Sheathless Guide Catheters During Transradial PCI

S heathless technology has been part of transradial procedures since the 1940s, when Sig Radner first performed transradial catheterization via radial cutdowns. Migration to femoral vascular access by the modified Seldinger approach using sheaths eclipsed the sheathless approach, which subsequently became lost in the fog of history. The transradial era reinvigorated the need for equipment optimized for the limited vascular space found in many radial arteries, and a variety of potential solutions to maximize working space for interventions are now maturing into the marketplace.