1. Durability of the in situ saphenous vein arterial bypass: A comparison of primary and secondary patency 
Dennis F. Bandyk, M.D., Hermann W. Kaebnick, M.D., Gary W. Stewart, M.D., Jonathan B. Towne, M.D. 
Journal of Vascular Surgery 
Volume 5, Issue 2, Pages (February 1987)
DOI: / (87)
Copyright © 1987 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

2. Fig. 1
Patency for 61 femoropopliteal in situ saphenous vein bypasses calculated by life-table method. Open circles indicate primary patency and closed circles indicate secondary patency. Difference in primary and secondary patency was statistically significant (p < ) by both log rank of significance and Wilcoxon tests.
Journal of Vascular Surgery 1987 5, DOI: ( / (87) )
Copyright © 1987 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

3. Fig. 2
Patency for 128 femorotibial and three femoropopliteal (isolated segment) in situ saphenous vein bypasses. Open circles indicate primary patency and closed circles indicate secondary patency. Patency difference was statistically significant by both log rank (p < 0.006) and Wilcoxon (p < 0.005) tests.
Journal of Vascular Surgery 1987 5, DOI: ( / (87) )
Copyright © 1987 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

4. Fig. 3
B-mode image (left) and velocity spectra (right) from a femoroperoneal in situ saphenousvein bypass. Top, Duplex examination 7 days after operation identified a retained valve cusp by marked increase in peak velocity and spectral broadening just distal to valve. Bottom, after valve cusp excision, no significant flow disturbance is present at valve site and peak systolic flow velocity increased from 24 to 50 cm/sec.
Journal of Vascular Surgery 1987 5, DOI: ( / (87) )
Copyright © 1987 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

5. Fig. 4
Temporal distribution of in situ saphenous vein bypass revision. Rate of graft revision for each postoperative time interval calculated by dividing number of revisions by number of patent grafts at risk.
Journal of Vascular Surgery 1987 5, DOI: ( / (87) )
Copyright © 1987 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions