<?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>0003-3170</journal-id>
<journal-title><![CDATA[Angiología]]></journal-title>
<abbrev-journal-title><![CDATA[Angiología]]></abbrev-journal-title>
<issn>0003-3170</issn>
<publisher>
<publisher-name><![CDATA[Arán Ediciones S.L.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0003-31702024000400008</article-id>
<article-id pub-id-type="doi">10.20960/angiologia.00596</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Atrapamiento poplíteo bilateral en paciente con síndrome de Klinefelter]]></article-title>
<article-title xml:lang="en"><![CDATA[Bilateral popliteal entrapment in a patient with Klinefelter syndrome]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Baena-Garrido]]></surname>
<given-names><![CDATA[María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Arquillo]]></surname>
<given-names><![CDATA[Irene María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vidal-Rey]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernández-Lorenzo]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Encisa-de Sá]]></surname>
<given-names><![CDATA[José Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Complejo Hospitalario Universitario de Vigo  ]]></institution>
<addr-line><![CDATA[Vigo Pontevedra]]></addr-line>
<country>España</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2024</year>
</pub-date>
<volume>76</volume>
<numero>4</numero>
<fpage>250</fpage>
<lpage>253</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S0003-31702024000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S0003-31702024000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S0003-31702024000400008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: el síndrome de Klinefelter (SK) es el trastorno cromosómico sexual más común en hombres, asociado a hipogonadismo, infertilidad y riesgo cardiovascular aumentado. La asociación con la enfermedad arterial periférica (EAP) es rara, y es excepcional la presencia del síndrome de atrapamiento poplíteo (SAP).  Caso clínico: presentamos el caso de un varón de 15 años con SK, en tratamiento con testosterona, con isquemia subaguda en la pierna izquierda y claudicación crónica en la derecha. Las pruebas de imagen revelaron atrapamiento poplíteo bilateral. Se realizaron intervenciones quirúrgicas secuenciales en ambas extremidades para abordar las lesiones arteriales y el atrapamiento, mediante desinserción del fascículo anómalo del músculo gastrocnemio medial asociado a bypass poplíteo-poplíteo o plastia con parche, en ambos usando la vena safena externa.  Discusión: el SK se asocia con mayor riesgo tromboembólico, atribuido al hipogonadismo y a factores trombofílicos. Aunque el desarrollo de SAP es excepcional, es importante su sospecha en estos pacientes, por ser una causa importante de claudicación e isquemia de las extremidades inferiores, cuyo pronóstico mejora con diagnóstico y tratamiento tempranos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Klinefelter syndrome (KS) is the most common chromosomal sex disorder in males, associated with hypogonadism, infertility, and an increased risk of cardiovascular complications. The association with peripheral arterial disease (PAD) is rare, with the presence of popliteal entrapment syndrome (PES) being exceptionally uncommon.  Case report: we present the case of a 15-year-old male with KS undergoing testosterone therapy, exhibiting subacute ischemia in the left leg and chronic claudication in the right. Imaging revealed bilateral popliteal entrapment. Sequential surgical interventions were conducted on both limbs to address arterial lesions and entrapment. This involved releasing the anomalous fascicle of the medial gastrocnemius muscle, coupled with either popliteal-popliteal bypass or patch plasty, utilizing the external saphenous vein in both procedures.  Discussion: KS is associated with an increased thromboembolic risk, attributed to hypogonadism and thrombophilic factors. While the development of PES is exceptional, its suspicion is crucial in these patients, as it represents a significant cause of claudication and lower limb ischemia. Early diagnosis and treatment improve the prognosis for these individuals.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Klinefelter]]></kwd>
<kwd lng="es"><![CDATA[Atrapamiento poplíteo]]></kwd>
<kwd lng="es"><![CDATA[Hipercoagulabilidad]]></kwd>
<kwd lng="es"><![CDATA[Arteria poplítea]]></kwd>
<kwd lng="en"><![CDATA[Klinefelter]]></kwd>
<kwd lng="en"><![CDATA[Popliteal entrapment]]></kwd>
<kwd lng="en"><![CDATA[Hypercoagulability]]></kwd>
<kwd lng="en"><![CDATA[Popliteal artery]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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