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Sutureless replacement of aortic valves with St Jude Medical mechanical valve prostheses and Nitinol attachment rings: Feasibility in long-term (90-day)

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Presentation on theme: "Sutureless replacement of aortic valves with St Jude Medical mechanical valve prostheses and Nitinol attachment rings: Feasibility in long-term (90-day)"— Presentation transcript:

1 Sutureless replacement of aortic valves with St Jude Medical mechanical valve prostheses and Nitinol attachment rings: Feasibility in long-term (90-day) pig experiments  Eric Berreklouw, MD, PhD, Bart Koene, MD, Filip De Somer, PhD, Stefaan Bouchez, MD, Koen Chiers, DMV, PhD, Yves Taeymans, MD, PhD, Guido J. Van Nooten, MD, PhD  The Journal of Thoracic and Cardiovascular Surgery  Volume 141, Issue 5, Pages e1 (May 2011) DOI: /j.jtcvs Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

2 Figure 1 A, Suturering-denuded 19-mm St Jude Medical mechanical aortic valve prosthesis inside textile-covered Nitinol attachment ring with flexible upper and lower flange (device), in warm expanded shape (view from above). B, Same device as in A, in stretched cold shape (side view). The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

3 Figure 2 A, Applicator with 2 movable holding arms inside same device as in Figure 1, in stretched cold shape (side view). B, Recirculating fluid applicator with 2 movable holding arms inside same device as in Figure 1, in stretched cold shape (side view). C, Simple holding applicator sutured on top in the same device as in Figure 1, in stretched cold shape (side view). The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

4 Figure 3 A, Peroperative supravalvular angiogram of device in aortic annular position, with grade 1+ aortic regurgitation. B, Supravalvular angiogram after 90 days, showing same device as in Figure 3, A, with grade 1+ aortic regurgitation. The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

5 Figure 4 A, Device after 94 days, from aortic side, with grade 1 tissue overgrowth. B, Same device as in Figure 4, A, from left ventricular side with grade 2 tissue overgrowth. C, Hand-sutured control valve, after 90 days, from aortic side with grade 1 tissue overgrowth. D, Same device as Figure 4,C, from left ventricular side with grade 2 tissue overgrowth. The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

6 Operative research team: Maria Olieslagers, Sara van de Wiele, Stefaan Bouchez, Filip De Somer, Eric Berreklouw, and Bart Koene (left to right) The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

7 A, Unchanged 19-mm Edwards Perimount biological aortic valve prosthesis on top of textile-covered Nitinol attachment ring with rigid upper and flexible lower flange (device), in warm expanded shape (side view). B, Same device as in A, in cold stretched shape (side view). The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

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