摘要

Internal mammary artery perforator (IMAP) flap is the major tissue source for head and neck reconstructive surgery. However, the flap survival is still uncertain due to the anatomical variations of the IMAP. In this study, we optimized the flap design with digital subtraction angiography (DSA) and metal pins marked on the chest, and achieved a 100% survival rate. 20 patients with head and neck defect were subjected to preoperative DSA to trace the IMAP. 14 were selected to receive reconstruction surgery using IMAP flaps. Flap design and survival rate were recorded. The intro-operative examination for distribution and shape of IMAP confirmed the preoperative DSA imaging on all cases. Each flap had a suitable perforator confirmed during dissection. There was no occurrence of postoperative necrosis. All donor sites were closed primarily. IMAP flap design assisted with preoperative DSA and metal pins marked on the chest can markedly increase operation success rate.