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Valve implantation on the beating heart
April 21, 2009Transcatheter valve implantation is a newly developed technique for the curative treatment of high-grade aortic stenosis. It is likely to be of benefit especially to elderly, multimorbid patients for whom the risk of open heart surgery would be too great. The initial results obtained with this technique at the German Heart Center in Munich are presented in the current issue of Deutsches Ärzteblatt International by Sabine Bleiziffer and her colleagues (Dtsch Arztebl Int 2009; 106(14): 235-41).
From June 2007 to September 2008, aortic valvular prostheses were successfully implanted with the transcatheter technique in 150 patients with high-grade aortic stenosis. The 30-day mortality was 11.8%, which can be compared to a figure of 24% for conventional aortic valve replacement surgery. The most common post-procedural complications were cardiac arrhythmia, vascular problems, and cerebrovascular events. Six months after the procedure, the patients' clinical condition had markedly improved, and the authors were able to demonstrate good hemodynamic functioning of the new prostheses.
Calcific aortic stenosis is the most common acquired heart valve defect in Western countries, with a prevalence of more than 3% in persons over age 75. Up to the present time, the treatment of choice for high-grade aortic stenosis has been surgical aortic valve replacement. As many as 60% of patients, however, cannot be operated on because of advanced age and major comorbidities, even though they suffer from severe symptoms and have a poor prognosis under conservative treatment.
The advantage of transcatheter valve implantation is that it can be performed on the beating heart without the need for a heart-lung machine. In the procedure, an aortic valve prosthesis crimped to fit inside the catheter is brought into aortic position and then unfolded. The catheter can be inserted transarterially, usually by way of a femoral artery puncture, or transapically, i.e., through the left ventricular apex. The technical feasibility of the procedure has already been demonstrated at multiple centers around the world.
Deutsches Aerzteblatt International
The advantage of transcatheter valve implantation is that it can be performed on the beating heart without the need for a heart-lung machine. In the procedure, an aortic valve prosthesis crimped to fit inside the catheter is brought into aortic position and then unfolded. The catheter can be inserted transarterially, usually by way of a femoral artery puncture, or transapically, i.e., through the left ventricular apex. The technical feasibility of the procedure has already been demonstrated at multiple centers around the world.
Deutsches Aerzteblatt International
Aortic Stenosis Current Events and Aortic Stenosis News RSSFew complications 1 year after aortic valve implantation
Research presented at the 21st annual Transcatheter Cardiovascular Therapeutics (TCT) scientific symposium, sponsored by the Cardiovascular Research Foundation (CRF), demonstrated an "exceptionally low" rate of complications one year after implantation of transcatheter aortic valve prostheses.
Minimally invasive aortic valve bypass benefits high-risk elderly patients
An uncommonly used surgical procedure that bypasses a narrowed aortic valve, rather than replacing it, effectively restores blood flow from the heart to the rest of the body and gives high-risk patients a safe alternative to conventional valve surgery.
Exercise Testing May Help Predict Seriousness of Mitral Regurgitation
In as many as one in five people over age 55, when the heart contracts to send blood around the body, some degree of backward leakage occurs across the mitral valve, a condition known as mitral regurgitation (MR).
NYC-area 1st: Morgan Stanley Children's Hospital performs transcatheter pulmonary valve replacement
A breakthrough new procedure may improve quality of life for children and adults with a common type of congenital heart defect that interferes with the body's ability to oxygenate blood through the lungs.
Fewer heart patients need antibiotics before dental procedures
Based on a review of new and existing scientific evidence, most dental patients with heart disease do not need antibiotics before dental procedures to prevent infective endocarditis (IE), a rare, but life-threatening heart infection.
Most patients don't need antibiotics before dental procedures
Taking a precautionary antibiotic before a trip to the dentist isn¡¦t necessary for most people, and in fact, might create more harm than good, according to updated recommendations from the American Heart Association.
New ACC/AHA guidelines released for valvular heart disease
An updated set of guidelines jointly released by the American College of Cardiology (ACC) and the American Heart Association (AHA) draws together the latest information on the diagnosis and treatment of patients with valvular heart disease.
