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  • Title: Histopathological changes associated to an absorbable fibrin patch (Tachosil®) covering in an experimental model of high-risk colonic anastomoses.
    Author: García-Vásquez C, Gómez García de Las Heras S, Pastor Idoate C, De Pablo D, Fernández-Aceñero MJ.
    Journal: Histol Histopathol; 2018 Mar; 33(3):299-306. PubMed ID: 28880048.
    Abstract:
    BACKGROUND: TachoSil® is a fibrin sponge that contains fibrinogen and thrombin and is a useful adjuvant to enhance control of air leaks in thoracic surgery and to control bleeding in vascular and general surgery. Its use in intestinal surgery to prevent suture dehiscence is currently under investigation. MATERIAL AND METHODS: We report the results of a prospective randomized experimental study on 33 large white pigs in which a high-risk suture was created by induction of ischemia. We randomly employed TachoSil® to cover the anastomosis in half of the animals compared to a control group of uncovered anastomosis. After euthanasia, postmortem analysis was performed describing the findings related to anastomotic leakage, peritonitis and grade of adhesions. The entire anastomosis was resected in bloc and sent for histopathological analysis. A single blinded-pathologist evaluated the histopathological features of the specimens. RESULTS: We found statistically significant differences favouring the patch in decreasing leakage in the covered group. The healing process did not show significant differences between groups, although a higher rate of microscopic abscess was observed in the covered group. CONCLUSION: The use of fibrin sealants covering high-risk intestinal sutures has a positive effect in avoiding macroscopic anastomotic leakage. The patch did not have any influence in the anastomotic healing process, however, as a result of the effect in containing the inflammatory response, it may increase the rate of abscess.
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