Concordia researchers develop new method to evaluate artificial heart valves

(Concordia University) Using high-tech equipment to look at the flow downstream of a bi-leaflet mechanical heart valve, researchers at Concordia have devised a technique to detect obstructions in a type of mechanical heart valve they believe will contribute to safer follow-up methods for cardiologists and their patients.
Source: EurekAlert! - Medicine and Health - Category: International Medicine & Public Health Source Type: news

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ConclusionsSubstantial in vivo recellularization with noninflammatory cells was observed in this study. Spontaneous recellularization appears to require multiple months, which correspondingly has an impact on size selection for growing patients.
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
Abstract Based on a longtime voluntary registry, founded by the German Society for Thoracic and Cardiovascular Surgery (GSTCVS), well-defined data of all cardiac, thoracic, and vascular surgery procedures performed in 78 German heart surgery departments during the year 2018 are analyzed. For this period, a total of 174,902 procedures were submitted to the registry, 98,707 summarized as heart surgery procedures in the classical meaning. The unadjusted in-hospital survival rate for 33,999 isolated coronary artery bypass grafting procedures (relationship on-/off-pump 3.8:1) was 97.1% and for 34,915 isolated heart val...
Source: The Thoracic and Cardiovascular Surgeon - Category: Cardiovascular & Thoracic Surgery Authors: Tags: Thorac Cardiovasc Surg Source Type: research
Thorac cardiovasc Surg DOI: 10.1055/s-0039-1693022Based on a longtime voluntary registry, founded by the German Society for Thoracic and Cardiovascular Surgery (GSTCVS), well-defined data of all cardiac, thoracic, and vascular surgery procedures performed in 78 German heart surgery departments during the year 2018 are analyzed. For this period, a total of 174,902 procedures were submitted to the registry, 98,707 summarized as heart surgery procedures in the classical meaning. The unadjusted in-hospital survival rate for 33,999 isolated coronary artery bypass grafting procedures (relationship on-/off-pump 3.8:1) was 97.1% a...
Source: The Thoracic and Cardiovascular Surgeon - Category: Cardiovascular & Thoracic Surgery Authors: Tags: Original Cardiovascular Source Type: research
, Cerşit S, Özkan M Abstract The past 65 years have witnessed remarkable progress in the development of safe, hemodynamically favorable mechanical heart valves. Today, there are a large number and variety of prostheses in use and many prostheses have been used for a while and then discontinued. When patients lack reliable information about their heart valve prostheses, identification of valve model becomes difficult even for specialized physicians in this area. A combination of cinefluoroscopy and echocardiography makes it possible to provide accurate and detailed information regarding identification ...
Source: The International Journal of Artificial Organs - Category: Transplant Surgery Authors: Tags: Int J Artif Organs Source Type: research
AbstractMucopolysaccharidoses (MPS) are inborn errors of metabolism produced by a deficiency of one of the enzymes involved in the degradation of glycosaminoglycans (GAGs). Although taken separately, each type is rare. As a group, MPS are relatively frequent, with an overall estimated incidence of around 1 in 20,000 –25,000 births. Development of therapeutic options for MPS, including hematopoietic stem cell transplantation (HSCT) and enzyme replacement therapy (ERT), has modified the natural history of many MPS types. In spite of the improvement in some tissues and organs, significant challenges remain unsol ved, in...
Source: Drugs - Category: Drugs & Pharmacology Source Type: research
[News24Wire] Surgeons in Italy have made a rare discovery while operating on a 60-year-old woman - an artificial mitral valve that is almost 50 years old, and still working perfectly.
Source: AllAfrica News: Health and Medicine - Category: African Health Source Type: news
There has been a flurry of news recently about a procedure called trans-catheter aortic valve replacement (TAVR) for the treatment of the common heart condition aortic stenosis (AS). You may even know people who have had this procedure performed. What exactly is TAVR? And what’s all the excitement about? What is aortic stenosis? First, it’s important to understand the condition that TAVR is designed to treat, aortic stenosis. The aortic valve is the last structure of the heart through which blood passes before entering the aorta and circulating throughout the body. The aortic valve has three flaps, called leafl...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Health Heart Health Surgery Source Type: blogs
Cosmeri Rizzato1, Javier Torres2, Elena Kasamatsu3, Margarita Camorlinga-Ponce2, Maria Mercedes Bravo4, Federico Canzian5 and Ikuko Kato6* 1Department of Translation Research and of New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy 2Unidad de Investigación en Enfermedades Infecciosas, Unidades Médicas de Alta Especialidad Pediatría, Instituto Mexicano del Seguro Social, Mexico City, Mexico 3Instituto de Investigaciones en Ciencias de la Salud, National University of Asunción, Asunción, Paraguay 4Grupo de Investigación en Biología del C&aacut...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Researchers from Israel have created a 3D-printed model that captures the immunological,...Read more on AuntMinnie.comRelated Reading: 3D printing reduces liver transplant costs, surgery time 3D printing helps separate rare case of conjoined twins 3D printing technique improves heart valve sizing 3D-printed aortas could work well for TAVR Flexible 3D-printed heart replicates size, texture
Source: AuntMinnie.com Headlines - Category: Radiology Source Type: news
Here's a challenge. What do the three images in Figure  1 have in common? The answer reflects activities that took place decades ago. All three of these revolutionary medical devices (the implantable transvenous pacemaker, the hemodialysis unit, and the artificial heart valve) were the result of collaborations between at least one engineer and one phys ician. In fact, the valve in panel C bears the name of the two inventors, engineer M. Lowell Edwards and surgeon Albert Starr, MD. Dr. Starr attended the ASE Scientific Sessions when they were held in Portland, OR in 2014 and described in detail the bold steps that led ...
Source: Journal of the American Society of Echocardiography - Category: Cardiology Authors: Tags: American Society of Echocardiography News Source Type: research
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