Editorial: Minding the Gradient — Valve-in-Valve Transcatheter Aortic Valve Replacement vs. Redo Surgical Aortic Valve Replacements for Surgical Bioprosthetic Valve Failure

• Syed Zaid, MD,
• Neal S. Kleiman, MD

Affiliations

Syed Zaid, MD

Department of Cardiology, Section of Interventional Cardiology, Houston Methodist DeBakey Heart and Vascular Center, Houston, Texas, USA

Neal S. Kleiman, MD

Address correspondence to: Neal S. Kleiman, MD, 6565 Fannin, MS WT 4-3020, Houston, TX 77030.; Department of Cardiology, Section of Interventional Cardiology, Houston Methodist DeBakey Heart and Vascular Center, Houston, Texas, USA