<?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>0121-0793</journal-id>
<journal-title><![CDATA[Iatreia]]></journal-title>
<abbrev-journal-title><![CDATA[Iatreia]]></abbrev-journal-title>
<issn>0121-0793</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Antioquia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-07932016000400415</article-id>
<article-id pub-id-type="doi">10.17533/udea.iatreia.v29n4a03</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Modelado de los barorreceptores de baja presión y su contribución al control de la presión arterial]]></article-title>
<article-title xml:lang="en"><![CDATA[Modeling low pressure baroreceptors and their contribution to blood pressure control]]></article-title>
<article-title xml:lang="pt"><![CDATA[Modelado dos barorreceptores de baixa pressão e sua contribuição ao controle da pressão arterial]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez de Zambrano]]></surname>
<given-names><![CDATA[Betsy Mirley]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas-Sulbarán]]></surname>
<given-names><![CDATA[Rubén Darío]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Experimental del Táchira  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Venezuela</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Cuenca  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2016</year>
</pub-date>
<volume>29</volume>
<numero>4</numero>
<fpage>415</fpage>
<lpage>423</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-07932016000400415&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-07932016000400415&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-07932016000400415&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El principal mecanismo de control de la presión arterial (PA) lo coordina el sistema nervioso central por medio del simpático y el parasimpático. Para simular este mecanismo existen diferentes modelos matemáticos que solo consideran los presorreceptores (barorreceptores) de alta presión, como mecanismo sensor de la PA. Sin embargo, existen otros receptores ubicados en las zonas de baja presión, que, hasta donde sabemos, no han sido considerados en los modelos descritos en la literatura, aunque tienen una participación importante en el control nervioso de la PA. Este artículo presenta un modelo matemático para la representación de los presorreceptores (barorreceptores) de baja presión, mediante la detección de los cambios del volumen sanguíneo en la aurícula, y su aporte al control inmediato de la PA, mediante la estimulación nerviosa de la frecuencia cardíaca. El modelo propuesto se acopló al mecanismo sensor de un modelo mayor. A partir del modelo es posible analizar la contribución y el comportamiento de los receptores de baja presión, lo que permite entender mejor este complejo sistema tanto en condiciones normales como patológicas, al incluir variables importantes en el control inmediato de la PA, que no se han incluido en modelos anteriores.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[SUMMARY The main mechanism for blood pressure (BP) control is coordinated by the central nervous system through the sympathetic and parasympathetic systems. In order to simulate this mechanism, different mathematical models are available, but they take into account only the high pressure receptors as sensing systems for BP. However, other receptors located in low pressure areas have not, as far as we know, been considered in the models described in the literature, despite their important role in the nervous BP control. This paper presents a mathematical model for the representation of low pressure receptors by means of the detection of atrial volume changes, and their contribution to immediate BP control through nervous stimulation of the heart rate. The proposed model was coupled to the sensor mechanism of a larger model. With this model it is possible to analyze the contribution and behavior of low pressure receptors, thus allowing a better understanding of this complex system under normal and pathological conditions, since it includes important variables in the immediate BP control, not included in previous models.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[RESUMO O principal mecanismo de controle da pressão arterial (PA) o coordena o sistema nervoso central por meio do simpático e o parassimpático. Para simular este mecanismo existem diferentes modelos matemáticos que só consideram os pressorreceptores (barorreceptores) de alta pressão, como mecanismo sensor da PA. Mas, existem outros receptores localizados nas zonas de baixa pressão, que, até onde sabemos, não hão sido considerados nos modelos descritos na literatura, porém têm uma participação importante no controle nervoso da PA. Este artigo apresenta um modelo matemático para a reapresentação dos pressorreceptores (barorreceptores) de baixa pressão, mediante a detecção dos câmbios do volume sanguínea na aurícula, e seu aporte ao controle imediato da PA, mediante a estimulação nervosa da frequência cardíaca. O modelo proposto se acoplou ao mecanismo sensor de um modelo maior. A partir do modelo é possível analisar a contribuição e o comportamento dos receptores de baixa pressão, o que permite entender melhor este complexo sistema tanto em condições normais como patológicas, ao incluir variáveis importantes no controle imediato da PA, que não se hão incluído em modelos anteriores.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Presión Arterial]]></kwd>
