What type of sutures are preferred for anastomosing blood vessels?

Fine non-absorbable double-armed sutures are preferred for anastomosing blood vessels primarily due to their strength and reliability. When performing vascular anastomosis, it is critical to ensure that the suture material can withstand the pressures of blood flow without breaking or causing leakage. Non-absorbable sutures maintain their tensile strength over time, which is essential for keeping the anastomosis intact during the healing process.

The fine nature of these sutures allows for precise placement and minimizes tissue trauma, which is important in delicate vascular structures. Double-armed sutures facilitate easier and quicker placement, as they can pull both sides of the vessel together effectively without needing to tie multiple knots on either end.

In contrast, absorbable sutures, while useful in certain scenarios, may lose their strength before the tissues are fully healed, which could jeopardize the integrity of the anastomosis. Silk sutures, though non-absorbable and historically used, can provoke a greater tissue reaction and are not as commonly used in modern vascular procedures. Braided sutures, while strong, may also induce an inflammatory response and are less favorable due to the potential for increased thrombogenicity compared to the smooth surface of fine non-