Results: 11

Analysis of tissue inflammatory response, fibroplasia, and foreign body reaction between the polyglactin suture of abdominal aponeurosis in rats and the intraperitoneal implant of polypropylene, polypropylene/polyglecaprone and polyester/porcine collagen meshes

Acta cir. bras; 36 (7), 2021
ABSTRACT Purpose To compare tissue inflammatory response, foreign body reaction, fibroplasia, and proportion of type I/III collagen between closure of abdominal wall aponeurosis using polyglactin suture and intraperitoneal implant of polypropylene, polypropylene/polyglecaprone, and polyester/porcine col...

Use of an Expanded Polytetrafluoroethylene (ePTFE) Dura Substitute in Glioma Surgeries: A Technical Note

Arq. bras. neurocir; 38 (3), 2019
Introduction Reoperations are a common scenario among glioma patients. There is crescent evidence of its benefit in low- and high-grade gliomas. Here we discuss our experience with inert expanded polytetrafluoroethylene (ePTFE) dura substitute in glioma surgeries. Technical note We generally put the ePTF...

Comparative study of peritoneal adhesions after intraperitoneal implantation in rats of meshes of polypropylene versus polypropylene/polyglecaprone versus polyester/porcine collagen

Acta cir. bras; 34 (6), 2019
Abstract Purpose To Compare the extent and intensity of adhesions formed between the intra-abdominal organs and the intraperitoneal implants of polypropylene mesh versus polypropylene/polyglecaprone versus polyester/porcine collagen used for correction of abdominal wall defect in rats. Methods After ...

Comparative study of four different types of intraperitoneal mesh prostheses in rats

Acta cir. bras; 34 (7), 2019
Abstract Purpose: To compare four types of mesh regarding visceral adhesions, inflammatory response and incorporation. Methods: Sixty Wistar rats were divided into four groups, with different meshes implanted intraperitoneally: polytetrafluoroethylene (ePTFE group); polypropylene with polydioxanone and...

Comparative study of fibrosis induced by Marlex®, Parietex Composite®, Vicryl® and Ultrapro® meshes1

Acta cir. bras; 33 (9), 2018
Abstract Purpose: To evaluate the fibrosis induced by four different meshes: Marlex®, Parietex Composite®, Vicryl® and Ultrapro®. Methods: Histological cutouts of abdominal wall were analyzed with polarized light 28 days after the meshes implants and colorized by picrosirius to identify the inten...

Pro - inflammatory cytokines and metalloproteinase activation in polypropylene mesh implant in rat subcutaneous tissue

Int. braz. j. urol; 44 (4), 2018
ABSTRACT Aims and Objectives: Polypropylene meshes have been increasingly adopted for correction of pelvic organ prolapse due to its lower recurrence rate when compared to surgeries without meshes. The study of the interaction of these materials with the host tissue may contribute to the development of ...

Host inflammatory response to polypropylene implants: insights from a quantitative immunohistochemical and birefringence analysis in a rat subcutaneous model

Int. braz. j. urol; 42 (3), 2016
ABSTRACT Objectives To describe acute and sub acute aspects of histological and immunohistochemical response to PP implant in a rat subcutaneous model based on objective methods. Materials and Methods Thirty rats had a PP mesh subcutaneously implanted and the same dissection on the other side of abdo...

Treatment of abdominal wall hernia with suture, or polypropylene, or collagen prosthesis

Acta cir. bras; 31 (6), 2016
ABSTRACT PURPOSE: To develop an experimental model for incisional hernias and to compare morphological and functional aspects of hernia repairs by suture, polypropylene mesh and collagen mesh. METHODS: A defect measuring 7cm x 2cm was created in the anterior abdominal of 28 New Zealand male rabbits, di...

Mamoplastia pós-cirurgia bariátrica usando suporte protético complementar de contenção glandular

Rev. bras. cir. plást; 31 (3), 2016
INTRODUÇÃO: A pele de pacientes emagrecidas pós-cirurgia bariátrica apresenta alterações estruturais e proteômicas e não resiste ao peso das mamas, levando-as à flacidez residual precoce, exigindo suporte auxiliar. O objetivo é aplicar suporte auxiliar de lâmina de polipropileno não absorvív...

Comparação entre a tela de submucosa intestinal suína acelular (Surgisis®) e a tela polipropileno (Marlex®) na formação de aderências peritoneais – estudo experimental em ratos

Rev. AMRIGS; 52 (3), 2008
Introdução: Comparar o índice de aderências intraperitoneais entre a tela de submucosa intestinal suína (Surgsis®) e tela polipropileno intraperitoneal (Marlex®) em modelo animal. Metodologia: Foram analisados três grupos de ratas albinas totalizando 40 animais grupo 0 (Sham operation sem tela) =...