What is the blood supply to the deltopectoral flap?

What is the blood supply to the deltopectoral flap?

• A. Brachial artery
• B. Internal mammary off subclavian
• C. Axillary artery
• D. Subscapular artery

Answer: (B)

The blood supply to the deltopectoral flap primarily comes from the internal mammary artery, which is a branch of the subclavian artery. This flap is historically developed based on the vascular supply from the internal mammary artery due to its ability to provide a consistent blood flow to the tissue used in reconstruction. When the deltopectoral flap is elevated, the pedicle, containing the internal mammary artery and its accompanying veins, remains intact, allowing reliable perfusion when the flap is transferred. This connection is important for ensuring that the flap remains viable after transplantation to the recipient site. Other arteries listed, such as the brachial artery, axillary artery, and subscapular artery, do not supply the deltopectoral flap. The brachial artery primarily supplies the arm and forearm structures, the axillary artery mainly supplies the shoulder and upper arm regions, while the subscapular artery acts as a source for various scapular and back tissues, but none are the mainstay for the vascular supply of the deltopectoral flap.

The blood supply to the deltopectoral flap primarily comes from the internal mammary artery, which is a branch of the subclavian artery. This flap is historically developed based on the vascular supply from the internal mammary artery due to its ability to provide a consistent blood flow to the tissue used in reconstruction.

When the deltopectoral flap is elevated, the pedicle, containing the internal mammary artery and its accompanying veins, remains intact, allowing reliable perfusion when the flap is transferred. This connection is important for ensuring that the flap remains viable after transplantation to the recipient site.

Other arteries listed, such as the brachial artery, axillary artery, and subscapular artery, do not supply the deltopectoral flap. The brachial artery primarily supplies the arm and forearm structures, the axillary artery mainly supplies the shoulder and upper arm regions, while the subscapular artery acts as a source for various scapular and back tissues, but none are the mainstay for the vascular supply of the deltopectoral flap.