Early adaptation of human lower extremity vein grafts: wall stiffness changes accompany geometric remodeling Jeffrey G. Jacot, BS, Ibrahim Abdullah,

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Early adaptation of human lower extremity vein grafts: wall stiffness changes accompany geometric remodeling Jeffrey G. Jacot, BS, Ibrahim Abdullah, BS, Michael Belkin, MD, Marie Gerhard-Herman, MD, Peter Gaccione, MA, Joseph F. Polak, MD, MPH, Magruder C. Donaldson, MD, Anthony D. Whittemore, MD, Michael S. Conte, MD Journal of Vascular Surgery Volume 39, Issue 3, Pages 547-555 (March 2004) DOI: 10.1016/j.jvs.2003.09.045

Fig 1 A, M-mode ultrasound scan image of graft cross-section used for dimensional measurements. B, Duplex Doppler ultrasound scan image of graft used for PWV measurement. Journal of Vascular Surgery 2004 39, 547-555DOI: (10.1016/j.jvs.2003.09.045)

Fig 1 A, M-mode ultrasound scan image of graft cross-section used for dimensional measurements. B, Duplex Doppler ultrasound scan image of graft used for PWV measurement. Journal of Vascular Surgery 2004 39, 547-555DOI: (10.1016/j.jvs.2003.09.045)

Fig 2 The overall population showed an increase in both pulse wave velocity (P = .08) and wall stiffness (P = .02) over the first 6 months after bypass graft. Graphed values are presented as the mean ± SEM. Journal of Vascular Surgery 2004 39, 547-555DOI: (10.1016/j.jvs.2003.09.045)

Fig 3 Elastic modulus (E) in the overall cohort of vein grafts. The maximal observed change was between 1 and 3 months after surgery (P = NS). Graphed values are presented as the mean ± SEM. Journal of Vascular Surgery 2004 39, 547-555DOI: (10.1016/j.jvs.2003.09.045)

Fig 4 The percentage of change in lumen diameter in the overall cohort over the first 3 months after implantation shows a negative correlation with the initial lumen diameter (n = 26; R2 = .37; P < .001). Large grafts (diameter > 0.375 cm) increased their diameters by 8% ± 4%, whereas small grafts (diameters < 0.375 cm) increased their diameters by 26% ± 13%. These populations were significantly different (P < .05). Journal of Vascular Surgery 2004 39, 547-555DOI: (10.1016/j.jvs.2003.09.045)