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  • Title: [Percutaneous angioplasty of native coarctation of the aorta. Results in children and young adults].
    Author: Godart F, Brevière GM, Francart C, Cajot MA, Richard A, Rey C.
    Journal: Arch Mal Coeur Vaiss; 2006 May; 99(5):419-23. PubMed ID: 16802728.
    Abstract:
    The authors report the experience of one centre in the treatment of native coarctation of the aorta by percutaneous angioplasty. Between 1999 and August 2005, 22 patients (7 girls, 15 boys) underwent dilatation of their coarctation by a balloon catheter at an average age of 11.8 +/- 5 years and body weight of 44 +/- 21 kg. In 20 patients, balloon angioplasty alone was performed and, in the other two, the angioplasty was associated with the insertion of a covered CP stent. The dilatation was performed with a balloon/coarctation ratio of 2.18 +/- 0.6 (1.7 to 3.5) and a balloon/isthmus ratio of 1.0 +/- 0.23 (0.7 to 1.87). After the procedure, ascending aortic pressure decreased from 134.7 +/- 23.4 mmHg to 125 +/- 22.7 mmHg (p= 0.0003); descending aortic pressure increased from 93.4 +/- 14.9 mmHg to 104.8 +/- 21.7 mmHg (p= 0.003); transisthmic pressure gradient decreased from 41.7 +/- 14.1 mmHg to 19.8 +/- 9.5 mmHg (p< 0.0001) and the diameter of the coarctation increased from 5.9 +/- 2.6 mm to 9.3 +/- 2.6mm (p= 0.0015). The two patients treated by covered CP stents had excellent immediate results without significant residual gradients. After dilatation (sometimes repeated, N= 13), a gradient > 20 mmHg persisted in ten patients (36% of cases) but no predictive factor was found on statistical analysis. There were no cases of acute aneurysm. In one patient, the femoral pulse decreased but returned to normal with heparin therapy. No patient required emergency surgical treatment after the angioplasty. During the clinical follow-up, echocardiography and MRI showed no signs of aneurysm and one patient had mild irregularity of the isthmic region. Three patients underwent surgery by resection suture for persistent coarctation (one combined with a Ross procedure); another patient was treated by a CP stent. In conclusion, percutaneous angioplasty of native coarctation of the aorta gives satisfactory results with few complications in bigger children and young adults. The results can be improved by using a slightly higher balloon/coarctation ratio.
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