<?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>0121-8123</journal-id>
<journal-title><![CDATA[Revista Colombiana de Reumatología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.Colomb.Reumatol.]]></abbrev-journal-title>
<issn>0121-8123</issn>
<publisher>
<publisher-name><![CDATA[Asociación Colombiana de Reumatología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-81232025000300222</article-id>
<article-id pub-id-type="doi">10.1016/j.rcreu.2024.04.001</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Hallazgos en la videocapilaroscopia de una población colombiana de voluntarios sanos con los criterios de estandarización]]></article-title>
<article-title xml:lang="en"><![CDATA[Videocapillaroscopy findings in a Colombian population of healthy volunteers with standardization criteria]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medina]]></surname>
<given-names><![CDATA[Yimy F]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A3"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cárdenas-Sánchez]]></surname>
<given-names><![CDATA[Henry F]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velásquez-Franco]]></surname>
<given-names><![CDATA[Carlos Jaime]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Colombia Rheumatology Unit, Internal Medicine ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Universitario Nacional de Colombia  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Simón Bolívar  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Pontificia Universidad Bolivariana  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2025</year>
</pub-date>
<volume>32</volume>
<numero>3</numero>
<fpage>222</fpage>
<lpage>230</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-81232025000300222&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-81232025000300222&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-81232025000300222&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  La videocapilaroscopia es un procedimiento diagnóstico que permite evaluar la microcirculación en el pliegue ungular de pacientes con fenómeno de Raynaud. Existen pocos reportes de hallazgos videocapilaroscópicos en sujetos sanos, ninguno en Colombia. Es importante conocer los hallazgos que existen en la población sana colombiana para tener un referente y definir anormalidades en personas con enfermedades  Objetivo:  Nuestro objetivo fue describir los hallazgos estandarizados videocapilaroscópicos cualitativos y cuantitativos, así como las características sociodemográficas en voluntarios sanos de una población colombiana.  Materiales y métodos:  Se realizó un estudio descriptivo transversal en el Hospital Simón Bolívar y el Hospital Universitario Nacional de Colombia en Bogotá, Colombia. En el estudio se incluyeron voluntarios adultos sanos mayores de 18 anos. Se tomaron dos imágenes por dedo, desde el segundo al quinto de cada mano. Se realizó una prueba piloto para afinar el procedimiento y establecer la concordancia entre los evaluadores de la prueba, en la que se estimó un índice de concordancia Kappa para los hallazgos de densidad capilar, presencia de capilares dilatados, megacapilares, morfologías anormales y áreas avasculares. Posteriormente, se hicieron mediciones del asa venosa, asa arterial, porción apical, distancia intercapilar, densidad capilar, presencia de capilares dilatados, megacapilares, zonas avasculares y descripción de la morfología capilar. Finalmente, se emitió un diagnóstico capilaroscópico mediante diagrama de flujo fast-track.  Resultados:  Se llevaron a cabo 101 estudios de videocapilaroscopia. El rango de edad de los participantes fue de 20 a 62 años (promedio 31 años), 59 mujeres y 42 hombres. Se analizaron un total de 1.611 fotografías a 200x. La concordancia entre los dos observadores fue excelente para la densidad capilar, los capilares dilatados, las microhemorragias y las formas anormales. El promedio de cada uno de los hallazgos fue el siguiente: densidad capilar de 8,2 capilares/mm, diámetro apical de 14,1 um, asa arterial de 10,8 um, asa venosa de 13,7 um y distancia intercapilar de 147 um. Se evaluó la morfología en 10.855 capilares. La morfología predominante fue en horquilla con un 58,8%, seguida de cruzada con un 30,2%, tortuosa con un 10,4%, y las formas anormales correspondieron al 0,48% de la muestra. No se documentaron zonas avasculares o megacapilares. En 53 individuos hubo algunos capilares dilatados (182), correspondientes al 1,7% de los capilares analizados (mediana del diámetro apical: 23,3 um). Se encontraron microhemorragias en 16 voluntarios, la mayoría con contenido de hemosiderina. El diagnóstico capilaroscópico mediante el algoritmo fast-track y los criterios de estandarización fueron categoría I (patrón no esclerodérmico) en toda la muestra, se observaron hallazgos anormales inespecíficos en 67 (66,3%) de los 101 análisis de videocapilaroscopia.  