The mission of the TVT Registry™ is to track patient safety and real-world outcomes related to transcatheter valve replacement or repair procedures. The registry is an initiative of the Society of Thoracic Surgeons (STS) and the American College of Cardiology Foundation (ACCF).
The TAVR 30-day morbidity/mortality composite was developed by a TVT Registry Workgroup (physician leaders of the registry and statisticians at Duke Clinical Research Institute) for the purpose of providing feedback in the institutional outcomes reports. The model is a hierarchical, multi-category risk model that estimates risk standardized results (reported as a “site difference” and including the calculation of 1-3 stars for public reporting) for 5 endpoints (outcomes) at 30 days (mortality, stroke, major or life threatening bleeding, acute kidney injury, or moderate-severe paravalvular aortic regurgitation). If a patient experiences multiple outcomes, the outcome with the highest rank is assigned. The model includes 46 variables including KCCQ and gait speed (5-meter walk) and is reported on rolling 3 years of data (not R4Q).