<kwd lng="es"><![CDATA[Presorreceptores]]></kwd>
<kwd lng="es"><![CDATA[Sistema Nervioso Autónomo]]></kwd>
<kwd lng="es"><![CDATA[Simulación por Computador]]></kwd>
<kwd lng="en"><![CDATA[Autonomic Nervous System]]></kwd>
<kwd lng="en"><![CDATA[Blood Pressure]]></kwd>
<kwd lng="en"><![CDATA[Computer Simulation]]></kwd>
<kwd lng="en"><![CDATA[Presorreceptors]]></kwd>
<kwd lng="pt"><![CDATA[Pressão Arterial]]></kwd>
<kwd lng="pt"><![CDATA[Pressorreceptores]]></kwd>
<kwd lng="pt"><![CDATA[Sistema Nervoso Autónomo]]></kwd>
<kwd lng="pt"><![CDATA[Simulação por Computador]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<article-title xml:lang=""><![CDATA[Flujo Sanguíneo y Control de la Presión Arterial]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Silverthorn]]></surname>
<given-names><![CDATA[DU]]></given-names>
</name>
</person-group>
<source><![CDATA[Fisiología Humana: Un enfoque integrado]]></source>
<year>2008</year>
<edition>4ª</edition>
<page-range>521-4</page-range><publisher-loc><![CDATA[Bogotá ]]></publisher-loc>
<publisher-name><![CDATA[Panamericana]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<article-title xml:lang=""><![CDATA[Nervous Regulation of the Circulation, and Rapid Control of Arterial Pressure]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guyton]]></surname>
<given-names><![CDATA[AC]]></given-names>
</name>
</person-group>
<source><![CDATA[Textbook of Medical Physiology]]></source>
<year>2006</year>
<edition>11ª</edition>
<page-range>210-5</page-range><publisher-loc><![CDATA[United States ]]></publisher-loc>
<publisher-name><![CDATA[Elseviers Saunders]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The autonomic nervous system is not purely efferent system]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Freire]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Azevedo]]></surname>
<given-names><![CDATA[AD]]></given-names>
</name>
</person-group>
<source><![CDATA[Med Hypotheses]]></source>
<year>1990</year>
<volume>32</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>91-9</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Cardiac afferents and neurohormonal activation in congestive heart failure]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Davila]]></surname>
<given-names><![CDATA[DF]]></given-names>
</name>
<name>
<surname><![CDATA[Donis]]></surname>
<given-names><![CDATA[JH]]></given-names>
</name>
<name>
<surname><![CDATA[Bellabarba]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Casado]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Mazzei]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<source><![CDATA[Med Hypotheses]]></source>
<year>2002</year>
<volume>54</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>242-53</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Habituating Control Strategies for Process Control]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Henson]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Ogunnaike]]></surname>
<given-names><![CDATA[BA]]></given-names>
</name>
<name>
<surname><![CDATA[Schwaber]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
</person-group>
<source><![CDATA[AlChE J]]></source>
<year>1995</year>
<volume>41</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>604-18</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ferrer]]></surname>
<given-names><![CDATA[Vallverdú]]></given-names>
</name>
</person-group>
<source><![CDATA[Modelado y simulación del sistema de control cardiovascular en pacientes con lesiones coronarias]]></source>
<year>1993</year>
<publisher-loc><![CDATA[Barcelona ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Politécnica de Cataluña, Instituto de Cibernética]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Interaction between carotid baroregulation and the pulsating heart: a mathematical model]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ursino]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Am J Physiol]]></source>
<year>1998</year>
<volume>275</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>H1733-47</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Djabella]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Medigue]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Sorine]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[A Differential Model of the Baroreflex Control of the cardiovascular System During a Tilt Test]]></source>
