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Zane S. Jackson, BSc, Hiroyuki Ishibashi, MD, Avrum I. Gotlieb, MD, B

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Presentation on theme: "Zane S. Jackson, BSc, Hiroyuki Ishibashi, MD, Avrum I. Gotlieb, MD, B"— Presentation transcript:

1 Effects of anastomotic angle on vascular tissue responses at end-to-side arterial grafts 
Zane S. Jackson, BSc, Hiroyuki Ishibashi, MD, Avrum I. Gotlieb, MD, B.Lowell Langille, PhD  Journal of Vascular Surgery  Volume 34, Issue 2, Pages (August 2001) DOI: /mva Copyright © 2001 Society for Vascular Surgery and The American Association for Vascular Surgery Terms and Conditions

2 Fig. 1 Diagram of intermediate anastomosis (anastomotic angle = 45 degrees) identifying heel, toe, and bed. Lines with arrow heads depict simplified flow pattern. Asterisk indicates stagnation point. Journal of Vascular Surgery  , DOI: ( /mva ) Copyright © 2001 Society for Vascular Surgery and The American Association for Vascular Surgery Terms and Conditions

3 Fig. 2 Methylmethacrylate casts of anastomoses sites from acute (A), intermediate (B), and right- (C) angled model prepared 1 week after surgery. D, Cast of right-angle model 3 months after surgery. Note aneurysmal dilation of host vessel. Journal of Vascular Surgery  , DOI: ( /mva ) Copyright © 2001 Society for Vascular Surgery and The American Association for Vascular Surgery Terms and Conditions

4 Fig. 3 Longitudinal, hematoxylin and eosin–stained sections from unmanipulated left carotid artery (A) and from bed of acute (B), intermediate (C), and right-angle (D) anastomoses prepared 1 week after surgery (n = 3/group). E-J, Histologic sections, prepared three months after surgery, of upstream (E, G and I) and downstream (F, H and J) portions of bed from acute (E and F), intermediate (G and H) and right-angle (I and J) anastomoses. Figures are representative of n = 6 to 8 animals per group. Arrows identify IEL. Journal of Vascular Surgery  , DOI: ( /mva ) Copyright © 2001 Society for Vascular Surgery and The American Association for Vascular Surgery Terms and Conditions

5 Fig. 4 Distributions of intimal thickness (A), intimal cell count (B), medial thickness (C), and medial cell count (D) of beds of acute (n = 6), intermediate (n = 8), and right-angle anastomoses (n = 6) at 3 months after surgery. Position refers to distance along bed from position directly opposite heel of anastomoses. Asterisk indicates (P <.05) difference between anastomoses and unmanipulated vessels (n = 4). ANOVA followed by Dunnett's test. Journal of Vascular Surgery  , DOI: ( /mva ) Copyright © 2001 Society for Vascular Surgery and The American Association for Vascular Surgery Terms and Conditions

6 Fig. 5 Confocal photomicrographs of IEL of an unmanipulated carotid artery (A) and beds of right-angle (B), and acute (C) anastomoses prepared 3 weeks after surgery. Note extensive disruption of elastin at anastomoses. Journal of Vascular Surgery  , DOI: ( /mva ) Copyright © 2001 Society for Vascular Surgery and The American Association for Vascular Surgery Terms and Conditions

7 Fig. 6 Spatial distribution of total elastin surface area within IEL of beds of acute (n = 4), intermediate (n = 6), and right-angle (n = 4) models compared with unmanipulated arteries (n = 4). Data are percent of elastin surface area present within microscope field represented as mean ± SE. Axial position is as defined in legend to Fig 4. Open symbols represent significant differences (P <.05) between experimental and unmanipulated vessels. ANOVA followed by Dunnett's test. Journal of Vascular Surgery  , DOI: ( /mva ) Copyright © 2001 Society for Vascular Surgery and The American Association for Vascular Surgery Terms and Conditions

8 Fig. 7 Gelatin zymography of protein extracts from control carotid artery and bed of acute, intermediate, and right-angle anastomoses prepared 1 week after surgery (n = 3/group). Journal of Vascular Surgery  , DOI: ( /mva ) Copyright © 2001 Society for Vascular Surgery and The American Association for Vascular Surgery Terms and Conditions

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