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Unusual subclavian steal phenomenon
D Latifić-Jasnic1, D Zorman, A Cijan
1Clinic of Cardiology, University Medical Centre, Ljubljana, Slovenia.
Insights
An unusual subclavian steal syndrome occurred after coronary artery bypass surgery. Retrograde flow through the internal thoracic artery supplied blood to the arm due to blocked left subclavian and left anterior descending arteries.
Area of Science:
- Cardiovascular Surgery
- Vascular Surgery
- Interventional Cardiology
Background:
- Coronary artery bypass grafting (CABG) is a common procedure for treating coronary artery disease.
- Saphenous vein grafts (SVG) and internal thoracic artery (ITA) grafts are frequently used conduits.
- Subclavian steal syndrome (SSS) is a condition characterized by reversed blood flow in the subclavian artery.
Abstract:
A patient who had undergone myocardial revascularization with a saphenous vein graft to the left anterior descending artery and a left internal thoracic (mammary) artery graft to the 1st diagonal branch presented with an unusual form of subclavian steal syndrome. Occlusion of both the left subclavian and the left anterior descending arteries caused retrograde flow through the internal thoracic artery to the distal subclavian artery; the blood flow was supplied by the vein graft via the distal left anterior descending artery and diagonal branch.