Mild PVR in TAVR — A Small Leak, Long-Term Impact | JACC Baran
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Mild PVR in TAVR — A Small Leak, Long-Term Impact | JACC Baran
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Hosts Mitsuaki Sawano, MD, and Kentaro Ejiri, MD welcome Dr. Yusuke Watanabe, MD (Teikyo University) to discuss his study from the OCEAN-TAVI Registry, examining the long-term impact of mild paravalvular regurgitation (PVR) after TAVR. In over 5,000 patients with up to 9 years of follow-up, mild PVR—traditionally considered clinically acceptable—was associated with higher risks of all-cause mortality and bioprosthetic valve failure (BVF). Even modest regurgitation appeared to have cumulative effects over time, potentially contributing to volume overload, progressive valve degeneration, and adverse clinical outcomes. The episode challenges a long-held assumption in structural heart interventions: is "mild" PVR truly benign, or does it carry meaningful long-term consequences—especially as TAVR expands to younger, lower-risk populations?