Conclusiones : En personas sanas de la cohorte, el hallazgo más frecuente fueron las anomalías aisladas no específicas, pero sin conformar un patrón de esclerodermia al aplicar el algoritmo fast-track y los criterios de estandarización. Además, se observaron ectasias de hasta 36 um, microhemorragias con o sin hemosiderina, densidades capilares anormales y formas anormales escasas. Las zonas avasculares o megacapilares fueron poco frecuentes en estos sujetos sanos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Videocapillaroscopy is a diagnostic procedure that allows an assessment of the microcirculation in the nailfold of patients with Raynaud's phenomenon. There are few reports of videocapillaroscopic findings in healthy subjects, none in Colombia. It is important to know the findings that exist in the Colombian healthy population to have a reference and define abnormalities in people with diseases.  Objective:  Our aim was to describe the standardized qualitative, quantitative videocapillaroscopic findings and the sociodemographic characteristics in healthy volunteers from a Colombian population.  Materials and methods:  A cross-sectional descriptive study was conducted at the Simon Bolívar and Hospital Universitario Nacional de Colombia in Bogota, Colombia. Healthy adult volunteers over 18 years of age were included in the study. Two images were taken per finger from the second to fifth of each hand. A pilot test was conducted to refine the procedure and establish the agreement between the evaluators of the test, in which a kappa concordance index was estimated for the findings of capillary density, presence of dilated capillaries, megacapillaries, abnormal morphologies and avascular areas. Subsequently, measurements of the venous loop, arterial loop, apical portion, intercapillary distance, capillary density, presence of dilated capillaries, megacapillaries, avascular zones, and description of capillary morphology were performed. Finally, a capillaroscopic diagnosis was issued by Fast-track flowchart.  Results:  One hundred one videocapillaroscopy studies were performed. The age range of the participants was 20-62 years (average 31 years). 59 women and 42 men. A total of 1611 photographs at 200x were analyzed. Agreement between the two observers was excellent for capillary density, dilated capillaries, microhemorrhages and abnormal shapes. The average of each the findings was as follows: capillary density of 8.2 capillaries/mm, apical diameter 14.1 um, arterial loop 10.8 um, venous loop 13.7 um, and intercapillary distance 147 um. Morphology was evaluated in 10,855 capillaries. The predominant morphology was hairpin with 58.8%, followed by crossed 30.2% tortuous 10.4%, and abnormal forms corresponded to 0.48% of the sample. No avascular or megacapillary zones were documented. In 53 individuals, there were some dilated capillaries (182), corresponding to 1.7% of the capillaries analyzed (median of apical diameter: 23.3 um). Microhemorrhages was found in 16 volunteers, most of them hemosiderin content. The capillaroscopic diagnosis using the Fast-Track algorithm and standardization criteria were category I (a non-scleroderma pattern) in the entire sample, non-specific abnormal findings were observed in 67 (66.3%) of the 101 videocapillaroscopy analyzes.  Conclusions:  In healthy people of our cohort, the most frequent finding was nonspecific isolated abnormalities, but do not conform a scleroderma pattern when Fast-Track algorithm and standardization criteria are applied. In addition to ectasias up to 36 um, microhemorrhages with or without hemosiderin, rare abnormal and decreased capillary densities. Avascular or megacapillary zones were uncommon observed in these healthy subjects.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Diagnostic techniques]]></kwd>
<kwd lng="en"><![CDATA[Videocapillaroscopy]]></kwd>
<kwd lng="en"><![CDATA[Reference standards]]></kwd>
<kwd lng="en"><![CDATA[Healthy volunteers]]></kwd>
<kwd lng="es"><![CDATA[Técnicas de diagnóstico]]></kwd>
<kwd lng="es"><![CDATA[Videocapilaroscopia]]></kwd>
<kwd lng="es"><![CDATA[Estándares de referencia]]></kwd>
<kwd lng="es"><![CDATA[Voluntarios sanos]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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