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ISSN (Print): 1574-8871
ISSN (Online): 1876-1038

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Research Article

Gender Differences in Patients with Prolactinoma: Single-center Ukrainian Experience

Author(s): Oleksandr Voznyak*, Iaroslav Zinkevych, Andrii Lytvynenko, Nazarii Hryniv, Roman Ilyuk and Nazarii Kobyliak*

Volume 19, Issue 3, 2024

Published on: 29 March, 2024

Page: [204 - 214] Pages: 11

DOI: 10.2174/0115748871288948240325080936

Price: $65

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Abstract

Introduction: Prolactinomas are the most common type of pituitary gland tumors that secrete overly prolactin. They account for approximately 60% of all hormone-secreting hypophysis tumors.

Aim: This study aims to analyze gender differences in patients with prolactinomas who were operated on transsphenoidal surgery and conduct a single-center retrospective analysis of patient data.

Material and Methods: This study evaluated the medical records of 109 patients (61 females and 48 males) from 2009 to 2019 at Feofaniya Clinical Hospital of the State Administration of Affairs in Kyiv, Ukraine. The primary criterion for including patients was a Serum Prolactin (PRL) level of over 100 ng/ml and the presence of a pituitary adenoma (PA) as observed on MRI. Additionally, the histological examination needed to confirm the presence of Prolactin-Secreting Pituitary Adenomas (PSPAs) without plurihormonal activity through both microscopy and immunohistochemical (IHC) staining.

Results: Significant differences in preoperative PRL levels were not observed. However, males had significantly larger tumor sizes and prevalence of macroadenomas. In male patients, the preoperative PLR levels showed a weak negative correlation with age (r=-0.304, p < 0.036) and a positive correlation with tumor size (r=0.555, p < 0.001) and cavernous sinus invasion (r=0.339, p < 0.018). In females, preoperative PRL was significantly associated only with tumor size and Knosp grade.

Conclusion : Prolactin-Secreting Pituitary Adenomas (PSPAs) are more common in women than men and are characterized by larger and more invasive tumors with high PRL levels at diagnosis. The PRL level and tumor size before surgery can predict early biochemical remission in both males and females with an accuracy of 58.3% and 68.8%, respectively.

Keywords: Prolactinomas, dopamine agonists, prolactin, pituitary adenomas, trans-sphenoidal surgery, tumor.

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