Immaturity of connective tissue as a cause of damage to the dural mining in newborns with extremely low body weight
- Authors: Gorun E.Y.1, Parilov S.L.1, Maximov A.V.1,2
-
Affiliations:
- Moscow Regional Research and Clinical Institute
- State University of Education
- Issue: Vol 10, No 3 (2024)
- Pages: 363-371
- Section: Original study articles
- URL: https://bakhtiniada.ru/2411-8729/article/view/267495
- DOI: https://doi.org/10.17816/fm16165
- ID: 267495
Cite item
Abstract
BACKGROUND: Рrematurity is the leading factor of nervous system damage during childbirth. This article presents an analysis of cases of birth injuries in newborns with extremely low body weight, with a study of the structural features of the dura mater and comparison of the results with those of full-term newborns.
AIM: To identify the distinctive features of the structure of the dura mater in newborns with extremely low birth weight and full-term newborns and establish the association between the structural features and its damage during childbirth.
MATERIALS AND METHODS: A retrospective sampling study was conducted. The main group included newborns with extremely low body weight, and the comparison group consisted of full-term newborns with an established fact of birth trauma. The dura mater was studied from the region of the tentorium velum, falx, and sinus drainage; they were compared with the counting of type I collagen fibers using light and polarization microscopy and morphometry.
RESULTS: In extremely low birth weight newborns, severe intradural hemorrhages were found in the dura mater, indicating its overextension due to the configuration of the head. The dura mater includes loose connective tissue, consisting of short type III collagen fibers. In the comparison group, the severity of subarachnoid hemorrhages in the projection of the sutures corresponded to the severity of damage to the septal parts of the dura mater. The dura mater consists of dense fibrous connective tissue and predominantly type I collagen. Morphometry revealed anisotropy in polarized light in <2%–5% of fiber collagens in the main group and >30–50% of fiber collagens in the comparison group. Statistically significant indicators were identified (p <0.001).
CONCLUSIONS: The structural features of newborns with extremely low body weight indicate the morphofunctional immaturity of the connective tissue of the dura mater, which affects its strength characteristics and leads to damage during any type of birth. Consequently, this injury is an injury to a painfully altered organ and therefore does not qualify for the severity of harm to health.
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##article.viewOnOriginalSite##About the authors
Ekaterina Y. Gorun
Moscow Regional Research and Clinical Institute
Author for correspondence.
Email: katuhka30@mail.ru
ORCID iD: 0000-0002-7008-2975
SPIN-code: 4298-5402
Russian Federation, Moscow
Sergey L. Parilov
Moscow Regional Research and Clinical Institute
Email: parilov.s@mail.ru
ORCID iD: 0000-0001-9888-4534
SPIN-code: 1764-7532
MD, Dr. Sci. (Medicine), Assistant Professor
Russian Federation, MoscowAlexandr V. Maximov
Moscow Regional Research and Clinical Institute; State University of Education
Email: mcsim2002@mail.ru
ORCID iD: 0000-0003-1936-4448
SPIN-code: 3134-8457
MD, Dr. Sci. (Medicine), Assistant Professor
Russian Federation, Moscow; MoscowReferences
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