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Hemograma e hemogasometria de eqüinos submetidos à obstrução experimental de jejuno Hemogram and blood gas analysis of equines submitted to jejuni experimental obstruction

Authors: N.S. Costa; G. Ribeiro; R.G.S. Dória; P.A. Canola; P.C. Silva; R.L.N. Jorge; J.J. Fagliari;

Hemograma e hemogasometria de eqüinos submetidos à obstrução experimental de jejuno Hemogram and blood gas analysis of equines submitted to jejuni experimental obstruction

Abstract

Foram utilizados oito eqüinos distribuídos em dois grupos, submetidos ou não à obstrução experimental do jejuno mediante a colocação de um balão intraluminal. Os animais do grupo 1 foram submetidos à enterotomia com colocação do balão sem distensão suficiente para provocar isquemia e os do grupo 2 à isquemia por obstrução do jejuno durante quatro horas. Para determinação do hemograma e da hemogasometria foram obtidas amostras de sangue venoso em quatro momentos: uma hora antes do procedimento cirúrgico (M1), ao final da obstrução/isquemia (M2) e uma hora (M3) e 18 horas (M4) após o início da reperfusão/desobstrução. Não houve diferença entre grupos nas contagens de hemácias, leucócitos totais, neutrófilos bastonetes, neutrófilos segmentados, linfócitos e monócitos, bem como no teor de hemoglobina. Houve diferença no volume globular em M2 e na contagem de eosinófilos em M3. Na hemogasometria, em ambos os grupos, registrou-se diminuição dos teores de sódio, potássio, cálcio ionizado e cloro, da pressão parcial de oxigênio e da saturação de oxiemoglobina. Os resultados indicam que o hemograma, isoladamente, não fornece informações conclusivas, enquanto a hemogasometria possibilita determinar, precocemente, o volume de reposição hidroeletrolítica a ser administrado em eqüino com abdômen agudo decorrente de obstrução de jejuno, auxiliando no tratamento e no melhor prognóstico da afecção intestinal.Eight equines were distributed into two different groups. Those groups were submitted or not to an experimental jejunal obstruction. Animals from group 1 were submitted to an enterotomy with placement of an intraluminal balloon, without enough distention to cause ischemia; animals from group 2 were submitted to ischemia by jejunal obstruction during four hours. In order to determine the hemogram and blood gas analysis, blood samples from peripheral vein were obtained at four moments: one hour before the surgical procedure (M1); at the end of obstruction/ischemia (M2); one hour (M3) and 18 hours (M4) after the beginning of reperfusion/deobstruction. There was no difference among the groups related to the counting of erythrocytes, hemoglobin, total white cells, neutrophils (band), neutrophils (segmented), lymphocytes, and monocytes. There was difference in the globular volume in M2 and in the eosinophils counting in M3. In both groups, the blood gas analysis identified diminished of sodium, potassium, ionized calcium, and chloride amounts, and partial pressure of oxygen and oxihemoglobin saturation. The results indicate that the hemogram alone, do not give conclusive information while the blood gas analysis allows an early determination of the volume of hydroelectrolytic replacement to be given to one equine with acute abdomen due to jejunal obstruction, providing additional support to the treatment and a better prognosis to an intestinal affection.

Keywords

hemogasometria, hemograma, SF1-1100, horse, Animal culture, hemogram, blood, gas, jejuni obstruction, eqüino, obstrução de jejuno

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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