Perpendicular insertion of Dacron patch for aortoplasty in adult coarctation of aorta to increase circular elasticity.

Circular elasticity cannot be obtained in standard patch aortaplasty in patients with coarctation of aorta. We inserted Dacron patch perpendicularly to standard fashion. The creases of Dacron patch became parallel to descenden aorta. Circular elasticity, that reduces both true and false aneurysm incidence in the long-termperiod, can be obtained with this modification.