Assessment of the hemodynamic significance of a left internal mammary artery graft‐pulmonary artery shunt in a post‐bypass patient using a doppler‐tipped guide wire
- 1 May 1993
- journal article
- case report
- Published by Wiley in Catheterization and Cardiovascular Diagnosis
- Vol. 29 (1) , 52-56
- https://doi.org/10.1002/ccd.1810290112
Abstract
We assessed the hemodynamic significance of a left internal mammary artery (LIMA) graft‐pulmonary artery (PA) fistula in a post‐bypass patient with chest pain. A Dopplertipped guide wire and quantitative coronary angiography (QCA) were used to demonstrate that flow through the proximal LIMA (14.0 ml/min) was similar to the distal LIMA's contribution of flow to the left anterior descending artery (LAD) (15.6 ml/min), suggesting that the fistula was not hemodynamically significant. Therefore, intravascular Doppler and quantitative angiography may be used to assess the hemodynamic significance of a LIMA‐PA fistula in a post‐bypass patient.Keywords
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