The Post‑Surgery Epicardial Pacing Wires segmentation by application distinguishes three primary clinical settings: cardiac surgery, thoracic surgery, and congenital heart surgery. Cardiac surgery—encompassing coronary artery bypass grafting, valve repair/replacement, and left‑ventricular assist device implantation—accounts for roughly 65 % of total demand, reflecting the high incidence of postoperative conduction disturbances in these procedures and the reliance on temporary epicardial pacing for hemodynamic stabilization. Thoracic surgery, which includes lung resections and esophageal operations, represents about 20 % of the market; pacing is required less frequently but remains critical when intra‑operative manipulation of the pericardium induces arrhythmias. Congenital heart surgery contributes the remaining 15 %, driven by pediatric interventions where epicardial pacing supports postoperative rhythm management in structurally complex repairs. Together, these application sub‑segments shape the overall market size by allocating resources, R&D focus, and production volumes according to procedural frequency and clinical necessity.