Influencia da omentoplastia na anastomose colica de animais submetidos a choque hemorragico : estudo experimental em ratos

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

Intestinal anastomoses cicatrisation is a major motive for worries in Medicine due to serious consequences stemmed from suture dehiscence. Added risks happen when anastomoses are done in adverse conditions, such as immunosuppression, ischemia, infection, use of anti-inflammatory and chemotherapy drugs, diabetes, trauma, malnutrition, old age, and so on. Hemorrhagic shock is also quoted among those harmful situations, causing biochemical and histological damage to anastomoses, being the effects to mechanical resistance not clarified yet. The employment of omentum as a protection to suture line is not a concluded issue as well. This research aimed to assess via the Biomechanical Test of Pressure of Rupture by Liquid Distension (BTPRLD) the influence of a large omentum on the anastomotic line in animals submitted to hemorrhagic shock. Animals chosen as possible to be tested were those alive and presenting undamaged anastomoses at euthanasia day. In order to obtain 20 animals viable for biomechanical test analysis, 63 animals were operated on. Animals were submitted to controlled shock via catheter inserted in the right carotid. Intergroup mortality was similar, 41,3% and 41,1% respectively to group 1 and 2. Group 1, which received no omentumplasty on anastomosis, presented 19 cases of dehiscence, which were discarded. No cases were observed in group 2. There was no statistically difference between groups in parameters such as voluming, voluming suppression, ponderal loss, lactate dosage and MAP during experiment. Concerning Biomechanical Test of Pressure of Rupture by Liquid Distension (BTPRLD), group 2 presented more resistant anastomoses, with higher rupture values (p=0,0539) showing significance when compared to control group (G1). It can be concluded that omental protection increased anastomoses resistance and that the hemorrhage shock model employed was useful to the study of cicatrisation of anastomoses submitted to that adverse condition

ASSUNTO(S)

colon anastomosis omentum colon surgical omento anastomose cirurgica

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