Impaired flow in left internal mammary artery grafts due to subclavian artery stenosis
B Hennen1, T Markwirth, B Scheller
1Department of Cardiology, University Hospitals Homburg/Saar, Germany. hennen@med-in.uni-sb.de
Abstract:
We report two cases of patients with left internal mammary artery (LIMA) grafts impaired by proximal stenosis of the subclavian artery. The functional impact of the subclavian lesions was investigated using flow-wire. The hemodynamic relevance of the lesions could be documented with the functional flow measurements in both instances. The relevance of preoperative evaluation of the subclavian artery is emphasized when it is planned to use the LIMA as coronary bypass. Moreover, the case reports indicate that percutaneous intervention of the subclavian artery is an effective treatment modality to restore adequate flow in the LIMA.
Related Concept Videos
Imbalances in Cardiac Output
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send blood...
The Arch of Aorta
Encircling the heart, the coronary arteries form a ring-like structure before...
Mitral Stenosis I: Introduction
Aortic Regurgitation I: Introduction
Aneurysm III: Interprofessional Care


