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  • Title: New technique using temporary balloon occlusion for transcatheter closure of patent ductus arteriosus with Gianturco coils.
    Author: Dalvi B, Goyal V, Narula D, Kulkarni H, Ramakantan R.
    Journal: Cathet Cardiovasc Diagn; 1997 May; 41(1):62-70. PubMed ID: 9143771.
    Abstract:
    We describe our early experience with a new technique involving temporary balloon occlusion for transcatheter closure of patent ductus arteriosus (PDA) using single or multiple Gianturco coils. Coil occlusion was attempted in 21 patients of median age 3 (range 1-11) years, and angiographic PDA diameter 3.0 mm +/- 0.87 mm. The inflated balloon of a pulmonary wedge pressure catheter over a transductal wire was used to mechanically hold the first extruded loop of the coil at the pulmonary end of the duct. If a residual shunt persisted after the delivery of the first coil, additional coils were delivered with or without the balloon support. One to nine coils (median 2) of different sizes varying between 3-12 mm diameter and 4-15 cm length were used. Immediate angiographic occlusion rate was 47.6%. However color Doppler (CD) at 24 hours and at 6 weeks revealed complete closure in 66.6% and 80.9%, respectively. Blood transfusion was required in 2 (9.5%) patients. Three out of 56 coils (5.4%) embolized during deployment. The use of balloon occlusion is effective and safe in the treatment of ducti up to 4.7 mm. Residual shunts lend to occlude with time.
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