Tricograma como método de diagnóstico dermatológico para avaliar a presença de prurido em gatos
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2013
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O prurido é o sinal mais comum para uma diversidade de doenças dermatológicas felinas e um dos principais motivos de apresentação à consulta dermatológica, seguido da alopecia, sendo a perda de pelo autoinduzida a etiologia mais comum em gatos.
O objetivo deste estudo consistiu em avaliar o tricograma como meio de diagnóstico na avaliação indireta de prurido felino com lesões alopécicas em zonas acessíveis à lambedura.
O estudo incluiu 22 gatos do grupo com alopecia e 22 do grupo de controlo. Através de um questionário realizado aos proprietários de gatos do grupo com alopecia foi possível avaliar a perceção do prurido e classificar a intensidade numa escala de 0 a 10. Foram realizados tricogramas aos dois grupos, avaliando as extremidades distais e fase folicular.
De acordo com os resultados obtidos, 68% dos gatos revelou a presença de prurido, com intensidade média de 3,91, sendo o abdómen a área afetada em 45% dos casos. Comparativamente às áreas de controlo, as de alopecia apresentaram um maior número de hastes pilosas quebradas e raízes em anagénese, o que pode indicar um aumento do recrescimento piloso nestas áreas.
Este estudo revela que o tricograma constitui um teste diagnóstico essencial na avaliação do prurido felino.
Pruritus is the most common clinical sign for a variety of feline skin diseases and one of the most frequent presentations to dermatologic consultation, followed by alopecia, being the auto-induced loss of hair the most common cause of feline alopecia. The purpose of this study consisted in evaluating the tricogram as a diagnostic tool for the indirect determination of pruritus in cats with alopecic lesions in areas accessible to licking. The study included a group of 22 cats with alopecia and another one of 22 cats in the control group. An owner questionnaire was performed to the first group, that made possible to access the perception of pruritus, and classify it’s intensity in a scale of 0 to 10. Tricograms were performed to both groups, accessing the distal ends and follicular phase. According to the results, the presence of pruritus was noticed in 68% of the cats, with an average intensity of 3,91, being the abdomen the affected area in 45% of the cases. In contrast to the control areas, the alopecic areas presented a larger number of broken hair shafts and anagen phase roots, which may indicate an increase in hair regrowth in these areas. This study reveals that the tricogram is an essential diagnostic test in assessing feline pruritus.
Pruritus is the most common clinical sign for a variety of feline skin diseases and one of the most frequent presentations to dermatologic consultation, followed by alopecia, being the auto-induced loss of hair the most common cause of feline alopecia. The purpose of this study consisted in evaluating the tricogram as a diagnostic tool for the indirect determination of pruritus in cats with alopecic lesions in areas accessible to licking. The study included a group of 22 cats with alopecia and another one of 22 cats in the control group. An owner questionnaire was performed to the first group, that made possible to access the perception of pruritus, and classify it’s intensity in a scale of 0 to 10. Tricograms were performed to both groups, accessing the distal ends and follicular phase. According to the results, the presence of pruritus was noticed in 68% of the cats, with an average intensity of 3,91, being the abdomen the affected area in 45% of the cases. In contrast to the control areas, the alopecic areas presented a larger number of broken hair shafts and anagen phase roots, which may indicate an increase in hair regrowth in these areas. This study reveals that the tricogram is an essential diagnostic test in assessing feline pruritus.
Descrição
Orientação : Ana Godinho ; co-orientação : Ana Oliveira ; responsável externo : Cláudio Fernandes
Palavras-chave
VETERINÁRIA, FELÍDEOS, FELIDS, MESTRADO INTEGRADO EM MEDICINA VETERINÁRIA, GATOS, CATS, ALOPÉCIA, ALOPECIA, TRICOGRAMA, TRICHOGRAM, MEDICINA VETERINÁRIA, VETERINARY MEDICINE