ABC | Volume 111, Nº5, November 2018

Clinicoradiological Correlation Teixeirense et al Percutaneous occlusion of a large ductus arteriosus Arq Bras Cardiol. 2018; 111(5):753-754 Figure 1 – A) Pre-intervention chest x-ray. There is an overall increase in the cardiac silhouette, with prominence of the right atrium, left ventricle and vascular pedicle, in addition to the pulmonary vascular network. B) Chest X-ray approximately 8h after occlusion of the defect, showing the significant decrease in the cardiac volume, notably in the right atrium and the vascular pedicle, as well as a decrease in the pulmonary vascular network. Figure 2 – A) Angiography of the aorta showing the presence of a large ductus arteriosus with a minimum diameter of 4 mm. B) Implant of Amplatzer® device ADO I-10/8, with complete occlusion of the defect. PDA: patent ductus arteriosus 1. Kang SL, Jivanji S, Mehta C,Tometzki AJ, Derrick G, Yates R, et al. Outcome after transcatheter occlusion of patent ductus arteriosus in infants less than 6Kg: A National Study from United Kingdom and Ireland. Catheter Cardiovasc. Interv. 2017; 90(7):1135-44. 2. Zhou K, Tang J, Hua Y,Shi X, Wang Y, Qiao L, et al. Transcatheter occlusion of patent ductus arteriosus in a preterm infant and review of literatures. Zhonghua Er Ke Za Zhi. 2016; 54 (11): 43-6. 3. Garg G, Garg V, Prakash A. Percutaneous closure of a large patent ductus arteriosus in a preterm newborn weighing 1400g without using arterial sheath: an innovative technique. Cardiol Young. 2018;28(3):494-7. References This is an open-access article distributed under the terms of the Creative Commons Attribution License situation, considering the several complications that may affect patient evolution, such as frequent respiratory infections, as well as the progression of pulmonary arterial hypertension to Eisenmenger's syndrome. The occlusion techniques through interventional catheterization are safe and simple, and with catheter profile improvement and the multiple devices available for clinical use, they are currently the first choice techniques for the treatment of young infants and children. 1 Several articles have been published on the experience of several groups showing the practice of occlusion of ductus arteriosus in extremely preterm infants, 2,3 using only venous access and monitoring the implant through echocardiography, thus reserving the surgical technique for special anatomical situations. 754