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目的 :本研究旨在评价血管腔内超声辅助盘圈关闭婴幼儿动脉导管未闭术的安全性和可行性。方法 :对 9例动脉导管未闭婴幼儿患者在血管腔内超声辅助下进行盘圈关闭术。结果 :所有 9例患者都成功地进行了血管腔内超声检查 ,无一例发生并发症。血管腔内超声显示动脉导管为一单层中等回声的管状结构 ,管壁厚度均匀。血管腔内超声测量的平均动脉导管最小内径为 3.0 8± 0 .71mm。 8例患者的盘圈关闭术成功 ,一例患者因动脉导管直径太大(5 .6 1mm)而未能成功。术后随访未发现残余分流 ,盘圈移位以及主动脉或肺动脉阻塞。结论 :血管腔内超声能够安全有效地评价婴幼儿动脉导管未闭 ,为盘圈关闭术提供了血管造影和超声心动图所不能得到的信息 ,从而帮助选择大小适宜的盘圈 ,减小盘圈栓塞和移位的危险性 ,提高手术的成功率。
Objective: This study was designed to evaluate the safety and feasibility of intravascular ultrasound assisted coil closure of patent ductus arteriosus in infants and young children. Methods: 9 cases of patent ductus arteriosus infants underwent intravascular ultrasound-assisted coil closure. Results: All 9 patients underwent endovascular ultrasonography, with no complications. Intravascular ultrasound shows that the ductus arteriosus is a monolayer of medium-echoidal tubular structures with uniform wall thickness. The mean diameter of the mean arterial catheter measured by intravascular ultrasound was 3.08 ± 0.71 mm. Coiling closure was successful in 8 patients, with one patient unsuccessful due to too large diameter of the ductus arteriosus (5.16 mm). Follow-up found no residual shunt, coil displacement and obstruction of the aorta or pulmonary artery. CONCLUSIONS: Intravascular ultrasound is safe and effective in assessing patent ductus arteriosus in infants and young children. It provides information that angiography and echocardiography are not available for coil closure to help select the appropriate coil and reduce the coil Embolism and the risk of displacement, improve the success rate of surgery.