Tissue microarray technology and collagen evaluation to analyze surgical trauma performed with usual blade or ultrasonic harmonic scalpels in rats
Acta cir. bras
; 33(9): 762-774, Sept. 2018. tab, graf
Article
en En
| LILACS
| ID: biblio-973507
Biblioteca responsable:
BR1.1
ABSTRACT
Abstract Purpose:
To compare wound healing performed with cold blade (CSB) and ultrasonic harmonic scalpel (UHS) in the abdominal aponeurosis of rats.Methods:
Eighty Wistar rats divided into two groups and underwent midline incision in the linea alba with cold blade and harmonic ultrasonic scalpel. Analysis were performed in subgroups of 10 animals after 3, 7, 14 and 21 days. Macroscopically was observed the presence of hematoma, infection, wound dehiscence, fistula and adherences. Microscopically were used collagen and immunohistochemical staining methods.Results:
Macroscopic, complications showed no statistical difference. Immunohistochemical analysis for MMP-9 was more intense in UHS group (p<0.05). TGF β presented its lower expression in UHS group at 14 and 21 days, with no statistical difference at 3 and 7 days (p<0.05). α-AML expression appeared higher in UHS group after 14 days and remained similar in others (p<0.05). Collagen deposition had no change in type I, and increased in type III in UHS; at 7th day the deposition was higher in CSB group; at 14th was similar in both groups (p<0.001).Conclusion:
UHS compared to the CSB has higher lesion area at the time of the incision; as well as it led to the delay of regeneration and scar maturation process.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
LILACS
Asunto principal:
Cicatrización de Heridas
/
Colágeno
/
Pared Abdominal
/
Herida Quirúrgica
Límite:
Animals
Idioma:
En
Revista:
Acta cir. bras
Asunto de la revista:
CIRURGIA GERAL
/
Procedimentos Cir£rgicos Operat¢rios
Año:
2018
Tipo del documento:
Article
País de afiliación:
Brasil
/
Alemania
/
Estados Unidos