RT Journal Article SR Electronic T1 Transcatheter occlusion of the patent ductus arteriosus with Cook detachable coils. JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 531 OP 535 DO 10.1136/hrt.76.6.531 VO 76 IS 6 A1 A. J. Tometzki A1 R. Arnold A1 I. Peart A1 N. Sreeram A1 J. M. Abdulhamed A1 M. J. Godman A1 R. G. Patel A1 D. J. Kitchiner A1 F. A. Bu'Lock A1 K. P. Walsh YR 1996 UL http://heart.bmj.com/content/76/6/531.abstract AB OBJECTIVE: To report initial experience with a new occlusion device for native and residual patent ductus arteriosus. DESIGN: Descriptive study of consecutive non-randomised patients undergoing a new method of patent ductus arteriosus closure with detachable coils. SETTING: Tertiary centres for paediatric cardiology. PATIENTS: 71 consecutive patients, aged 1.2-22 years, with a patent ductus arteriosus (PDA) underwent elective transcatheter closure. 45 had native PDAs (group A) with a minimum diameter of 1.0 mm-5.0 mm (median 2.0 mm). A further 26 had undergone one or more previous occlusion attempts (group B). INTERVENTIONS: A total of 133 detachable (Cook) spring coils were successfully implanted in 70 patients. The procedure was performed transvenously in 51 patients, retrograde arterially in 13, and by both routes in a further 6 patients. One 5 mm coil migrated but was successfully retrieved. MAIN OUTCOME MEASURES: In group A colour flow Doppler echocardiography showed that complete occlusion was achieved in 40/45 (89%) at 24 hours, 41/45 (91%) at 1 month, and 44/45 (98%) by 6 months post procedure. Occlusion rates in residual PDAs were 22/25 (88%) occluded at 24 hours, 23/25 (92%) at 1 month, and 24/25 (96%) at 6 months follow up. CONCLUSIONS: Transcatheter occlusion using detachable (Cook) spring coils is a safe and effective alternative to presently available devices. The delivery system allows full retrieval of the coil until a satisfactory position is obtained.