Morphological description of explanted venous valve leaflet remnants.

Table 2: Morphological description of explanted venous valve leaflet remnants.

Group	Animal I	Animal II
Group I	Thickened and hypertrophied remnants; no thrombi	Thickened and hypertrophied remnants; minor sinus thrombosis
Group II	Thickened and hypertrophied remnants; minor sinus thrombosis	Thickened and hypertrophied remnants; thrombus on the entire graft length
Group III	Leaflet adhesion on the venous wall; no thrombi	Leaflet adhesion on the venous wall; minor sinus thrombosis