Abstract
Aim: The most important complication of colorectal surgery is the separation of anastomosis or leakage. It is known that many local and systemic factors are effective in the healing process of colon anastomoses and in the formation of anastomotic leaks. One of these factors is chemotherapy. In order to achieve successful results in gastrointestinal system cancers, it is necessary to find the sensitive balance between the surgical method and chemotherapy and radiotherapy.
Method: In our study, intraperitoneal administration of the most commonly used cytostatic 5-Fluorouracil (5-FU) in gastrointestinal tract cancers was investigated. For this purpose, 42 female Wistar Albino rats were divided into three main groups, each containing an equal number of subjects. Groups are Control group (Intraperitoneal NaCl), single dose 5-Fluorouracil group (Intraperitoneal 20 mg/kg/day 5-FU) and multiple dose 5-Fluorouracil group (Intraperitoneal 20 mg/kg/day 5-FU 3 days consecutively). Half of the 14 subjects in each main group were sacrificed on the 3rd day and the other half on the 7th day. Leukocyte and Albümin values were investigated for the purpose of examining the side effects of 5-FU. Bursting pressure, hydroxyproline level and histopathologic parameters were used to assess the differences in anastomotic healing between groups.
Results: There was no statistically significant difference in comparison with the control group of the chemotherapeutic 5-FU application in terms of intra-abdominal adhesions after surgical intervention (p>0,05). Albümin and leukocyte values; According to the control groups, statistically significant low results were obtained in groups used in 5-FU (p<0,05). Bursting pressure, histopathologic examination results in the evaluation of anastomotic healing; Multiple doses of 5-FU showed statistically significant low scores in groups with a single dose of 5-FU and control groups (p<0,05).
Conclusion: The impression obtained from the study showed that the high dose intraperitoneal 5-FU treatment, which was started in the early postoperative period, had a negative effect by delaying the anastomotic healing, but in limited doses Intraperitoneal 5-FU does not show any negative effects on anastomotic healing and is in parallel with control groups. In the light of this data from our experimental work; In clinical practice, it can be said that the chemotherapy, which has been feared and started late, may also find the usage area in the early postoperative period in limited doses.