Neurovenous superficial inferior epigastric flaps in rats.
Minerva Chir
; 58(3): 361-8, 2003 Jun.
Article
em En
| MEDLINE
| ID: mdl-12955057
ABSTRACT
BACKGROUND:
We performed an experimental study on 46 male rats to evaluate the vitality of superficial inferior epigastric neurovenous flaps performed following different procedures.METHODS:
Rats were divided into 5 groups A (n=6), B (n=10), C (n=10), D (n=10) and E (n=10). On each rat a hemi-abdominal flap based on the superficial inferior epigastric pedicle was raised. In group A the flap was sutured into its original position, isolating it from underlying tissues by a latex glove patch. In group B an arteriectomy of the superficial inferior epigastric artery was performed. In group C the superficial inferior epigastric artery was sectioned at its origin, without dissecting it out of the pedicle. In group D and E the same procedures performed respectively in group B and C were followed, but the epigastric pedicles were immediately explanted for optic microscope observation. Flap vitality in groups A, B and C was checked after 7 days.RESULTS:
Flaps in group A appeared completely vital the glove did not interfere with flap survival. All flaps in group B looked necrotic. In group C, 9 flaps survived completely and 1 flap underwent complete necrosis. Pedicle specimens of the viable flaps (group C) were explanted for observation under the optic microscope. Each specimen from groups C, D, E revealed a rich vascular plexus in the connective tissue around the pedicle. Seven days after surgery, neo-microangiogenesis was evident.CONCLUSIONS:
The results witness the importance of perivenous and perineural arterioles for neurovenous flaps survival, also considering the adaptive increase in capillary development in the days following surgery.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Retalhos Cirúrgicos
Limite:
Animals
Idioma:
En
Revista:
Minerva Chir
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Itália