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Utilização de gráficos de pontos na classificação e auxílio diagnóstico da anemia em gatos e cães
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Resumo(s)
A anemia é o achado hematológico mais comum na clínica de pequenos animais, e pode ser definida como uma diminuição da massa eritrocitária, a sua etiologia é por vezes de difícil identificação. Os gráficos de pontos obtidos através do analisador hematológico ProCyte One* estão validados e comprovados e são uma ferramenta de potencial de auxílio de diagnóstico, mas que continua a ser subvalorizada, muitas vezes dando-se apenas preferência aos hemogramas tradicionais. As informações fornecidas nestes gráficos têm o potencial de facilitar o diagnóstico, tornando-o mais rápido e económico para os tutores, agilizando assim a chegada a um diagnóstico adequado e a seleção de um plano terapêutico apropriado e eficaz, melhorando o prognóstico dos animais. O presente trabalho consiste num estudo retrospetivo realizado numa clínica da ilha de São Miguel, nos Açores, com uma amostragem de 32 animais, 19 gatos e 13 cães, que visa demonstrar a utilidade da utilização de gráficos de pontos na classificação da anemia e no seu consequente diagnóstico, utilizando o analisador hematológico ProCyte One*, da IDEXX, quando comparada com a utilização do cálculo da percentagem corrigida de reticulócitos e com a contagem absoluta de reticulócitos, na classificação da anemia em regenerativa e não regenerativa. A classificação da anemia como regenerativa e não regenerativa através dos gráficos de pontos mostrou-se concordante com a classificação obtida tanto através do cálculo da percentagem corrigida de reticulócitos, como com a contagem absoluta de reticulócitos em todas as 32 amostras. Deste modo, a análise dos dados deste trabalho permitiu averiguar a fácil classificação da anemia como regenerativa e não regenerativa através da utilização dos gráficos de pontos, quando comparada com outros métodos mais utilizados. E explora ainda 3 casos clínicos de forma a melhor ilustrar as vantagens da análise dos gráficos de pontos obtidos com um analisador hematológico de citometria de fluxo
Anemia is the most common hematological find in the everyday practice of small animal medicine and can be defined as a decrease in red blood cell mass, its etiology is oftentimes difficult to identify. The dot plots obtained through the ProCyte One* hematology analyzer are validated and proven and are a tool with potential to aid in diagnosis, but which continues to be underrated, oftentimes being given preference to only traditional blood counts. The information provided in these graphs has the potential to facilitate diagnosis, making it faster and more economical for owners, thus speeding up the process of arriving at an adequate diagnosis as well as the selection of a suitable and effective therapeutic plan, improving the prognosis of the animals. This present work is based on a retrospective study carried out in a clinic on the island of São Miguel, in the Azores, with a sample of 32 animals, 19 cats and 13 dogs, which aims to demonstrate the usefulness of utilizing dot plots in the classification of anemia and consequentially its diagnosis, using IDEXX’s ProCyte One* hematology analyzer, when compared with the use of the corrected percentage of reticulocytes and the absolute reticulocyte count, in the classification of anemia as regenerative and non-regenerative. The classification of anemia as regenerative and non-regenerative using the dot plots was consistent with the classification obtained both through the calculation of the corrected percentage of reticulocytes and with the absolute reticulocyte count in all 32 samples. Thus, the data analysis in this work permits us to ascertain the facilitated classification of anemia as regenerative and non-regenerative using dot plots, when compared to other more commonly used methods. It also explores 3 clinical cases to better illustrate the advantages of analyzing dot plots obtained with a flow cytometry hematology analyzer
Anemia is the most common hematological find in the everyday practice of small animal medicine and can be defined as a decrease in red blood cell mass, its etiology is oftentimes difficult to identify. The dot plots obtained through the ProCyte One* hematology analyzer are validated and proven and are a tool with potential to aid in diagnosis, but which continues to be underrated, oftentimes being given preference to only traditional blood counts. The information provided in these graphs has the potential to facilitate diagnosis, making it faster and more economical for owners, thus speeding up the process of arriving at an adequate diagnosis as well as the selection of a suitable and effective therapeutic plan, improving the prognosis of the animals. This present work is based on a retrospective study carried out in a clinic on the island of São Miguel, in the Azores, with a sample of 32 animals, 19 cats and 13 dogs, which aims to demonstrate the usefulness of utilizing dot plots in the classification of anemia and consequentially its diagnosis, using IDEXX’s ProCyte One* hematology analyzer, when compared with the use of the corrected percentage of reticulocytes and the absolute reticulocyte count, in the classification of anemia as regenerative and non-regenerative. The classification of anemia as regenerative and non-regenerative using the dot plots was consistent with the classification obtained both through the calculation of the corrected percentage of reticulocytes and with the absolute reticulocyte count in all 32 samples. Thus, the data analysis in this work permits us to ascertain the facilitated classification of anemia as regenerative and non-regenerative using dot plots, when compared to other more commonly used methods. It also explores 3 clinical cases to better illustrate the advantages of analyzing dot plots obtained with a flow cytometry hematology analyzer
Descrição
Dissertação de Mestrado Integrado em Medicina Veterinária, área científica de Clínica
Palavras-chave
Anemia Gráfico de pontos ProCyte One* Citometria de fluxo Anemia Dot plots Procyte One* Flow Cytometry