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  • Title: Long-term outcome of transcatheter coil closure of small to large patent ductus arteriosus.
    Author: Patel HT, Cao QL, Rhodes J, Hijazi ZM.
    Journal: Catheter Cardiovasc Interv; 1999 Aug; 47(4):457-61. PubMed ID: 10470477.
    Abstract:
    Coil closure of patent ductus arteriosus (PDA) has become an accepted alternative to surgical closure in most pediatric cardiac centers. However, little is known about the mid-to long-term outcome of this procedure. Therefore, we evaluated the immediate, short-, and long-term outcome of transcatheter coil closure (TCC) of PDA using single or multiple Gianturco coils or the Gianturco-Grifka Vascular Occlusive Device (GGVOD). One hundred forty-nine patients underwent an attempt at TCC of their PDAs at a median age of 2.4 years (2 weeks to 55 years) and median weight of 13.5 kg (2.3-87 kg). There were 33 patients < 1 year of age. The median PDA minimal diameter was 2 mm (0.4-7 mm) with 26 patients whose PDA minimal diameter was > 4 mm. A 4 Fr catheter was used for coil deployment in 136 patients, a 3 Fr in 4, and an 8 Fr in 4 patients who received the GGVOD. A single coil was used in 77 patients and multiple coils (2-6) were used in 66 patients. One hundred forty-six patients had successful closure (142 had immediate complete closure and 4 had residual shunt), 3 patients failed the initial attempt (2 underwent surgical ligation and 1 had a successful second attempt a year later). Of the four patients with residual shunt, three underwent a second procedure with implantation of 1-3 coils resulting in complete closure in all and one patient had spontaneous resolution of the residual shunt. Complications were encountered in nine patients: six had coil migration with successful retrieval in four; two had left pulmonary artery stenosis (2.4 kg and 6.3 kg infants), and one patient had loss of femoral arterial pulse. The median fluoroscopy time was 16 min (2-152 min). One hundred forty-two patients had the procedure as an outpatient, five patients stayed greater than 24 hr, and two of these patients were in hospital for 1 month for noncardiac reasons. At a median follow-up interval of 3.0 years (1 month to 5.1 years), there were no episodes of delayed coil migration, delayed recanalization, thromboembolic episodes, or bacterial endocarditis. Lung perfusion scans performed at a median follow-up interval of 1.6 years in 31 patients who received multiple coils revealed 45% +/- 5% blood flow to the left lung. Long-term follow-up of coil closure of PDA indicates that the technique is safe and effective for most patients with PDA up to a diameter of 7 mm.
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