What is the primary purpose of using interventional sheaths?

The primary purpose of using interventional sheaths is to facilitate the introduction and manipulation of catheters, wires, and other devices during interventional procedures. They are designed to allow for longer lengths and guide curves, enabling operators to navigate the complex anatomical pathways more effectively. By using a sheath, the clinician can access distant vessels or anatomical sites without the need to repeatedly puncture the skin, which reduces trauma and potentially minimizes complications.

Interventional sheaths are critical in providing the necessary support and stability when negotiating the vasculature during procedures such as catheter placements or embolizations. Their design allows for smooth transitions between different devices and aids in maintaining access to the vascular system for extended periods, which is particularly important in complex interventional cases.

In terms of other choices, while imaging access is important, it is not the primary function of the sheath itself. Safety during radiation exposure is relevant for the overall procedure but not directly related to the purpose of the sheath. Lastly, while sedation management might be influenced by procedural efficiency with sheath use, it is not a primary purpose of their design or function.