2004
DOI: 10.1590/s0102-86502004000200008
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Abstract: curto prazo de "stents" não recobertos e recobertos com politetrafluoroetileno em aorta de suínos: um modelo experimental. Acta Cir Bras [serial online] 2004 Mar-Abr;19(2). Disponível em URL: http://www.scielo.br/acb. RESUMO -Objetivo: Descrever um estudo experimental avaliando através da morfometria digital o espessamento intimal na parede arterial após o implante de "stents" metálicos auto-expansíveis recobertos ou não com politetrafluoroetileno (PTFE) na aorta de suínos. Métodos: Em três grupos de suínos j… Show more

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Cited by 7 publications
(11 citation statements)
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“…Within the groups, differences were found among group 1 (average 3.51 ± 1.57 mm²) and 2 (average 3.70 ± 1.10 mm²) when compared to group 3 (average 5.59 ± 2.03 mm²) (LSD, p<0.05). values (lipids profile) did not show any statistically significant variation, apart from the HDL and it was inferred that these factors probably do not influence the development of the arterial lesion, These findings corroborates previous works in pigs 7 . It is well established in humans that the degree of wall lesion caused by the stent or angioplasty is related to a variable degree of intimal tickening.…”
Section: Discussionsupporting
confidence: 90%
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“…Within the groups, differences were found among group 1 (average 3.51 ± 1.57 mm²) and 2 (average 3.70 ± 1.10 mm²) when compared to group 3 (average 5.59 ± 2.03 mm²) (LSD, p<0.05). values (lipids profile) did not show any statistically significant variation, apart from the HDL and it was inferred that these factors probably do not influence the development of the arterial lesion, These findings corroborates previous works in pigs 7 . It is well established in humans that the degree of wall lesion caused by the stent or angioplasty is related to a variable degree of intimal tickening.…”
Section: Discussionsupporting
confidence: 90%
“…Verheye et al 20 , after implanting stents in the iliac and carotid arteries of pigs, conducted histological studies of one to six months, stating that within one month the vascular wall was completely covered by endothelial-type cells. In our laboratory, we have studied the intimal tickening in a series of conditions and the time interval of four weeks was used to study the arterial wall alterations 7 . Post et al 21 performed PTA or stent implants in atherosclerotic iliac arteries in micropigs, concluding that the luminal loss after PTA, when compared to the stent implant, was due principally to geometric remodelling in the first group and to intimal hyperplasia in the second.…”
Section: Discussionmentioning
confidence: 99%
“…In the transitional area between the metallic struts of the stents, the translucent lining was apparently not continuous. These findings are similar to those reported by Grüdtner et al [20]. We also clearly saw that the structural changes in the aortic wall were restricted to the region in which the stent was anchored (Figures 4 and 6).…”
Section: Fig 5 -External View Of the Abdominal Aorta With One Metallsupporting
confidence: 92%
“…Grüdtner et al [20] evaluated morphological changes in the aortas of pigs submitted to the implantation of covered and non-covered stents compared to a Control Group. The authors did not find statistically significant differences among the groups in respect to the intimal thickness of the arteries between the proximal and distal segments of the stent.…”
Section: Fig 5 -External View Of the Abdominal Aorta With One Metallmentioning
confidence: 99%
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