology.

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    Infections in surgically implanted heart valves are more common in patients who have been given a biological prosthetic valve than in those with a mechanical one, a study from Karolinska Institutet published today in the journal Circulation shows.

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    A pioneering new study is set to help surgeons repair hearts without damaging precious tissue.

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    As more elderly patients undergo the minimally invasive heart valve procedure called Transcatheter Aortic Valve Implantation (TAVR), concerns have been raised as to what causes some to be readmitted for heart failure after the procedure.

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    European Society of Cardiology (ESC) / European Association for Cardio-Thoracic Surgery (EACTS) Guidelines for the management of valvular heart disease are published online today in European Heart Journal and on the ESC website.

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    Patients with asymptomatic severe aortic stenosis who did not follow recommended guidelines for regular exams had poorer survival and were more likely to be hospitalized for heart failure, according to a study published by JAMA Cardiology.

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    An analysis of more than 1,000 minimally invasive aortic valve replacements and more than 400 additional associated procedures over a five-and-a-half year period performed by Dr. Joseph Lamelas, professor and associate chief of cardiac surgery in the division of cardiothoracic surgery at Baylor College of Medicine, showed low stroke rates and high survival rates in all age groups within 30 days of surgery. His report appears in the Journal of Thoracic and Cardiovascular Surgery.

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    The rate of patients with chronic kidney disease undergoing a heart procedure called transcatheter aortic valve replacement (TAVR) who eventually need to start dialysis is relatively low, suggests a new study published in JACC: Cardiovascular Interventions.

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