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Original ArticleOpen Access
Residual Patent Ductus Arteriosus Shunting After Single Gianturco Coil Occluding
Khowsathit P 
,
Khositseth A ,
Pongpanich Bh
,
Khositseth A ,
Pongpanich Bh Transcatheter occlusion with Gianturco coils has become the treatment of choice for
small patent ductus arteriosus (PDA). Coil occlusion was attempted in 20 patients with ductus
diameter less than 4 mm who did not require other cardiac surgery. Sixteen of 20 patients had
successful implantation. The mean age was 4.2 years. Their mean weight was 14.1 ± 5.9 kg. The
mean ductus diameter was 2.21 ± 0.91 mm (range 1-3.7 mm). Nine patients had complete
occlusion but 7 had residual shunting immediately after the procedure. However, 4 patients had
spontaneous resolution of residual shunts at 6 months after the procedure. The other 3 who had
diameter of ductus greater than 3 mm still had significant residual shunt at 6 months and 1 year
after the procedure. The second coil was successfully implanted in one of these 3 patients and the
closure of PDA was accomplished. We concluded that the second coil should be implanted if
the ductus diameter is greater than 3 mm and significant residual shunt is still demonstrated angiographically
after the first coil implantation.
Key word : Patent Ductus Arteriosus, Coil Occlusion
small patent ductus arteriosus (PDA). Coil occlusion was attempted in 20 patients with ductus
diameter less than 4 mm who did not require other cardiac surgery. Sixteen of 20 patients had
successful implantation. The mean age was 4.2 years. Their mean weight was 14.1 ± 5.9 kg. The
mean ductus diameter was 2.21 ± 0.91 mm (range 1-3.7 mm). Nine patients had complete
occlusion but 7 had residual shunting immediately after the procedure. However, 4 patients had
spontaneous resolution of residual shunts at 6 months after the procedure. The other 3 who had
diameter of ductus greater than 3 mm still had significant residual shunt at 6 months and 1 year
after the procedure. The second coil was successfully implanted in one of these 3 patients and the
closure of PDA was accomplished. We concluded that the second coil should be implanted if
the ductus diameter is greater than 3 mm and significant residual shunt is still demonstrated angiographically
after the first coil implantation.
Key word : Patent Ductus Arteriosus, Coil Occlusion
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