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J Thorac Cardiovasc Surg 2003;125:742-743
© 2003 The American Association for Thoracic Surgery
Letters to the Editor |
Division of Cardiovascular Surgery, University of Freiburg, D-79106 Freiburg, Germany
| The first 20% of the full text of this article appears below. |
Reply to the Editor:
We thank Boudjemline and Bonhoeffer for their valuable comments on our study.
1 As we know from our initial experimental work
1,2 started in 1996 using an infrarenal appproach, it is very difficult to position a valved stent directly into the aortic annulus without previously removing the native porcine leaflets. Native leaflets are very flexible and large enough to occlude their coronary ostia while the valved stent or a single stent is being deployed in pigs. As Andersen and colleagues
3 demonstrated in 1992, the implantation of a valved stent into the annular position is impossible in a porcine model because of
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