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  • TAVI just as effective...

TAVI just as effective as conventional heart surgery for severe AS among elderly : JAMA

Written By : Dr. Kamal Kant Kohli Published On 2022-05-19T09:30:40+05:30  |  Updated On 19 May 2022 10:55 AM IST
TAVI just as effective as conventional heart surgery for severe AS among elderly : JAMA
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  • Among patients aged 70 years or older with severe, symptomatic aortic stenosis and moderately increased operative risk, treatment with TAVI was noninferior to surgery with respect to all-cause mortality at 1 year, finds a study led by researchers at the National Institute for Health and Care Research (NIHR) Leicester Biomedical Research Centre.

The study has shown that a less invasive heart procedure for a common condition is just as effective as conventional open-heart surgery.

The findings are published in the Journal of the American Medical Association.

The study compared Transcatheter Aortic Valve Implantation (TAVI) to conventional surgery in treating severe symptomatic aortic stenosis. In this condition there is a narrowing of the valve that blood flows through as it leaves the heart and treatment often requires surgery. It is estimated that 1.5% of UK adults over 55 and 3.5% of those over 75 have this condition.

The first TAVI in the UK was performed in Leicester in 2007 by a multidisciplinary team at Glenfield Hospital in Leicester, led by Professor Jan Kovac. In a TAVI procedure, a new valve is threaded through a small tube inserted into an artery in the groin, upper arm or chest. It provides an alternative to open-heart surgery and is widely used across the UK.

Previous studies have shown TAVI is a safe and effective treatment for people who are not eligible for conventional surgery or at high operative risk. However, this study included patients who were at lower risk and suitable for either procedure. The study found that, one year after treatment, the rates of death from any cause and other important clinical outcomes such as stroke were similar between the TAVI group and the surgery group.

The study included 913 participants who were randomised to either undergo the TAVI procedure or conventional surgery. The average age of participants was 81. Those who underwent TAVI were more likely to experience vascular complications and require pacemakers, while those who underwent surgery were more likely to experience severe bleeding. There was a greater improvement in symptoms, functional capacity and quality of life at 6 weeks in the patients who received TAVI and the quality of life advantage was still present at one year.

Professor William Toff, Professor of Cardiology in the University of Leicester's Department of Cardiovascular Sciences, led the UK TAVI study. He said: "It's great news for patients that TAVI is just as safe and effective as surgery even in patients at lower operative risk. This procedure is much less invasive than conventional approaches. People who would otherwise require open-heart surgery can have this procedure, and as it has a faster recovery time it means a shorter stay in hospital for patients.

"These are extremely encouraging results after one year. However, we shall continue to monitor the participants for at least 5 years to ensure no late differences in the groups emerge and to assess the durability of the TAVI valves. We hope to publish the 5-year results by the end of next year. In the meantime, patient-specific treatment recommendations should continue to be made by a multi-disciplinary heart team."

For further reference log on to:

http://dx.doi.org/10.1001/jama.2022.5776


Journal of the American Medical Associationsurgeryopen heart surgeryheart conditionmedical technologyarteriesTranscatheter Aortic Valve ImplantationTAVIJAMAheart surgery
Source : Journal of the American Medical Association
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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