ESC Congress 2003: C-reactive protein, an inflammatory biomarker, predicts progression of aortic valve stenosis
IMPORTANT: This press release accompanies a poster or oral session given at the ESC Congress 2003. Written by the investigator himself/herself, this press release does not necessarily reflect the opinion of the European Society of Cardiology Aortic stenosis (AS) is the narrowing or obstruction of the heart's aortic valve, which prevents it from opening properly and blocks the flow of blood from the left ventricle to the aorta. AS is common in the ageing population and has become the most frequent native valve disease in Europe. AS when severe, may cause left heart failure, fainting or angina, but the natural progression of less severe degrees is highly variable. The risk factors for the d
Brain-damage Threat From Invasive Assessment Of Heart-valve Stenosis (p 1241)
Authors of a study in this week's issue of THE LANCET warn against the widespread use of catheterisation to assess the extent of aortic-valve stenosis--this invasive procedure could increase the risk of cerebral blood clotting and brain damage. The severity of valvular aortic stenosis (a narrowing of the valve between the left ventricle of the heart and the aorta) can be accurately assessed non-invasively by echocardiography. However, retrograde catheterisation of the aortic valve is often undertaken to assess the degree of stenosis, especially for patients awaiting valve replacement; this procedure has a potential risk of neurological complications, with an unknown incidence of asymptomati
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Aortic Valve Stenosis Medical Guide by Qontro Medical Guides (Author) The Aortic Valve Stenosis Medical Guide is a publication which has been designed to better help readers understand Aortic Valve Stenosis. This Qontro Medical Guide has been designed with the reader in mind, and is a useful information source for readers at all levels looking to learn more about Aortic Valve Stenosis. The Aortic Valve Stenosis Medical Guide is highly recommended for those interested in understanding and learning more about Aortic Valve Stenosis. |
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Early surgery could be a lifesaver for aortic stenosis patients; a recent Cleveland Clinic study could revolutionize the treatment of this potentially ... An article from: Heart Advisor by Gale Reference Team (Author) This digital document is an article from Heart Advisor, published by Thomson Gale on October 1, 2007. The length of the article is 730 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser. Citation Details Title: Early surgery could be a lifesaver for aortic stenosis patients; a recent Cleveland Clinic study could revolutionize the treatment of this potentially deadly disease.(BREAKTHROUGHS) Author: Gale Reference Team Publication: Heart Advisor (Magazine/Journal) Date: October 1, 2007 Publisher: Thomson Gale Volume: 10 Issue: 10 Page: 3(1) Distributed by Thomson... | |
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Aortic Stenosis - A Medical Dictionary, Bibliography, and Annotated Research Guide to Internet References by Health Publica Icon Health Publications (Contributor) In March 2001, the National Institutes of Health issued the following warning: "The number of Web sites offering health-related resources grows every day. Many sites provide valuable information, while others may have information that is unreliable or misleading." Furthermore, because of the rapid increase in Internet-based information, many hours can be wasted searching, selecting, and printing.This book was created for medical professionals, students, and members of the general public who want to conduct medical research using the most advanced tools available and spending the least amount of time doing so. |
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The effects of supravalvular aortic stenosis elastin gene mutation on voice production.(Clinical report): An article from: Journal of Medical Speech - Language Pathology by Christopher R. Watts (Author), Jeffery A. Marler (Author), Zsolt Urban (Author) This digital document is an article from Journal of Medical Speech - Language Pathology, published by Thomson Gale on December 1, 2007. The length of the article is 6968 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser. Citation Details Title: The effects of supravalvular aortic stenosis elastin gene mutation on voice production.(Clinical report) Author: Christopher R. Watts Publication: Journal of Medical Speech - Language Pathology (Magazine/Journal) Date: December 1, 2007 Publisher: Thomson Gale Volume: 15 Issue: 4 Page: 395(11) Article Type: Clinical report Distributed... | |
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AORTIC STENOSIS: HAEMODYNAMIC AND CLINICAL FINDINGS IN 56 PATIENTS (TRANSLATED FROM DANISH) by PER FRITZ HANSEN (Author) | |
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Aortic Valve Stenosis: An entry from Gale's Gale Encyclopedia of Medicine, 3rd ed. by Jeanine, Physiologist Barone (Author) This digital document is an article from Gale Encyclopedia of Medicine, 3rd ed., brought to you by Gale®, a part of Cengage Learning, a world leader in e-research and educational publishing for libraries, schools and businesses. The length of the article is 599 words. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser. The third edition of this authoritative, comprehensive, in-depth medical guide features information on medical topics in language accessible to adult laypersons. Disease/disorder articles typically cover definition; description; causes and symptoms; diagnosis; treatments; prevention; and more. Test/treatment articles typically cover definition; purposes;... | |
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Gender and Aortic Stenosis by Christina Fuchs (Author) Aortic stenosis (AS) has become the most frequent valve disease and has extensively been studied in recent years. Although gender differences have gained increasing attention in cardiolgy, little is known about gender differences in presentation and surgical outcome of AS so far.In 408 consecutive pts. referred to surgery because of symptomatic AS baseline clinical and echocardiographic data as well as outcome data were analyzed with regard to potential gender differences. At presentation, female pts. were significantly older (73.7 ¿ 9.3 vs. 66.5 ¿ 11.5 years;... |
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Less-invasive treatments make aortic valve stenosis surgery more available: an aging population means a greater need for aortic valve replacements.: An article from: Heart Advisor by Unavailable (Author) This digital document is an article from Heart Advisor, published by Belvoir Media Group, LLC on May 1, 2009. The length of the article is 858 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser. Citation Details Title: Less-invasive treatments make aortic valve stenosis surgery more available: an aging population means a greater need for aortic valve replacements. Author: Unavailable Publication: Heart Advisor (Magazine/Journal) Date: May 1, 2009 Publisher: Belvoir Media Group, LLC Volume: 12 Issue: 5 Page: 1(2) Distributed by Gale, a part of Cengage... | |
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