Abstract
Objective – to improve the treatment results of patients with eventration by determiningthe role of undifferentiated connective tissue dysplasia in the development of thiscomplication.Material and methods. The object of the study comprises 33 patients with eventrationwho were treated in the department of thoracoabdominal surgery of Shalimov NationalInstitute of Surgery and Transplantology during 2017-2020.Results. At complex pathomorphological research of aponeurosis fragments similarmorphological changes have been revealed in groups of patients with phenotypic signsof undifferentiated connective tissue dysplasia and eventration. Immunohistochemicalexamination of tissues with monoclonal antibodies to α-SMA revealed uneven, focalexpression in smooth muscle differentiation cells and fibroblasts in both groups. In thestudies with monoclonal antibodies to Collagen IV, moderate positive expression in thebasement membrane of the blood vessels, in smooth muscle cells of the muscular layerof the vascular wall, in areas of the connective tissue was observed, that is a sign ofpathological remodeling of the connective tissue.Conclusions. Similar pathomorphological changes of the aponeurosis in groups withphenotypic signs of undifferentiated connective tissue dysplasia and post-operativeeventration confirm the role of the connective tissue pathology in the development of thiscomplication.
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