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经导管主动脉瓣置换

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Transcatheter Aortic-Valve Replacement with a Self-Expanding Valve in Low-Risk Patients Transcatheter Aortic-Valve Replacement with a Balloon-Expandable Valve in Low-Risk Patients Early Versus Standard Discharge After Transcatheter Aortic Valve Replacement: A Systematic Review and Meta-Analysis Preventing Coronary Obstruction During Transcatheter Aortic Valve Replacement From Computed Tomography to BASILICA Surgical or Transcatheter Aortic-Valve Replacement in Intermediate-Risk Patients Transcatheter or Surgical Aortic-Valve Replacement in Intermediate-Risk Patients Transcatheter Laceration of Aortic Leaflets to Prevent Coronary Obstruction During Transcatheter Aortic Valve Replacement: Concept to First-in-Human A prospective, randomised trial of transapical transcatheter aortic valve implantation vs. surgical aortic valve replacement in operable elderly patients with aortic stenosis: the STACCATO trial Transcatheter Versus Surgical Aortic Valve Replacement in Patients With Severe Aortic Valve Stenosis: 1-Year Results From the All-Comers NOTION Randomized Clinical Trial Comparative Accuracy of Focused Cardiac Ultrasonography and Clinical Examination for Left Ventricular Dysfunction and Valvular Heart Disease: A Systematic Review and Meta-analysis

Review ArticleVolume 76, Issue 8, August 2020

JOURNAL:J Am Coll Cardiol. Article Link

Raising the Evidentiary Bar for Guideline Recommendations for TAVR: JACC Review Topic of the Week

S Kaul. Keywords: clinical trials; guidelines; evidence;TAVR; SAVR

ABSTRACT

On August 16, 2019, the U.S. Food and Drug Administration approved expanding the indication for transcatheter aortic valve replacement (TAVR) to low-risk patients with symptomatic severe aortic stenosis. The decision was based on the results of 2 pivotal trials that confirmed superiority (PARTNER [Placement of Aortic Transcatheter Valves] 3) or noninferiority (Evolut Low Risk [LR]) of TAVR as compared with SAVR at 1- and 2-year follow-up, respectively. As compared with intermediate-risk cohorts, the sample size in these trials was smaller and the total number of primary endpoint events was nearly 3 times as low (193 vs. 615). The total number of deaths from any cause or disabling stroke at 1 year in the low-risk cohorts was 62, which is substantially lower than the numbers in intermediate-, high-, and inoperable-risk cohorts. In Evolut LR, only 137 of 1,403 patients (9.8%) completed the 2-year follow-up, with 91.2% requiring model-based imputation. Thus, the quantum of evidence is insufficient for endorsing TAVR as the preferred intervention for these patients.