<year>2005</year>
<conf-name><![CDATA[ 44IEE Conference on Decision and Control, and the European Control Conference]]></conf-name>
<conf-date>2005 Dec</conf-date>
<conf-loc> </conf-loc>
<page-range>903-8</page-range><publisher-loc><![CDATA[Spain ]]></publisher-loc>
<publisher-name><![CDATA[IEEE]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[de Vet]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<source><![CDATA[People in exercise: A mathematical model of the baroreflex]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Human cardiovascular system with heart failure under baroreflex control (numerical model)]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Svetlana]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Jan]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Frantisek]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Acta Bioeng Biomech]]></source>
<year>2001</year>
<volume>3</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>39-52</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Danielsen]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Modeling of feedback mechanisms which control the heart function in a view to an implementation in cardiovascular models]]></source>
<year>1998</year>
<publisher-loc><![CDATA[Roskilde ]]></publisher-loc>
<publisher-name><![CDATA[Roskilde University, Department of Mathematics and Physics]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Danielsen]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ottesen]]></surname>
<given-names><![CDATA[JT]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A Cardiovascular Model]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Ottesen]]></surname>
<given-names><![CDATA[JT]]></given-names>
</name>
<name>
<surname><![CDATA[Olufsen]]></surname>
<given-names><![CDATA[MS]]></given-names>
</name>
<name>
<surname><![CDATA[Larsen]]></surname>
<given-names><![CDATA[JK]]></given-names>
</name>
</person-group>
<source><![CDATA[Applied Mathematical Models in Human Physiology]]></source>
<year>2004</year>
<page-range>137-200</page-range><publisher-loc><![CDATA[Philadelphia ]]></publisher-loc>
<publisher-name><![CDATA[SIAM]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Doyle]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Henson]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ogunnaike]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Schwaber]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Rybak]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Modeling of the Baroreceptor Reflex with Applications in Process Modeling and Control]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Omidvar]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Elliot]]></surname>
<given-names><![CDATA[DL]]></given-names>
</name>
</person-group>
<source><![CDATA[Neural System for Control]]></source>
<year>1997</year>
<page-range>87-122</page-range><publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Academic Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Rojas]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Modelo de Lazo Cerrado para el Análisis de la Influencia de la Respuesta de los Barorreceptores en la Variabilidad de la Frecuencia Cardiaca]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Martino]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<source><![CDATA[Desarrollo y avances en métodos numéricos para ingeniería y ciencias aplicadas]]></source>
<year>2008</year>
<page-range>B36-8</page-range><publisher-loc><![CDATA[Venezuela ]]></publisher-loc>
<publisher-name><![CDATA[Sociedad Venezolana de Métodos Numéricos en Ingeniería]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Rojas]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<source><![CDATA[Acción nerviosa sobre la resistencia periférica como respuesta al reflejo barorreceptor para el control de la presión arterial]]></source>
<year>2012</year>
<conf-name><![CDATA[ XVCongreso Latinoamericano de Control Automático]]></conf-name>
<conf-loc> </conf-loc>
<page-range>124</page-range><publisher-loc><![CDATA[Lima ]]></publisher-loc>
<publisher-name><![CDATA[Pontificia Universidad Católica del Perú]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Rheology of Blood]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chandran]]></surname>
<given-names><![CDATA[KB]]></given-names>
</name>
</person-group>
<source><![CDATA[Cardiovascular Biomechanics]]></source>
<year>1992</year>
<page-range>35-93</page-range><publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[New York University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Meste]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Blain]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Bermon]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<source><![CDATA[Some Consideration on the IPFM for the Heart Rate Variability Analysis]]></source>
<year></year>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
