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为探讨经导管堵塞动脉导管未闭(PDA)术的效果,我们经导管堵塞PDA患儿117例,年龄4.52岁±2.86岁。其中外科手术后再通3例,2例伴肺动脉瓣狭窄(PS),1例伴主动脉缩窄(COA),1例伴右位主动脉弓。结果:42例应用可回收弹簧圈(pfm和Cook Inc),其PDA最窄处直径(1.94±0.85)mm,堵塞均获成功;合并PS或COA者,先作球囊扩张,再行堵塞术。另75例应用Amplatzer堵塞器也均一次堵塞成功,PDA最窄处直径(3.83±1.25)mm。所有病例随访1月～4.5年,均无残余分流及任何并发症。结论:可控弹簧圈主要应用于直径小于2.5mm PDA,而直径大于或等于2.5mm PDA则选用Am-platzer堵塞器。
To explore the effect of transcatheter occlusion of patent ductus arteriosus (PDA), we blocked 117 cases of PDA by catheter, aged 4.52 ± 2.86 years old. There were 3 cases after surgery, 2 cases with pulmonary stenosis (PS), 1 case with aortic constriction (COA) and 1 case with right aortic arch. Results: In 42 cases, the recoverable coil (pfm and Cook Inc) was used. The diameter of the narrowest PDA was 1.94 ± 0.85 mm, and the clogging was successful. In the patients with PS or COA, balloon dilatation and blockage were performed . In the other 75 cases, Amplatzer occluders were also blocked successfully. The narrowest diameter of PDA was (3.83 ± 1.25) mm. All cases were followed up for 1 month to 4.5 years, no residual shunt and any complications. Conclusion: The controllable coils are mainly used in PDA with diameter less than 2.5mm, while PDA with diameter greater than or equal to 2.5mm use Am-platzer plug.