Xiaoyong Huang, Presenter: Nothing to Disclose

Jiaqing Fu, Abstract Co-Author: Nothing to Disclose

Lianjun Huang, Abstract Co-Author: Nothing to Disclose

XI GUO, Abstract Co-Author: Nothing to Disclose

Xin Pu, Abstract Co-Author: Nothing to Disclose

Coarctation of the aorta (CoA) is a common congenital malformation leading to a life expectancy of about 35 years unless corrected. This study was to investigate the safety and effectiveness of treatment of native CoA in adults and adolescents using covered-stent implantation.  

A retrospective analysis was performed in 33 patients (mean age: 21.3±9.1 years, mean weight: 52.7±8.3 kg) diagnosed with native CoA by CT angiography and who accepted stent implantation from April 2005 to June 2012. Mean CoA diameter was 4.2±1.8 mm and mean length was 14.63±4.64 mm. Blood pressure monitoring, and CT angiography were performed 6, 12 and 24 months after surgery.

The procedures were successful in all cases, without major complications. Peak systolic pressure gradient decreased from 63.8±17.6 mmHg to 6.5±2.1 mmHg (P=0.005). Mean CoA diameter increased from 4.2±1.8 mm to 18.9±1.9mm (P＝0.001). Eight patients with patent ductus arteriosus had no persistent left-to-right shunt after covered Cheatham-Platinum stent implantation. Pressure gradient was still present after implantation in one case with combined aortic arch dysplasia, and a longer bare stent was implanted to overlap the Cheatham-Platinum stent. Mean follow-up was 37.4±21.9 months. During this period, one patient with sustained hypertension needed medical control, without retraction observed on CT angiography. All other patients had improved symptoms and good hypertension control. There was no significant difference in peak systolic pressure between upper and lower extremities (P＞0.05).

Covered-stent implantation in adults and adolescents with native CoA is efficient and safe, with good intermediate result. 

Covered-stent implantation is an efficient and safe method in the treatment of native CoA in adults and adolescents,with a good intermediate result. 

Huang, X, Fu, J, Huang, L, GUO, X, Pu, X, Treatment of Native Coarctation of the Aorta in Adult and Adolescents Using Covered-Stent Implantation.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14007003.html