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Therefore, a large left-to-right shunt through a patent ductus arteriosus (PDA) results in left atrial and left ventricular enlargement. The pulmonary veins and the ascending aorta can also be dilated with a sufficiently large patent ductus arteriosus (PDA).
After completion of an intra-luminal procedure and removal of the procedural device, a vascular closure system is used to close arteriotomy 132, as follows. As shown in FIG. 2, a guiding system including a pair of stabilization wire guides 114 is inserted into sheath 106, which may be indwelling at the end of the procedure, or inserted anew, or sheath 106 may replace a sheath that was used during the procedure.