Valve-in-valve transcatheter aortic valve replacement: state of art

Author:

Costantino Marco Fabio1ORCID,D’Addeo Gianpaolo1,Cortese Francesca2ORCID,Stolfi Luisiana1ORCID

Affiliation:

1. Cardiovascular Department, “San Carlo” Hospital, 85100 Potenza, Italy

2. Cardiology Unit, “Madonna delle Grazie” Hospital, 75100 Matera, Italy

Abstract

Redo surgical aortic valve replacement (SAVR) has long been the standard treatment for severe symptomatic aortic stenosis (AS) and insufficiency, but transcatheter aortic valve replacement (TAVR) has emerged as a less invasive alternative, particularly for symptomatic AS. With calcification being a primary mechanism behind structural valve degeneration, factors such as patient characteristics and the type of bioprosthetic valve play crucial roles in determining risk. Valve-in-valve TAVR (ViV TAVR) has gained prominence as a viable alternative to redo SAVR in recent years. Echocardiography plays a pivotal role in patient selection, procedural guidance, and post-procedural evaluation in ViV TAVR. From pre-procedural assessment using transthoracic and transesophageal echocardiography to intra-procedural guidance and post-procedural follow-up, echocardiography aids in ensuring procedural success and monitoring valve function. Decision-making between redo SAVR and ViV TAVR involves multidisciplinary teams considering various factors like patient risk profile, anatomical considerations, and technical feasibility. While redo SAVR remains preferred for younger patients with lower risk, ViV TAVR is increasingly considered for older patients or those with higher reoperation risks. Factors such as coronary artery obstruction risk, patient-prosthesis mismatch, and paravalvular leak guide treatment decisions. Procedural techniques in ViV TAVR have evolved to minimize complications and optimize outcomes. Factors like access route selection, valve choice, and procedural guidance techniques significantly impact procedural success. Balloon valve fracture and preventive strategies against coronary obstruction are crucial considerations during the procedure. Post-procedural evaluation involves assessing clinical and hemodynamic outcomes, with long-term studies indicating favorable results but highlighting the importance of careful evaluation of transprosthetic gradients and valve function. ViV TAVR offers promising outcomes but requires meticulous patient selection, procedural planning, and post-procedural management to ensure optimal results.

Publisher

Open Exploration Publishing

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