ArticleEuropean heart journal. Case reports2026
Post-procedural computed tomography comparison of predicted and actual neo-left ventricular outflow tract after one-session double valve-in-valve implantation: a case report.
Article in European heart journal. Case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Left ventricular outflow tract (LVOT) obstruction is a serious complication of transcatheter mitral valve replacement and mitral valve-in-valve (ViV) procedures. Computed tomography (CT)-based virtual valve implantation predicts the neo-LVOT area, but it assumes idealized seating and may not fully reflect procedural interaction during double-valve intervention. Case summary: A 74-year-old woman with degenerated surgical mitral and aortic bioprostheses presented with NYHA class IV heart failure. Full-cycle ECG-gated 4D-CT identified the minimum predicted neo-LVOT at 43% of the R-R interval (300.9 mm Discussion: This case demonstrates that CT-based planning correctly identified procedural feasibility, while post-procedural CT revealed measurable geometric variability. The finding remained well above high-risk thresholds and should be interpreted as a hypothesis-generating geometric observation rather than clinically significant obstruction.
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