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Titolo:
Longitudinal ruptures of polyester knitted vascular prostheses
Autore:
Chakfe, N; Riepe, G; Dieval, F; Le Magnen, JF; Wang, L; Urban, E; Beaufigeau, M; Durand, B; Imig, H; Kretz, JG;
Indirizzi:
Hop Univ Strasbourg, Dept Cardiovasc Surg, F-67091 Strasbourg, France Hop Univ Strasbourg Strasbourg France F-67091 F-67091 Strasbourg, France Grp Europeen Rech Protheses Appl Chirurg Vasc, GEPROVAS, Strasbourg, France Grp Europeen Rech Protheses Appl Chirurg Vasc Strasbourg France France Lab Phys & Mecan Text, Hamburg, Germany Lab Phys & Mecan Text Hamburg Germany ys & Mecan Text, Hamburg, Germany GPL, Hamburg, Germany GPL Hamburg GermanyGPL, Hamburg, Germany Dept Gen Thorac & Vasc Surg, Hamburg, Germany Dept Gen Thorac & Vasc SurgHamburg Germany Vasc Surg, Hamburg, Germany French Soc Vasc Surg, Comite Ad Hoc Surveillance Protheses Vasc, Mulhouse,France French Soc Vasc Surg Mulhouse France ce Protheses Vasc, Mulhouse,France
Titolo Testata:
JOURNAL OF VASCULAR SURGERY
fascicolo: 5, volume: 33, anno: 2001,
pagine: 1015 - 1021
SICI:
0741-5214(200105)33:5<1015:LROPKV>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
DACRON AORTIC GRAFTS; ARTERIAL PROSTHESES; FAILURE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Chakfe, N Hop Univ Strasbourg, Dept Cardiovasc Surg, BP 426, F-67091 Strasbourg, France Hop Univ Strasbourg BP 426 Strasbourg France F-67091 rg, France
Citazione:
N. Chakfe et al., "Longitudinal ruptures of polyester knitted vascular prostheses", J VASC SURG, 33(5), 2001, pp. 1015-1021

Abstract

Aim: The purpose of the study was the characterization of a type of rupture occurring on warp-knitted polyester vascular prostheses. Materials and Methods: We studied 20 cases of warp-knitted polyester vascular prostheses that were explanted from humans that showed a longitudinal rupture as a part of a collaborative retrieval program. All the prostheses were immediately fixed in a 10% formaldehyde solution after their explantation in the operating room. The clinical data of these cases were recorded. The explants were photographed, washed to eliminate the surrounding tissues,and photographed again. The ruptures were characterized with macroscopic examination, optical stereomicroscopy, and scanning electron microscopy. Results: The mean duration of implantation of the prostheses was 16.0 +/- 3.3 years (range, 9-20.7 years). The prostheses were Cooley Double Velour (n = 15) and Microvel Double Velour (n = 5). There were 16 aortobifemoral bypass grafts, 1 aorto-biiliac, 1 aorto-aortic, 1 iliofemoral, and 1 axillobifemoral. The longitudinal ruptures occurred on two specific parts of the prostheses: the guide line (6 cases) and the remeshing line(ll cases). In three cases both lines were affected. Scanning electron microscopy showed major degradation of the trilobar filaments of the velour and gradual ruptures of the flat filaments of the remeshing and guide lines. Conclusions: In this study, we have identified a specific mechanism of late (9-20 years) longitudinal rupture of knitted polyester prostheses consisting of degradation of the polyester filaments along the remeshing and guidelines that run the length of the graft.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 15/01/21 alle ore 22:14:57