{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T15:50:09Z","timestamp":1753890609183,"version":"3.41.2"},"reference-count":23,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2024,12,13]],"date-time":"2024-12-13T00:00:00Z","timestamp":1734048000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Cardiovasc. Med."],"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>To evaluate the feasibility, effectiveness and assistant effect of 3D printed aortic model in the treatment on congenital coarctation of the aorta (CoA) in adolescents and adults.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>From December 2018 to December 2023, a total of 10 patients with congenital coarctation of aorta underwent percutaneous balloon dilatation covered stent implantation in the department of cardiovascular surgery, Xijing Hospital. There were 6 males and 4 females whose average age was (27.68\u2009\u00b1\u200913.45) years. One case complicated with ventricular septal defect (VSD). The CT data of aorta were collected before operation, and the aorta was reconstructed by Mimics software and printed with 3D printing technology. The operation simulation was performed before operation to determine the best operation plan. The clinical data during hospitalization and follow-up were analyzed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>All the patients of CoA were successfully treated with percutaneous balloon dilatation covered stent implantation. The narrowest average diameter of CoA increased from (4.35\u2009\u00b1\u20092.61)\u2005mm before operation to (16.84\u2009\u00b1\u20091.99)\u2005mm immediately after operation (<jats:italic>P<\/jats:italic>\u2009&amp;lt;\u20090.05). The mean transconstrictive systolic pressure difference decreased from (81.29\u2009\u00b1\u200918.72)\u2005mmHg before operation to (15.52\u2009\u00b1\u20097.47)\u2005mmHg after operation (<jats:italic>P<\/jats:italic>\u2009&amp;lt;\u20090.05). The mean systolic blood pressure of the right upper limb decreased from (182.05\u2009\u00b1\u200938.99)\u2005mmHg preoperatively to (141.95\u2009\u00b1\u200932.11)\u2005mmHg postoperatively (<jats:italic>P<\/jats:italic>\u2009&amp;lt;\u20090.05). The mean systolic blood pressure of the lower limb increased from (121.52\u2009\u00b1\u200927.84)\u2005mmHg preoperatively to (131.81\u2009\u00b1\u200932.39)\u2005mmHg postoperatively (<jats:italic>P<\/jats:italic>\u2009&amp;lt;\u20090.05). Two patients with PDA and VSD underwent interventional occlusion at the same time without shunt. During the period of hospitalization and follow-up, there were significant cardiovascular complications.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Percutaneous balloon dilatation covered stent implantation is effective in the treatment of adolescents and adults with CoA in the short and medium term, with fewer complications, and the long-term effect needs furthshdie1er study.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fcvm.2024.1429470","type":"journal-article","created":{"date-parts":[[2024,12,13]],"date-time":"2024-12-13T14:22:18Z","timestamp":1734099738000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Three-dimensional printing-guided percutaneous transcatheter replacement in coarctation of the aorta: a retrospective 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