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Endocrine Abstracts (2015) 37 EP739 | DOI: 10.1530/endoabs.37.EP739

ECE2015 Eposter Presentations Pituitary: clinical (121 abstracts)

Mean platelet volume in patients with prolactinoma

Abbas Ali Tam 1 , Cafer Kaya 1 , Reyhan Ersoy 2 & Bekir Çakır 1


1Department of Endocrinology and Metabolism, Ataturk Training and Research Hospital, Ankara, Turkey; 2Department of Endocrinology and Metabolism, Yıldırım Beyazıt University, Ankara, Turkey.


Introduction: Prolactin is a multifunctional pituitary hormone. The effect of prolactin on platelet activation is not well understood. Prolactinomas are the most common type of pituitary adenomas, and they are medically responsive to dopamine agonists. Mean platelet volume (MPV) is a marker of platelet function and activation. The aim of this study was to evaluate MPV values before and 6 months of cabergoline treatment when normoprolactinemia was achieved.

Methods: A total of 101 newly diagnosed prolactinoma patients and 102 healthy control subjects were included in the study. Patients with haematological disorders that affect MPV and those on medications were excluded. Prolactin, platelet count and MPV levels were recorded before and 6 months after the initiation of cabergoline treatment (0.5–1 mg, two times a week).

Results: There was no significant difference in platelet count and MPV before and after 6 months of treatment with cabergoline in patients with prolactinoma compared with the control group (P>0.05).

Conclusion: Our results showed that MPV, a marker of platelet function, was unchanged in patients with prolactinoma.

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