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Matadial Ojha, PhD, Richard L Leask, K

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Presentation on theme: "Matadial Ojha, PhD, Richard L Leask, K"— Presentation transcript:

1 Histology and morphology of 59 internal thoracic artery grafts and their distal anastomoses 
Matadial Ojha, PhD, Richard L Leask, K.Wayne Johnston, MD, Tirone E David, MD, Jagdish Butany, MD  The Annals of Thoracic Surgery  Volume 70, Issue 4, Pages (October 2000) DOI: /S (00)

2 Fig 1 (A) The distal anastomosis and the central anastomotic cross section. (B) A central anastomotic cross section indicating the anastomotic measurement sites (hood, sutures, and floor). The hood (the section of the internal thoracic artery) is on the top and the floor (the section of the left anterior descending coronary artery [LAD]) is at the bottom. The inner black line (arrows in all relevant figures) is the internal elastic lamina and is seen on both the left internal thoracic artery (LITA) and the native coronary artery. Significant intimal thickening is seen on the hood and the suture sites (S). The Annals of Thoracic Surgery  , DOI: ( /S (00) )

3 Fig 2 Sections of an early and late left internal thoracic artery (LITA) graft body (A, B), anastomostic suture sites (S) (C, D), hood of the anastomosis (E, F), and floor of the host left anterior descending coronary artery (LAD) (G, H). The early sample (case 7) was in situ for 2 weeks whereas, the late sample (case 18) was in situ for more than 6 years. Arrows indicate the internal elastic lamina; arrow- heads show suture site neointima. (Movat pentachrome stain.) The Annals of Thoracic Surgery  , DOI: ( /S (00) )

4 Fig 3 Sections of an old sapheous vein graft (SVG) and left internal thoracic artery (LITA) graft taken from the graft body (A, B), suture site (S) (C, D), hood (E, F) and floor (G, H). Both grafts were removed from the same patient, 5.6 years after bypass operation (late case 7). Arrows indicate the internal elastic lamina; arrowheads show suture site neointima. (LAD = left anterior descending coronary artery;OM = obtuse marginal coronary artery.) (Elastic trichrome stain.) The Annals of Thoracic Surgery  , DOI: ( /S (00) )

5 Fig 4 Comparison of left internal thoracic artery (LITA) (n = 18) and saphenous vein graft (SVG) (n = 16) [6] intimal thickening. The error bars represent 1 standard deviation. The Annals of Thoracic Surgery  , DOI: ( /S (00) )

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