title: Comparative study between meshes of polyester with collagen and polytetrafluoroethylene in the repair of defects produced in abdominal wall of rats.
abstract: OBJECTIVE
  To study the intraperitoneal use of polyester with collagen and polytetrafluoroethylene meshes in the correction of total ventral wall defects in rats.
  
  
  METHODS
  Thirty two rats were evaluated and divided randomly into four groups and underwent laparotomy and preparation of total defects of the abdominal wall. Next, the correction of the defect with the intraperitoneal placement of the chosen mesh was performed. The rats were submitted to euthanasia at 30 and 90 days after surgery. Were analyzed the macroscopic adhesions and microscopic aspects, and applied stress rupture test
  
  
  RESULTS
  All animals showed intraperitoneal adhesions in varying degrees, with no statistical significance difference. There was no difference also between groups in the evaluation of stress rupture tests. On the microscopic aspect, the A30 group had less inflammatory reaction and less formation of granulomas and foreign body reaction that the B30 group, with significant difference.
  
  
  CONCLUSIONS
  There was no difference in intraperitoneal adhesion and tensile rupture strength among groups. Group B30 presented granulomatous inflammatory reaction at the site of mesh attachment to the wall significantly higher than the A30.
authors: Department of Surgery, Federal University of Parana, Curitiba, PR, Brazil. andrem.oliveira@hotmail.com
authors: Andrea Mendes de Oliveira
authors: AM
authors: Naufel
authors: Nicolau Gregori
authors: NG
authors: Czeczko
authors: Osvaldo
authors: O
authors: Mafafaia
authors: Jurandir Marcondes
authors: JM
authors: Ribas-Filho
authors: Carlos Roberto
authors: CR
authors: Naufel-Junior
authors: Ulrich Andreas
authors: UA
authors: Dietz
authors: Carlos Hespanha
authors: CH
authors: Marinho-Júnior
authors: Enéas Eduardo
authors: EE
authors: Sucharski
mesh_terms: D034861:Abdominal Wall / Q000473:pathology / Q000601:surgery*; D000818:Animals; D003094:Collagen / Q000009:adverse effects*; D006555:Hernia, Ventral / Q000601:surgery; D059685:Herniorrhaphy / Q000379:methods; D008297:Male; D008422:Materials Testing; D011138:Polytetrafluoroethylene / Q000009:adverse effects*; D011897:Random Allocation; D051381:Rats; D017208:Rats, Wistar; D013526:Surgical Mesh / Q000009:adverse effects*; D013718:Tensile Strength; D013997:Time Factors; D000267:Tissue Adhesions / Q000209:etiology / Q000473:pathology; D014945:Wound Healing / Q000502:physiology*
chemical_list: D011138:Polytetrafluoroethylene; D003094:Collagen