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BMC Vet Res ; 12(1): 148, 2016 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-27449509

RESUMO

BACKGROUND: Canine reticulated platelets (r-PLTs) i.e., juvenile PLTs reflecting thrombopoiesis can be measured automatically with the hematology analyzer Sysmex XT-2000iV using manual gating options. However, the impact of interferences on r-PLT measurements performed with the gates published previously (Pankraz et al., Vet Clin Path 38:30-38, 2009; Gelain et al., High fluorescent platelets fraction in macrothrombocytopenic Norfolk terrier, 2010) is largely unknown. The aim was to compare different published gates for measurement of r-PLTs with the Sysmex XT-2000iV with an own, optimized gate ("Oellers-gate") and to establish reference intervals (RIs) in > 120 dogs. Data of 362 measurements of diseased and healthy dogs were analyzed retrospectively. Several gates were applied and RIs for r-PLTs and platelet indices were established for pet dogs and a group of 153 healthy Beagles kept under defined housing conditions. Intra-assay precision (CV) was also assessed. RESULTS: In 30/362 samples, interferences consistent with small erythrocytes/reticulocytes were seen in the previously published gates but not in the "Oellers-gate". Good correlation was found between the different gates (rs: 0.88-1.00). RIs for the "Pankraz-gate", the "Gelain-gate", and the "Oellers-gate" were 0.0-1.2, 0.2-3.7 and 0.2-3.9 % respectively. CVs were ranging between 22 and 41 %. CONCLUSIONS: Optimization of previously published gates minimized interferences of small erythrocytes with r-PLT measurements.


Assuntos
Contagem de Células Sanguíneas/veterinária , Plaquetas/classificação , Plaquetas/citologia , Cães/sangue , Animais , Contagem de Células Sanguíneas/instrumentação , Feminino , Masculino , Valores de Referência , Sensibilidade e Especificidade , Especificidade da Espécie
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