Contributions Brian C. Whisenant, MD, FSCAI SCAI/HRS Expert Consensus Statement on Transcatheter Left Atrial Appendage Closure (LAAC) Brian C. Whisenant, MD, FSCAI ACC/AHA/SCAI Advanced Training Statement on Interventional Cardiology 2023 Brian C. Whisenant, MD, FSCAI AATS/ACC/SCAI/STS Expert Consensus Systems of Care Document: Operator and Institutional Recommendations and Requirements for Transcatheter Mitral Valve Intervention