Results from a study presented today at the ESC Congress 2011, show that TAVI implantation in low risk patients, met with 100% procedural success (versus 95.3% in the high Euroscore group (p=0.1).
Aortic stenosis is the most frequently acquired valve disease in adults. 2% are symptomatic and thus should require aortic valve replacement because, in this disease, a long latency is followed by rapid progression after the appearance of symptoms, with more than half of patients dying within two years. It can be estimated that with the aging population, within 15 years, the number of aortic stenosis patients will double.
After more than 15 years of research, the first-in-man percutaneous valve implantation was performed in our center at the University Hospital of Rouen by Prof. Cribier in April 2002. Since then, about 40 000 patients have been implanted worldwide with the use of two different models of valve: the balloon expandable valve 1 and the self expanding device 2. The CE mark was obtained for both in 2007. TAVI can today be proposed as an alternative treatment and has recently demonstrated its great efficiency with the results of the pivotal PARNER-US trial.
Based on the recommendations of both the European Society of Cardiology and the European Society of Cardiac Surgery, most of the registries have so far only included patients with high logistic Euroscore > 20%. (a system developed to predict the operative mortality of coronary surgery).
In view of the overall good results in this high risk population, a significant trend to include lower risk patients in Europe has been observed. The last registries have seen their Euroscore decreasing to 15% and some prospective trials are planned to include patients whatever their Score.
"We sought to evaluate the results obtained in our subgroup of patients with a low Euroscore. It does not mean that the patients were at very low risk for TAVI, since they had been considered as having surgical contraindication which did not affect the Euroscore (radiotherapy, corticosteroids, thoracic deformation or porcelain aorta). However, the patients were often less sick and younger and it seemed interesting to assess the results in this population," said Dr Godin.This study is a retrospective study from all 177 patients implanted with the Edwards prosthesis at the Rouen centre between May 2006 and January 2011. Patients were divided into two groups according to their predictive Logistic Euroscore: High Euroscore (>20%) vs Low Euroscore (
Results show that procedural success was 100% in the low Euroscore group versus 95.3% in the high Euroscore group (p=0.1).The most interesting point to observe is the absence of death at one month in the low Euroscore group, versus a mortality rate of 11.1% in the high Euroscore group (>20%), (p
While we were expecting a lower mortality among patients with low Euroscore, the observed difference was much greater than anticipated. In fact the mortality rates have approached the results with conventional surgery.
The results represent a first step towards a broader assessment of percutaneous techniques in populations at lower surgical risk but without forgetting that surgery is currently the gold standard
Dr Matthieu Godin, Pr Hélène Eltchaninoff, Pr Alain Cribier1 (Edwards SAPIEN and more recently SAPIEN-XT) developed by the company Edwards Lifesciences
2 The Medtronic CoreValve
About the European Society of Cardiology
The European Society of Cardiology (ESC) represents more than 71,200 cardiology professionals across Europe and the Mediterranean. Its mission is to reduce the burden of cardiovascular disease in Europe.
About ESC Congress 2011
ESC Congress 2011 will take place from 27 August to 31 August at Paris Nord Villepinte, Paris. Information on the scientific programme is available at http://spo.escardio.org/Welcome.aspx?eevtid=48 More information on ESC Congress 2011 is available from the ESC's press office at firstname.lastname@example.org
Jacqueline Partarrieu | EurekAlert!
Novel PET tracer identifies most bacterial infections
06.10.2017 | Society of Nuclear Medicine and Molecular Imaging
Teleoperating robots with virtual reality
05.10.2017 | Massachusetts Institute of Technology, CSAIL
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
It's possible to produce hydrogen to power fuel cells by extracting the gas from seawater, but the electricity required to do it makes the process costly. UCF...
17.10.2017 | Event News
10.10.2017 | Event News
10.10.2017 | Event News
17.10.2017 | Life Sciences
17.10.2017 | Physics and Astronomy
17.10.2017 | Life Sciences