Key result
Preoperative ITA angiography guides harvest safety by identifying collateral blood flow to ischemic lower limbs.
Why the study?
The internal thoracic artery can serve as an important collateral source to chronically ischemic lower limbs, but its role before harvesting is not well established.
Case Report (n=2)
Careful preoperative examination, including selective angiography of the internal thoracic artery, is required before CABG in patients with chronically ischemic lower limbs to avoid serious vascular complications.
Based on the superior long-term results, internal thoracic artery is widely used for coronary artery bypass grafting. However, the vessel can play an important role as a collateral source to the chronically ischemic lower limbs. We reported two cases who underwent simultaneous revascularization to the myocardium and lower limbs because this particular condition was anticipated. Selective angiography of internal thoracic artery was useful to determine its role before harvesting in our cases. Careful preoperative examinations and choice of surgical approach are required for such patients to avoid serious vascular complications.
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Hayashida et al. (2000) conducted a case report in Chronically ischemic lower limbs requiring myocardial revascularization (n=2). Simultaneous revascularization to the myocardium and lower limbs was evaluated. Selective angiography of the internal thoracic artery was useful to determine its role as a collateral source to ischemic lower limbs before harvesting for coronary artery bypass grafting in two cases.
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