Korean J Thorac Cardiovasc Surg.  1997 Jun;30(6):580-584.

An Experimental Study of Percutaneously Adjustable Pulmonary Artery Banding Device

• Kang KH
• Kim SH
• Cho BK

Abstract

To overcome the problems of classical pulmonary banding procedure, we developed a percutaneously adjustable pulmonary artery banding device. The banding device consists of banding portion of zig-zag shaped self-expandable stainless steel wire, shaft portion made by a polyvinyl catheter and a screw adjuster which includes a bolt and a nut. As the screw moves, the diameter of banding portion changes. Four Mongrel dogs ranging from 15 kg to 20 kg in weight underwent the banding of the mid portion of descending aorta with this devices through the left thoracotomy. One month after operation, we evaluated the pressure changes by controling the banding with the devices and then the dogs were sacrificed to study the microscopic changes in the aorta. The diameter and circumference of the band could be easily and finely adjustable by the screw control. The pressure recordings revealed a linear increase and decrease in pressure gradient according to percutaneous adjustment of the banding device. Since the banding device can be easily placed and simply adjusted percutaneously, we hope the banding device may be applicable clinically to improving the safety of pulmonary artery banding and debanding procedures in the future.

Keyword

banding; device

MeSH Terms

Animals
Aorta
Aorta, Thoracic
Catheters
Dogs
Hope
Nuts
Polyvinyls
Pulmonary Artery*
Stainless Steel
Thoracotomy
Polyvinyls
Stainless Steel