What are the immediate results of aortic stents in the repair of coarctation of the aorta (CoA)?

Updated: Nov 20, 2018
  • Author: Syamasundar Rao Patnana, MD; Chief Editor: Stuart Berger, MD  more...
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The reduction of peak systolic pressure gradients and an increase in the diameter of the coarcted segment have been demonstrated following stent implantation. [60, 73, 88, 99, 100, 101, 102, 103, 104, 105, 106, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 123] Stenting was found to be effective in postsurgical and postballoon recoarctations, as well as in native coarctations. The ratio of diameters of coarcted segment to the descending aorta at the level of the diaphragm increased to unity in many patients who undergo aortic stenting. Improvement in the size of hypoplastic isthmus or transverse aortic arch and exclusion of the aneurysm, if present, also occurred after stent placement.

In the first series of 10 patients published by Suarez de Lezo et al in 1995, [100] the peak systolic pressure gradient across the coarctation decreased from 43 ± 12 to 2 ± 3 mm Hg (P< .001). The ratio of isthmus/descending aorta increased from 0.65 ± 0.14 to 1 ± 0.08 following the procedure. Similar results have been reported subsequently by other investigators. [68, 73]

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