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Table 3 Venous graft quality, mesh-size, surgery, transit time flow measurement (TTFM), coronary status in occluded grafts (n = 5)

From: One-year patency control and risk analysis of eSVS®-mesh-supported coronary saphenous vein grafts

Graft No. 1 2 3 4 5
Graft - Target Coronary Vessel V-RIVP V-RIVP V-RCA V-RCA V-D-(M)
SVG Harvest technique (Endoscopic: E, Open: O) E E O E E
SVG Harvest site (magna: m, parva: p) m m p m m
SVG Varicosis1) Yes Yes No No Yes
SVG Quality2) Moderate Poor Poor Poor Moderate
SVG Mesh size (mm) 3.5 4.0 4.5 4.0 4.0
Perfusion: OPCAB, ECC, MECC OPCAB MECC ECC OPCAB ECC
Aorta: Clamping3) (C), Heartstring (H) C C C H C
Native Coronary run-off Poor: Calcified Moderate Poor: Calcified Moderate Moderate
Redo Proximal anastomosis (n) 0 0 0 0 0
Redo Distal anastomosis (n) 0 0 0 0 0
TTFM: Flow (ml/min) 47 21 30 15 214
TTFM: Pulsatility index 1.2 0.9 0.8 1.0 1.3
  1. V- : « Veingraft to… », RIVP: Ramus interventricularis posterior, RCA: Right coronary artery, D: Ramus diagonalis, M: Ramus marginalis, SVG: Saphenous vein graft, E: Endoscopic saphenous vein harvesting, O: Open saphenous vein harvesting, m: Vena saphena magna, p: Vena saphena parva, C: Anterior tangential sideclamping of the ascending aorta, H: HEARTSTRING III Proximal Seal System (Maquet, Holding B.V. & Co. KG., Gossau, Switzerland), TTFM: Transit time flow-measurement, 1) Signs of varicosis such as blow-outs, focally thinned out vein graft wall, dilated veingraft > 4.5 mm over > 1/3 of graft length, 2) Vein graft quality according to presence of side branch tears, wall thickness, signs of varicosis such as blow-outs, thinned out vein graft wall and dilated graft > 4.5 mm diameter over > 1/3 of graft length, 3) Partial side clamping of the ascending aorta