Abstract: Objective To evaluate the feasibility and short- to mid-term efficacy of stent implantation for the treatment of coarctation of the aorta(CoA)complicated by hypertension in children. Methods A retrospective analysis was conducted on five children(3 boys and 2 girls, aged 6-10 years)diagnosed with CoA and hypertension. The clinical cha-racteristics, procedural details of interventional therapy, and follow-up outcomes were reviewed. Results The procedural success rate was 100%. The median trans-coarctation pressure gradient significantly decreased from 28.0(25.5,33.0)mmHg(1 mmHg=0.133 kPa)preoperatively to 5.0(3.5,6.5)mmHg postoperatively. Concurrently, the median diameter at the coarctation site increased significantly from 4.8(3.1, 6.1)mm to 18.0(13.0,21.5)mm after stenting. Two children required continued oral antihypertensive therapy with a single agent. During a median follow-up period of 15 months, no complications such as stent migration, aortic dissection, or recoarctation were observed. Conclusion Balloon-expandable stent implantation is a feasible and effective treatment for children with CoA and hypertension, demonstrating excellent immediate and short- to mid-term outcomes. However, long-term follow-up is necessary to confirm its sustained efficacy.

Key words: Coarctation of the aorta, Hypertension, Children, Interventional therapy, Stent