<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0120-2952</journal-id>
<journal-title><![CDATA[Revista de la Facultad de Medicina Veterinaria y de Zootecnia]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Med. Vet. Zoot.]]></abbrev-journal-title>
<issn>0120-2952</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Medicina Veterinaria y de Zootecnia Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-29522019000100011</article-id>
<article-id pub-id-type="doi">10.15446/rfmvz.v66n1.79388</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Standardizing electrocardiographic and arterial pressure parameters in creole horses of the Bogotá Savannah]]></article-title>
<article-title xml:lang="es"><![CDATA[Estandarización de parámetros electrocardiográficos y presión arterial en caballos criollos de la Sabana de Bogotá]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Padua]]></surname>
<given-names><![CDATA[P. P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estrada Guerrero]]></surname>
<given-names><![CDATA[D. M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Padua]]></surname>
<given-names><![CDATA[I. R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Mendez]]></surname>
<given-names><![CDATA[P. P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Fundación Universitaria Agraria de Colombia (Uniagraria)  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Clínica Protectora de Animales  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidade Estadual Paulista  ]]></institution>
<addr-line><![CDATA[Jaboticabal ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2019</year>
</pub-date>
<volume>66</volume>
<numero>1</numero>
<fpage>11</fpage>
<lpage>27</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-29522019000100011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-29522019000100011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-29522019000100011&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Background: Cardiovascular parameters may vary between breeds and physiological stages, hindering the cardiovascular evaluation in horses.  Objective: Standardize electrocardiographic (ECG) and arterial pressure (AP) parameters in creole horses from the Bogota Savannah.  Methods: 100 male and female horses were evaluated, divided into four groups (n=25 each) according to age: group 1 (G1), between 6 months and 1 year old; group 2 (G2), between 1 and 4 years old; group 3 (G3), between 4 and 10 years old; and group 4 (G4), over 10 years old. Bipolar, unipolar and precordial leads in ECG, as well as systolic AP (SAP), mean AP (MAP), and diastolic AP (DAP) were evaluated in all groups.  Results: 99 animals showed sinus rhythm, among which one female from G2 and one from G4 exhibited left fascicles anterior block; a female from G3 had sinus arrhythmia and one female from G2 evidenced 3 premature ventricular complexes. The presence of a unique and positive P wave, a QRS complex of the QR type and a biphasic T wave, were the most common in all groups. A significant decrease in the cardiac axis was observed in G1 when compared to the other groups. The G1 group showed a significant increase in heart rate, SAP, MAP and DAP values.  Conclusions: Taking into account the environmental conditions and how the investigation was developed, it is possible to conclude that creole horses from the Bogotá Savannah differ in their cardiovascular parameters in relation to age.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Antecedentes: Los parámetros cardiovasculares en los caballos pueden variar entre razas y etapas fisiológicas, lo que dificulta la evaluación cardiaca.  Objetivo: Estandarizar parámetros electrocardiográficos (ECG) y de presión arterial (PA) en caballos criollos de la Sabana de Bogotá.  Métodos: Fueron estudiados 100 caballos entre machos y hembras divididos en cuatro grupos de acuerdo con su edad (n=25): grupo 1 (G1), entre 6 meses y 1 año de edad; grupo 2 (G2), entre 1 y 4 años; grupo 3 (G3), entre 4 y 10 años, y grupo 4 (G4), mayores de 10 años. Se evaluaron derivaciones bipolares, unipolares y precordiales en ECG, así como en PA Sistólica (PAS), PA Media (PAM), y PA Diastólica (PAD) en todos los grupos.  Resultados: 99 animales mostraron ritmo sinusal, entre los cuales se observó bloqueo anterior del fascículo izquierdo en una hembra del G2 y en una del G4; a su vez, una hembra del G3 presentó arritmia sinusal y en una del G2 se evidenciaron tres complejos ventriculares prematuros. La presencia de una onda P única y positiva, complejo QRS tipo QR y onda T bifásica fueron los más observados en todos los grupos. Una disminución significativa del eje cardiaco se observó en el G1 cuando se comparó con los demás grupos; además, el G1 presentó aumento significativo en valores de frecuencia cardiaca, PAS, PAM y PAD.  Conclusiones: Teniendo en cuenta las condiciones del medio y la forma en que la investigación se ejecutó, es posible concluir que los parámetros cardiovasculares de caballos criollos de la Sabana de Bogotá difieren con relación a su edad.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[cardiac axis]]></kwd>
<kwd lng="en"><![CDATA[electrocardiogram]]></kwd>
<kwd lng="en"><![CDATA[equine]]></kwd>
<kwd lng="en"><![CDATA[heart rate]]></kwd>
<kwd lng="es"><![CDATA[eje cardiaco]]></kwd>
<kwd lng="es"><![CDATA[electrocardiograma]]></kwd>
<kwd lng="es"><![CDATA[equino]]></kwd>
<kwd lng="es"><![CDATA[frecuencia cardiaca]]></kwd>
</kwd-group>
</article-meta>
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