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Native aortic valve regurgitation: TAVR's place in the PANTHEON
1Department of Cardiac Surgery, Rabindranath Tagore International Institute of Cardiac Sciences, Narayana Health, 124, EM Bypass, Mukundapur, Kolkata, 700099 India.
Abstract:
The PANTHEON (Performance of Currently Available traNscaTHEter Aortic Valve Platforms in Inoperable Patients With Pure Aortic regurgitatiON of a native valve) study examined transcatheter aortic valve replacement in patients with severe pure native aortic valve regurgitation. With a real-world dataset from 16 centres in Europe and the USA, the study encompassed 201 patients. The major complications included valve embolization or migration in 12.4%, moderate to severe aortic regurgitation in 9.5% cases and need for permanent pacemaker in 22.3% cases. Self-expanding and balloon-expandable devices demonstrated similar outcomes. Those experiencing valve embolization or migration had higher 1-year adverse event rates.
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Heart Valves
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...

