Morphologic changes of the saphenous vein Y-composite graft based on the left internal thoracic artery: 1-year intravascular ultrasound study Ho Young.

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Morphologic changes of the saphenous vein Y-composite graft based on the left internal thoracic artery: 1-year intravascular ultrasound study Ho Young Hwang, MD, PhD, Bon-Kwon Koo, MD, PhD, Se Jin Oh, MD, Ki-Bong Kim, MD, PhD The Journal of Thoracic and Cardiovascular Surgery Volume 149, Issue 2, Pages 487-493.e1 (February 2015) DOI: 10.1016/j.jtcvs.2014.08.056 Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

Figure 1 Measurement of the luminal diameter of the saphenous vein and the proximal and distal parts of the left internal thoracic artery composite grafts using the quantitative coronary angiographies performed early (A and B) and 1 year (C and D) after coronary artery bypass grafting in a 70-year old man. The mean diameter of the saphenous vein decreased from 4.53 mm to 2.83 mm during the first year after coronary artery bypass grafting. p-LITA, Proximal left internal thoracic artery; d-LITA, distal left internal thoracic artery; SV, saphenous vein; OM, obtuse marginal coronary artery; LAD, left anterior descending coronary artery; PDA, posterior descending coronary artery. The Journal of Thoracic and Cardiovascular Surgery 2015 149, 487-493.e1DOI: (10.1016/j.jtcvs.2014.08.056) Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

Figure 2 Absolute and percentage decreases in the diameter of the saphenous vein according to the number of distal anastomoses (A and B), age (C and D), and the diameter of the saphenous vein at the early quantitative coronary angiography (E and F). SV, Saphenous vein; QCA, quantitative coronary angiography. The Journal of Thoracic and Cardiovascular Surgery 2015 149, 487-493.e1DOI: (10.1016/j.jtcvs.2014.08.056) Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

Figure 3 Images of intravascular ultrasonography of the proximal left internal thoracic artery and saphenous vein in the same patient as in Figure 1. The lumen of the proximal left internal thoracic artery and saphenous vein show a thin intima-media without abnormal plaques. p-LITA, Proximal left internal thoracic artery; SV, saphenous vein. The Journal of Thoracic and Cardiovascular Surgery 2015 149, 487-493.e1DOI: (10.1016/j.jtcvs.2014.08.056) Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

Figure E1 Changes in the diameter of the proximal internal thoracic artery (A), saphenous vein (B), and distal internal thoracic artery (C) 1 year after coronary artery bypass grafting. The Journal of Thoracic and Cardiovascular Surgery 2015 149, 487-493.e1DOI: (10.1016/j.jtcvs.2014.08.056) Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

Figure E2 Correlations between the quantitative coronary angiography and intravascular ultrasound results for measurement of the luminal diameter of the saphenous vein (A) and proximal internal thoracic artery segments (B). QCA, Quantitative coronary angiography; IVUS, intravascular ultrasound. The Journal of Thoracic and Cardiovascular Surgery 2015 149, 487-493.e1DOI: (10.1016/j.jtcvs.2014.08.056) Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions