Percutaneous aortic valve replacement: An experimental study. I

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Presentation transcript:

Percutaneous aortic valve replacement: An experimental study. I Percutaneous aortic valve replacement: An experimental study. I. Studies on implantation Georg Lutter, MD, Daniela Kuklinski, Georg Berg, VD, Patrick von Samson, MD, Juergen Martin, MD, Michael Handke, MD, Peter Uhrmeister, MD, Friedhelm Beyersdorf, MD The Journal of Thoracic and Cardiovascular Surgery Volume 123, Issue 4, Pages 768-776 (April 2002) DOI: 10.1067/mtc.2002.121157 Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Dr Lutter The Journal of Thoracic and Cardiovascular Surgery 2002 123, 768-776DOI: (10.1067/mtc.2002.121157) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 1 View of the homologous valved segment in a vascular memory stent. Note: The anchoring barbs at the outside of the valved stent ascertain the desired position after embedding. The Journal of Thoracic and Cardiovascular Surgery 2002 123, 768-776DOI: (10.1067/mtc.2002.121157) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 2 Catheter delivery system with guidewire, pusher, and external sheath. Note: The valved stent (21-28 mm in length) was hand crimped onto the proximal portion (35 mm in length) of a catheter delivery system (into the proximal capsule between the arrows). The Journal of Thoracic and Cardiovascular Surgery 2002 123, 768-776DOI: (10.1067/mtc.2002.121157) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 3 Diagram of the hydrodynamic pulsatile-flow testing used for the in vitro testing of valved stents. The system enables the adjustment of compliance and resistance. The Journal of Thoracic and Cardiovascular Surgery 2002 123, 768-776DOI: (10.1067/mtc.2002.121157) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 4 In vivo evaluation of a homologous valved stent in the descending aorta under transesophageal echocardiography control. Note: There is good visualization of the laminar transvalvular blood flow (left) and the fully closed leaflets of the new valve (right). 1, Nitinol stent; 2, valve cusp. The Journal of Thoracic and Cardiovascular Surgery 2002 123, 768-776DOI: (10.1067/mtc.2002.121157) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions