The effect of pasireotide on intestinal anastomotic healing with and without whole-body irradiation in a rat model

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Abstract

Objective: To examine pasireotide’s effect on intestinal anastomotic healing under physiological conditions and following preoperative whole-body irradiation. Material and methods: Forty-five male Wistar rats received an ileoileal end-to-end anastomosis. Group 1 (Co, n = 9) served as control. Group 2 (SOM, n = 10) received pasireotide (60 mg/kg) 6 days preoperatively. Group 3 (R-Co, n = 13) was subjected to 8 Gy whole-body irradiation 4 days preoperatively. Finally, group 4 (R-SOM, n = 13) received pasireotide 6 days preoperatively and whole-body irradiation 4 days preoperatively. On postoperative day 4, anastomotic bursting pressure, histology, IGF-1 staining, and collagen density were examined. Results: Mortality was higher in irradiated animals (30.8% vs. 5.3%, p = 0.021), and anastomotic bursting pressure was significantly lower (median, R-Co = 83 mmHg; R-SOM = 101 mmHg; Co = 149.5 mmHg; SOM = 169 mmHg). Inflammation measured by leukocyte infiltration following irradiation was reduced (p = 0.023), and less collagen was observed, though this was not statistically significant. Bursting pressure did not significantly differ between Co and SOM and between R-Co and R-SOM animals respectively. Semi-quantitative scoring of IGF-1, fibroblast bridging, or collagen density did not reveal significant differences among the groups. Conclusion: Whole-body irradiation decreases the quality of intestinal anastomotic wound healing and increases mortality. Pasireotide does not significantly lessen this detrimental effect.

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APA

Seifert, G. J., Leithold, G., Kulemann, B., Holzner, P. A., Glatz, T., Hoeppner, J., … Laessle, C. (2019). The effect of pasireotide on intestinal anastomotic healing with and without whole-body irradiation in a rat model. International Journal of Colorectal Disease, 34(2), 337–345. https://doi.org/10.1007/s00384-018-3193-5

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