Figure 2
Representative histological samples of non-patent and patent vessels after microsurgical anastomosis on femoral arteries and veins. The asterisks indicate the thrombosis, the triangles the sutures and the arrows the inflammatory infiltrate. (a) Representative image of a non-patent manual arterial anastomosis: Presence of high inflammatory infiltrate and thrombosis. (b) Robotic arterial anastomosis with presence of inflammatory infiltrate. (c) Patent manual anastomosis with inflammatory infiltrate. (d) Patent robotic with really low inflammatory infiltrate comparing previous images. (e) Non-patent venous anastomosis, with the presence of a chronic thrombus markedly occluding and expanding the vein lumen. (f) Robotic venous anastomosis with presence of a chronic thrombus partially occluding the vein lumen. (g) Patent manual vein anastomosis with low inflammatory infiltrate. (h) Patent robotic anastomosis with low inflammatory infiltrate. (i) Principal component analysis (PCA) results for Robotic (Rob, green dots) versus Manual (Man, blue dots) procedures. The grey line connects centroids (Rob and Man) of the two groups and highlights the degree of separation.
