Thomas Walther, MD, PhD

Case Study

A Direct Comparison of Self-Expandable Portico Versus Balloon-Expandable Sapien 3 Devices for Transcatheter Aortic Valve Replacement: A Case-Matched Cohort Study

06/28/2019

Gina-Lisa Mohr , MD;

Nestoras Papadopoulos , MD;

Stephan Fichtlscherer , MD;

Andreas M. Zeiher , MD;

Silvia Mas-Peiro , MD, MSc;

Mariuca Vasa-Nicotera , MD;

Thomas Walther , MD, PhD;

Helge Weiler , MD;

This is the first study to directly compare the Portico valve with the Sapien 3 valve; we compared 104 Portico valves and 73 Sapien 3 valves at a high-volume center in a real-world setting.

This is the first study to...

06/28/2019

Journal of Invasive Cardiology

Original Research

Efficacy and Safety of Postdilation for a Self-Expanding Transcatheter Heart Valve

05/19/2022

Christian W. Hamm , MD, PhD, FESC;

Won-Keun Kim , MD;

Matthias Renker , MD;

Holger Nef , MD;

Helge Möllmann , MD, PhD;

Thomas Walther , MD, PhD;

Yeong-Hoon Choi , MD, PhD;

Data are lacking regarding the outcomes of balloon postdilation (BPD) for the Acurate neo and neo2 devices. The aim of this study was to assess the impact of BPD in a large, single-center cohort of patients treated with the Acurate platform.

Data are lacking regarding the...

05/19/2022

Journal of Invasive Cardiology

Original Contribution

A Novel Model to Predict 1-Year Mortality in Elective Transfemoral Aortic Valve Replacement: The TAVR-Risk Score

10/13/2022

Georg Wolff , MD;

Raphael Romano Bruno , MD;

Tobias Zeus , MD;

Artur Lichtenberg ;

Malte Kelm , MD;

Friedhelm Beyersdorf ;

Christian Jung , MD, PhD;

Christian W. Hamm , MD, PhD, FESC;

Jan Gummert , MD, PhD;

Andreas M. Zeiher , MD;

Magnus Settergren , MD;

Amin Polzin , MD;

Bernhard Wernly , MD, PhD;

Christian Frerker , MD;

Raffi Bekeredjian , MD;

Timm Bauer , MD;

Andreas Beckmann , MD;

Sabine Bleiziffer , MD;

Stephan M. Ensminger , MD, PhD;

Helge Möllmann , MD, PhD;

Christopher U. Meduri , MD, MPH;

Thomas Walther , MD, PhD;

Kari Feldt , MD;

We aimed to develop and validate an effective prediction model for 1-year mortality risk in elective transfemoral transcatheter aortic valve replacement (TAVR), ie, the TAVR-Risk (TARI) model.

We aimed to develop and validate...

10/13/2022

Journal of Invasive Cardiology

Original Contribution

TAVI With or Without Predilation: Trends From a Large, Propensity-Score Weighted German Aortic Valve Registry (GARY) Population

11/23/2022

Alexander Lauten , MD;

Christian Frerker , MD;

Raffi Bekeredjian , MD;

Brunilda Alushi , MD, PhD;

Umniye Balaban ;

Eva Herrmann ;

Andreas Schaefer , MD;

Sabine Bleiziffer , MD;

Timm Bauer , MD;

Helge Möllmann , MD, PhD;

Andreas Beckmann , MD;

Thomas Walther , MD, PhD;

Stephan M. Ensminger , MD, PhD;

Lenard Conradi , MD;

Currently, it is unclear whether transcatheter aortic valve implantation (TAVI) without predilation (direct TAVI; d-TAVI) or with preimplantation balloon valvuloplasty (b-TAVI) provides similar clinical safety and efficacy. Therefore, we...

Currently, it is unclear whether...

11/23/2022

Journal of Invasive Cardiology

Original Contribution

Hemodynamic Outcome and Valve Durability Beyond Five Years After Transcatheter Aortic Valve Replacement

02/29/2020

Eileen Hofmann , MD;

Roberta De Rosa , MD;

Silvia Mas-Peiro , MD, MSc;

Philipp Christian Seppelt , MD;

Stephan Fichlscherer , MD;

Mariuca Vasa-Nicotera , MD;

Thomas Walther , MD, PhD;

Andreas M. Zeiher , MD;

Marie-Isabel Murray , MD;

The aim of this study was to evaluate hemodynamic outcome, structural valve deterioration, and bioprosthetic valve failure beyond 5 years after transcatheter aortic valve replacement (TAVR). Demographic, procedural, and outcome data were...

The aim of this study was to...

02/29/2020

Journal of Invasive Cardiology