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Effects of venous supercharging in deep inferior epigastric artery perforator flap
Groth, Anne Karoline; Campos, Antônio Carlos Ligocki; Gonçalves, Carolina Gomes; Silva, Ruy Fernando Caetano da; Silva, Alfredo Benjamim Duarte da; Greca, Fernando Hintz; Graf, Ruth.
Affiliation
  • Groth, Anne Karoline; Federal University of Parana. Plastic Surgery Department. Curitiba. BR
  • Campos, Antônio Carlos Ligocki; UFPR. Post-Graduate Program in Clinical Surgery. Curitiba. BR
  • Gonçalves, Carolina Gomes; Federal University of Parana. Plastic Surgery Department. Curitiba. BR
  • Silva, Ruy Fernando Caetano da; UFPR. Department of Surgery. Curitiba. BR
  • Silva, Alfredo Benjamim Duarte da; PUCPR. Curitiba. BR
  • Greca, Fernando Hintz; PUCPR. Curitiba. BR
  • Graf, Ruth; UFPR. Department of Plastic Surgery. Curitiba. BR
Acta cir. bras ; Acta cir. bras;22(6): 474-478, Nov.-Dec. 2007. ilus, tab
Article in En | LILACS | ID: lil-472579
Responsible library: BR1.1
ABSTRACT

PURPOSE:

To evaluate the effects of venous supercharging in deep inferior epigastric artery perforator flap in rats.

METHODS:

20 Wistar rats were randomized in 2 groups control group (C), all had flaps raised based on the deep inferior epigastric perforator vessels (DIEP), and experimental group (E), which was identical to group C, except that the contralateral superficial inferior epigastric vein was also kept with the flap. Flow studies using laser Doppler flowmetry where performed daily in the four zones of the flap. On the 7th postoperative day rats were killed and flap survival was determined using digital planimetry.

RESULTS:

Flow values were presented as a percentage of the baseline flow after incision of the flap edges. The surviving flap area was demonstrated as a percentage of the total flap area. Evaluation by digital planimetry showed that flap survival in group E was higher than in group C (97,38 percent±1,32 percentvs.44,13 percent±4,83 percent, p=0,0006).

CONCLUSION:

This study shows that venous supercharging of the rat DIEP flap results in greater flap survival.
RESUMO

OBJETIVO:

Avaliar o efeito da vascularização venosa ampliada na viabilidade do retalho perfurante da artéria epigástrica profunda em ratos.

MÉTODOS:

Vinte ratos foram divididos em 2 grupos controle(C), no qual se realizou o retalho perfurante da artéria epigástrica profunda e experimento(E), no qual se realizou o mesmo retalho e se manteve a veia epigástrica superficial inferior contralateral ao pedículo. Foi realizada determinação diária do fluxo sanguíneo por fluxometria por laser-doppler em quatro quadrantes do retalho previamente estabelecidos e a viabilidade foi determinada, no 7º pós-operatório, através de planimetria.

RESULTADOS:

A análise do fluxo sangüíneo demonstrou não haver diferença entre o grupo C e E nas médias de fluxo entre as zonas do retalho (Zona I103,44±8,09vs.84,70±7,98, p=0,114)(Zona II 109,18±6,99 vs. 113,67±26,89, p=0,401)(Zona III 89,15±11,11 vs. 106,79±15,93, p=0,599)(Zona IV 104,43±11,50 vs. 124,90±23,17, p=1,00). A viabilidade do grupo E foi superior do que no grupo C quando determinada por planimetria digital (97,38 por cento±1,32 por cento vs. 44,13 por cento±4,83 por cento, p=0,0006).

CONCLUSÃO:

Há aumento da viabilidade do retalho DIEP submetidos à supercharging.
Subject(s)
Key words
Full text: 1 Collection: 01-internacional Database: LILACS Main subject: Surgical Flaps / Epigastric Arteries Type of study: Evaluation_studies Limits: Animals Language: En Journal: Acta cir. bras Journal subject: Cirurgia Geral / Procedimentos Cir£rgicos Operat¢rios Year: 2007 Document type: Article Affiliation country: Country of publication:
Full text: 1 Collection: 01-internacional Database: LILACS Main subject: Surgical Flaps / Epigastric Arteries Type of study: Evaluation_studies Limits: Animals Language: En Journal: Acta cir. bras Journal subject: Cirurgia Geral / Procedimentos Cir£rgicos Operat¢rios Year: 2007 Document type: Article Affiliation country: Country of publication: