Varicoceles: a coaxial coil occlusion system.

A modified transfemoral technique for testicular venography and occlusion of the testicular vein (TV) was used to treat 30 patients with a total of 43 varicoceles (17 left-sided and 13 bilateral). Occlusion was satisfactory in all left varicoceles and 90% of right varicoceles. This coaxial technique facilitates subselective catheterization of the TV and its collaterals and enables coils to be placed deep within these vessels, either alone or in combination with detachable balloons.