Key result
Balloon post-dilation successfully corrects 34-mm self-expandable transcatheter valve infolding, leaving only trace paravalvular leak.
Why the study?
Infolding of self-expandable valves during TAVR is an under-recognized complication with limited data on risk factors and management strategies.
Case Report (n=1)
Clinicians should monitor for rare self-expandable TAVR infolding; this case report leaves open incidence and optimal management strategies.
Transcutaneous aortic valve replacement (TAVR) has become a widely accepted minimally invasive approach for treatment of severe aortic stenosis. Self-expandable prostheses are commonly the device of choice, with excellent procedural success and durability. However, there have been several recent case reports of infolding of the self-expandable prosthesis during development with subsequent malfunction and need for further intervention. We present a case of self-expandable valve prosthesis infolding managed by balloon postdilation, and summarize the cases reported in the literature to date in an attempt to increase awareness of this serious technical problem and the factors associated with it.
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Karrowni et al. (2020) conducted a case report in Severe aortic stenosis (n=1). Balloon post-dilation for self-expandable valve infolding was evaluated on Correction of prosthesis infolding and paravalvular leak. Infolding of a 34-mm self-expandable transcatheter heart valve was successfully corrected using balloon post-dilation, resolving the severe prosthesis distortion and resulting in only trace paravalvular leak.
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