Transcatheter closure of large patent ductus arteriosus at high altitude with a novel nitinol device

Abstract

The Nitocclud PDA-R device is safe and effective and can easily close very large PDAs. This device has a high rate of complete occlusion within 1 year and is easily retrieved if embolized.

Multicenter nit‐occlud® PDA‐R patent. Ductus arteriosus occlusion device trial: Initial and six‐month results

“…Probably, this type of ducts may be best served with an Amplatzer TM Vascular Plug. In keeping with our findings, a recent PDA study reported a series of 51 high‐altitude patients with large PDAs (mean size 4.6 mm, 25% being larger than 6 mm) who underwent successful catheter closure with Nit‐Occlud ® PDA‐R, demonstrating complete shunt closure rates in all patients at one‐year follow‐up despite high baseline systolic pulmonary artery pressure.…”

“…Details of this device have already been described . Briefly, the Nit‐Occlud ® PDA‐R consists of a one‐piece 0.006 inch nitinol wire mesh with very low radial force (9 N, 30% lower than the Amplatzer Duct Occluder), making it less traumatic and superelastic.…”

“…The device is sized according to the external stent diameter, which has to be 1.5–2 times larger than the minimum diameter of the defect. Several device sizes enable occlusion of PDAs from 2 to 8 mm in diameter (Table ) .…”

Use of the Amplatzer Vascular Plug II Device to Occlude Different Types of Patent Ductus Arteriosus in Pediatric Patients

“…Since the first report of transcatheter PDA closure by Porstmann et al there have been huge improvements in this procedure, mainly due to the development of more simple, safe, and effective devices. This has lead operators to attempt closure of larger PDAs in smaller patients …”

Historical Aspects of Transcatheter Treatment of Heart Disease in Children

“…Subsequently a number of other devices were described and these include: botallooccluder [193], buttoned device [194][195][196], clamshell septal umbrella [197], Gianturco coil [198], Duct Occlud pfm [199], detachable (Cook and Flipper) Coils [200][201][202], Gianturco-Grifka vascular occlusion device (GGVOD) [203], polyvinyl alcohol (Ivalon R) foam plug [204], infant buttoned device [205,206], Amplatzer duct occluder [207,208], folding plug buttoned device [209],wireless PDA devices [210,211], reinforced duct-occlude pfm [212], Amplatzer muscular ventricular septal defect occluder [213], Amplatzer vascular plug [214], Nit-Occlud coils [215], Inoue single-branched stent graft [216], non-ferromagnetic Inconel MReye embolization coils [217], Amplatzer vascular plug with prefilled embolization coils [218], self-expanding platinum-coated Nitinol device [219], Chinese self-expandable occluder, similar to the Amplatzer occluder [220], Amplatzer Vascular Plug II [221], Cardio-O-Fix occluder [222], NitOcclud PDA-R (reverse) device [223] and perhaps, others.…”