Which vessel is best suitable for a fem-pop bypass?

In considering the best vessel for a femoral-popliteal (fem-pop) bypass, the great saphenous vein is traditionally the preferred choice due to its size, accessibility, and suitability for creating a bypass. The great saphenous vein, often measuring around 6.0 mm or more in diameter, provides a larger conduit that can adequately carry blood flow, thereby decreasing the chances of complications.

The small saphenous vein, while sometimes used in vascular procedures, typically has a smaller diameter (around 3.0 mm); this size might lead to a higher risk of occlusion or insufficient blood flow when employed in a bypass procedure. Moreover, the small saphenous vein is less commonly harvested and used compared to the great saphenous vein.

The femoral artery is not a suitable choice for bypass grafting as it is part of the arterial circuit and serves as the inflow source in a fem-pop bypass. Similarly, the popliteal artery is a target destination of the bypass, meaning it cannot be utilized as the conduit for the graft.

Thus, the best options would be the great saphenous vein for its size and properties, making it highly suitable for creating a