Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

New Findings in the Study of the Pathogenesis of Urethral Pain Syndrome

Version 1 : Received: 25 September 2020 / Approved: 26 September 2020 / Online: 26 September 2020 (11:23:45 CEST)

A peer-reviewed article of this Preprint also exists.

Streltsova, O.; Kuyarov, A.; Molvi, M.S.A.M.; Zubova, S.; Lazukin, V.; Tararova, E.; Kiseleva, E. New Approaches in the Study of the Pathogenesis of Urethral Pain Syndrome. Diagnostics 2020, 10, 860. Streltsova, O.; Kuyarov, A.; Molvi, M.S.A.M.; Zubova, S.; Lazukin, V.; Tararova, E.; Kiseleva, E. New Approaches in the Study of the Pathogenesis of Urethral Pain Syndrome. Diagnostics 2020, 10, 860.

Journal reference: Diagnostics 2020, 10, 860
DOI: 10.3390/diagnostics10110860

Abstract

Urethral pain syndrome (UPS) is still a pathology in which the diagnosis is formulated as a "diagnosis of exclusion". The exact pathogenetic mechanisms are not yet fully understood and clear recommendations for the prevention and treatment of UPS are absent. The goal of the study was to assess the condition of the tissues in the female urethra in UPS, by using transvaginal ultrasound (TVUS) and cross-polarization optical tomography (CP OCT). TVUS showed an expansion in the diameter of the internal lumen of the urethra, especially in the proximal region compared with the norm. Compression elastography revealed areas with increased stiffness (presence of fibrosis) in urethral and surrounding tissues. When studied with CP OCT it was shown that with UPS, the structure of the tissues in most cases was changed: trophic alterations in the epithelium (hypertrophy or atrophy) and fibrosis of underlying connective tissue were observed. The proximal fragment of the urethra with UPS underwent changes identical to those of the bladder neck. This paper showed that the introduction of new technology — CP OCT — in conjunction with TVUS will allow verification of structural changes in tissues of the lower urinary tract at the level of their architectonics and will help doctors understand better the basics of the UPS pathogenesis.

Subject Areas

cross-polarization optical coherence tomography (CP OCT); ultrasound; urethral pain syndrome; epithelial atrophy; epithelial hyperplasia; inflammation; fibrosis; image evaluation

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