Development of a “leak-proof,” knitted Dacron vascular prosthesis

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Presentation transcript:

Development of a “leak-proof,” knitted Dacron vascular prosthesis William J. Quiñones-Baldrich, M.D., Wesley S. Moore, M.D., Stanley Ziomek, M.D., Milos Chvapil, M.D., Ph.D. Journal of Vascular Surgery Volume 3, Issue 6, Pages 895-903 (June 1986) DOI: 10.1016/0741-5214(86)90157-6 Copyright © 1986 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 1 Photograph of retroperitoneum 3 months after implantation. Appearance of retroperitoneum in collagen (A) and control prosthesis (B) was considered normal for all implants. No differences were noted. Journal of Vascular Surgery 1986 3, 895-903DOI: (10.1016/0741-5214(86)90157-6) Copyright © 1986 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 2 Photomicrograph of midportion of graft comparing interstitial cellular infiltrate between collagen (A) and control (B) graft at 3 months. Excellent interstitial cellular infiltrate was seen in all collagen-coated and in this one control prosthesis (original magnification, × 40). Journal of Vascular Surgery 1986 3, 895-903DOI: (10.1016/0741-5214(86)90157-6) Copyright © 1986 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 3 Photomicrograph of midportion of graft comparing interstitial cellular infiltrate at 3 months between collagen (A) and control (B) grafts. Excellent interstitial cellular infiltrate is seen in collagen-coated prosthesis vs. moderate cellular infiltrate in control prosthesis (original magnification, × 40). Journal of Vascular Surgery 1986 3, 895-903DOI: (10.1016/0741-5214(86)90157-6) Copyright © 1986 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 4 Photograph of explant opened longitudinally (6 months). Gross appearance of the neointima was similar in both experimental (A) and control (B) groups. Journal of Vascular Surgery 1986 3, 895-903DOI: (10.1016/0741-5214(86)90157-6) Copyright © 1986 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 5 Scanning electron photomicrograph (× 400) of noncoated (A) and collagen-coated (B) prosthesis 3 months after implantation. Note varying degrees of fibrous tissue matrix with no true endothelial cells. Journal of Vascular Surgery 1986 3, 895-903DOI: (10.1016/0741-5214(86)90157-6) Copyright © 1986 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 6 Gross appearance of collagen graft after in vivo testing for 30 minutes of blood flow. Note thin proteinaceous (fibrin) layer without thrombus formation. Journal of Vascular Surgery 1986 3, 895-903DOI: (10.1016/0741-5214(86)90157-6) Copyright © 1986 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 7 Macroscopic appearance of inner surface of standard knitted Dacron graft after 30 minutes of blood flow during in vivo thrombogenicity testing. Note definite thrombus formation on inner surface. Journal of Vascular Surgery 1986 3, 895-903DOI: (10.1016/0741-5214(86)90157-6) Copyright © 1986 Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions