[Peritoneostomy with latex coated polypropylene: experimental study in rats].
OBJECTIVE
To evaluate if latex coated polypropylene mesh leads to less adhesions formation.


METHODS
90 rats were distributed in three groups. Group I (control) was submitted to median laparotomy and posterior synthesis; Group II (polypropylene) was submitted to a segment resection of the abdominal wall, and the defect was corrected with a polypropylene mesh; Group III using the new material (latex coated polypropylene). After 45 days the euthanasia procedure was done and the adhesions were evaluated in 2 ways: 1) classification in a grading system; 2) evaluation of the adhesion area, which was calculated by resection of the adhesions after dying with Indian blue ink.


RESULTS
The classification in a grading system showed that Group III animals had less adhesions formation (P<0.05), but the evaluation of the adhesion area did not show any difference (P>0.05). The severe complications (fistula, evisceration and obstruction), which were lethal, were not reduced by the latex coated material.


CONCLUSIONS
Latex coated polypropylene causes fewer adhesion formations than polypropylene alone, although it does not diminish the severe early complications.
Claudio
Renato Hugues Atique
RH
Surgery Department, UFU, Minas Gerais, Brazil. renatoatique@hotmail.com
Diogo Filho
Augusto
A
Mamede Filho
Divino Oliveira
DO
D034861:Abdominal Wall / Q000473:pathology / Q000601:surgery; D000818:Animals; D004195:Disease Models, Animal; D007840:Latex / Q000627:therapeutic use*; D010537:Peritoneum / Q000601:surgery*; D011126:Polypropylenes / Q000627:therapeutic use*; D011183:Postoperative Complications / Q000517:prevention & control; D051381:Rats; D017208:Rats, Wistar; D013526:Surgical Mesh / Q000009:adverse effects*; D000267:Tissue Adhesions / Q000517:prevention & control
D007840:Latex; D011126:Polypropylenes