Revue vétérinaire clinique (2020) 55, 147—150 Disponible en ligne sur ScienceDirect www.sciencedirect.com ORIGINAL ARTICLE Platelet indices in dogs and cats with pyometra  Indices plaquettaires chez les chiens et les chats atteints de pyométrie L. Koenhemsi a,* , Z. Günay Uc ¸mak b , M. Uc ¸mak b , M. Erman Or a a Istanbul University-Cerrahpas ¸a, Faculty of Veterinary Medicine, Department of Internal Medicine, Avcılar, Turkey b Istanbul University-Cerrahpas ¸a, Faculty of Veterinary Medicine, Department of Obstrectics and Gynecology, Avcılar, Turkey Received 4 February 2020; accepted 22 July 2020 Available online 16 August 2020 KEYWORDS Mean platelet volume; Platelet; Platelet distribution width; Plateletcrit; Pyometra Summary Plateletcrit, mean platelet volume (MPV) and platelet distribution width (PDW) are a group of derived platelet parameters obtained as a part of the automatic complete blood count. It has been shown in research studies that these platelet (PLT) indices may have diag- nostic and prognostic value in certain diseases. This study aimed to understand the potential role of PLT indices as a diagnostic and prognostic marker in dogs and cats with pyometra. Fifty bitches and 34 female cats with pyometra, as well as 12 heathy bitches and 11 healthy female cats of different ages and breeds were included in the study. Although there were individual changes in PLT levels in our study, no statistically significant change was detected neither in cats nor dogs. Since the animals included in this study were brought to our clinics immediately after symptoms were seen, we think that is the reason why there was no change in PLT indices. We believe further research should be conducted for a better understanding on the subject in both humans and in animals. © 2020 AFVAC. Published by Elsevier Masson SAS. All rights reserved.  Crédits de formation continue. - La lecture de cet article ouvre droit à 0,05 CFC. La déclaration de lecture, individuelle et volontaire, est à effectuer auprès du CNVFCC (cf. sommaire). ∗ Corresponding author. E-mail address: lomekoh@istanbul.edu.tr (L. Koenhemsi). https://doi.org/10.1016/j.anicom.2020.07.002 2214-5672/© 2020 AFVAC. Published by Elsevier Masson SAS. All rights reserved.