随着小儿心血管外科手术的开展，日益要求术前对心血管复杂畸形的病理解剖及血液动力学改变能有详细的了解。近年来应用经皮穿刺心导管检查术，取得了较好效果，但较常出现出血并发症。因此，我院应用短斜面穿刺针及改变穿刺点，把传统沿用“直刺”进针改为“斜刺”进针，减少 With the advent of cardiovascular surgery in children, there is an increasing need to have a detailed understanding of the preoperative pathological anatomy and hemodynamic changes of complex cardiovascular deformities. In recent years the application of percutaneous cardiac catheterization, and achieved good results, but more often bleeding complications. Therefore, our hospital application of short bevel puncture needle and change the puncture point, the traditional use of “straight puncture” needle into “oblique puncture” needle, reduce