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The introduction of minimally invasive transcatheter aortic valve replacement (TAVR) for treatment of aortic stenos not only has increased the number of patients eligible for aortic valve replacement (AVR), but also has led to a decrease in patient mortality, according to a study released at the 50th Annual Meeting of The Society of Thoracic Surgeons. These results suggest that patients fare better when multiple treatment options are available.
Using data from the STS Adult Cardiac Surgery Database and the STS/ACC Transcatheter Valve Therapy (TVT) Registry™, J. Matthew Brennan, MD, MPH, from Duke University Medical Center in Durham, NC, and colleagues evaluated the overall volume and outcomes from aortic valve interventions at participating U.S. hospitals from 2008 to 2012. TAVR became commercially available in the United States in 2012.
The study is the first to examine volume and outcomes at a national level.
"Early in the TAVR experience, there was concern that the availability of transcatheter procedures would lead to an abrupt reduction in the volume of surgical valve replacements," said Dr. Brennan. "Our findings confirm what other surgeons have observed - implementation of a TAVR program likely will broaden the surgical referral base and increase the volume of patients considered for treatment."
Across the study period, the total annual volume of aortic valve interventions increased from 34,699 to 43,282. In addition, the researchers found that overall mortality associated with AVR decreased, even in high-risk cases (8.9% in 2011 vs. 7.0% in 2012).
"In the initial U.S. experience, early outcomes following aortic valve replacement have improved with the availability of TAVR technology," said Dr. Brennan. "When surgeons have multiple treatment options, more patients will benefit. We expect this trend to continue as both device technology and patient selection continue to evolve."
The TVT Registry currently has more than 10,000 patient records and enrollment is on track to double that number in the next year. The large number of patient records allows for the development of reliable benchmarks for centers to reference in comparing their local results against risk-adjusted national standards. Ultimately this will translate into improved patient selection and optimal patient care.
The Society of Thoracic Surgeons
Article adapted by Medical News Today from original press release. Source:
The Society of Thoracic Surgeons
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7 Mar. 2014. <http://www.medicalnewstoday.com/releases/271713>
The Society of Thoracic Surgeons. (2014, January 28). "Availability of transcatheter repair of aortic stenosis benefits patients." Medical News Today. Retrieved from
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