title: Coil occlusion for patent ductus arteriosus in Japan.
abstract: We surveyed Japanese experience of coil occlusion of patent ductus arteriosus up to 30 September 1996 by sending questionnaires to 175 hospitals. Thirty-four hospitals reported outcome data for 231 procedures in 218 patients. Successful implantation was achieved in 94% and acute complete closure of the ductus occurred in 71% of those in whom implantation of the coil was successful. Of the latter, 83% reported late complete closure. When those patients who underwent reocclusion for residual shunt are included, 89% attained complete closure. No life-threatening complications have occurred so far. Late reopening was reported in 3 cases. Although the angiographic type of ductus was significantly related to successful implantation (p < 0.01), there was no significant correlation with complete occlusion. Ductuses with a minimum diameter greater than 3 mm had a decreased chance of successful implantation, whereas those less than 2 mm had a greater incidence of complete closure.
authors.affiliation: Department of Pediatrics, School of Medicine, Sapporo Medical University, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Tomita
authors.forename: S
authors.initials: S
authors.lastname: Fuse
authors.forename: T
authors.initials: T
authors.lastname: Akagi
authors.forename: K
authors.initials: K
authors.lastname: Koike
authors.forename: M
authors.initials: M
authors.lastname: Kamada
authors.forename: T
authors.initials: T
authors.lastname: Kamiya
authors.forename: K
authors.initials: K
authors.lastname: Momma
authors.forename: A
authors.initials: A
authors.lastname: Ishizawa
authors.forename: S
authors.initials: S
authors.lastname: Chiba
mesh_terms: D002648:Child; D002675:Child, Preschool; D004374:Ductus Arteriosus, Patent / Q000628:therapy*; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D016896:Treatment Outcome