alexa A new device for transcatheter closure of the patent ductus arteriosus. A feasibility study in dogs.
Pediatrics

Pediatrics

Pediatrics & Therapeutics

Author(s): Magal C, Wright KC, Duprat G Jr, Wallace S, Gianturco C

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Abstract A new device for transcatheter closure of the patent ductus arteriosus was developed and initially evaluated in the vasculature of adult mongrel dogs. The device consists of a nylon sack that can be made in various sizes and shapes. A small flexible crossbar attached to the distal end maintains the position of the sack while it is filled with a segment of modified guide wire. The device is delivered coaxially through a 10-Fr Teflon catheter and is easily repositioned or retrieved before release. The expansile force of the sack against the vessel wall can be varied, and its stability is easily checked prior to detachment. The device produced immediate and permanent vascular occlusion without inflammation or erosion. Over time, the entire unit became incorporated into the vessel wall by neointimal encasement. Nylon sacks offer a simple, unique method of closing virtually any ductus arteriosus without general anesthesia and major surgery.
This article was published in Invest Radiol and referenced in Pediatrics & Therapeutics

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