<?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>1646-706X</journal-id>
<journal-title><![CDATA[Angiologia e Cirurgia Vascular]]></journal-title>
<abbrev-journal-title><![CDATA[Angiol Cir Vasc]]></abbrev-journal-title>
<issn>1646-706X</issn>
<publisher>
<publisher-name><![CDATA[Sociedade Portuguesa de Angiologia e Cirurgia Vascular]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1646-706X2021000300238</article-id>
<article-id pub-id-type="doi">10.48750/acv.389</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Endovascular management of transplant renal artery stenosis: early and mid-term results]]></article-title>
<article-title xml:lang="pt"><![CDATA[Tratamento endovascular de estenose de artéria de transplante renal: resultados a curto e médio prazo]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinto]]></surname>
<given-names><![CDATA[Vanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lopez]]></surname>
<given-names><![CDATA[Noélia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cardoso]]></surname>
<given-names><![CDATA[Ana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Henriques]]></surname>
<given-names><![CDATA[Mickael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[Emanuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silvestre]]></surname>
<given-names><![CDATA[Luís]]></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="A5"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Baptista]]></surname>
<given-names><![CDATA[Lucas]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guerra]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pedro]]></surname>
<given-names><![CDATA[Luís Mendes]]></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="A5"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ministro]]></surname>
<given-names><![CDATA[Augusto]]></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="A5"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Santa Maria Heart and Vessels Division Vascular Surgery Department]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University of Lisbon Faculty of Medicine ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Lisbon Academic Medical Center  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Hospital Santa Maria Department of Nephrology ]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Hospital Santa Maria Department of Internal Medicine ]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Hospital Santa Maria Department of General Surgery ]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>09</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>09</month>
<year>2021</year>
</pub-date>
<volume>17</volume>
<numero>3</numero>
<fpage>238</fpage>
<lpage>244</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S1646-706X2021000300238&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S1646-706X2021000300238&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S1646-706X2021000300238&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective:  Renal graft dysfunction or worsened hypertension in renal transplanted patients may be a manifestation of graft hypoperfusion due to transplant renal artery stenosis (TRAS) or stenosis of iliac arteries proximal to renal transplant (pseudo-TRAS). Endovascular management of TRAS has been increasingly used to preserve renal graft function. With this study, we aim to evaluate the impact of endovascular treatment of TRAS on renal function in the short to medium term.  Material and methods:  This is an observational, retrospective, single-center study that included all adult renal transplant patients who underwent endovascular intervention on TRAS between September 2017 and June 2020. Renal graft function was monitored by serum Creatinine (sCr) levels.  Results:  Thirteen patients were included (53.8% female), with a median age of 57 (21-70) years. Eleven patients (84.6%) presented with graft dysfunction. Ten subjects (76.9%) underwent transluminal angioplasty and stenting of renal artery and three (23,1%) of donor iliac arteries. Most cases (69.2%) were interventioned in the first-year post-transplant. Overall technical success was 100%, with no periprocedural deaths. Overall 30-day morbidity was 15.4%. Median follow-up time was 20.2 (1,3 - 36,3) months. One patient died during follow up and other worsened graft dysfunction, requiring hemodialysis and nephrectomy. Reduction in sCr levels was statistically significant in the first postoperative month, compared to preoperative values, but sCR levels were still increased when compared to baseline levels (pre-TRAS diagnosis).  Conclusions:  The majority (12/13) of patients showed improvement or stabilization of renal graft function compared to the preoperative period, during the follow-up period, supporting the procedure&#8217;s safety. Despite this, most patients did not recover baseline sCr levels, reinforcing the importance of prompt graft revascularization. Delayed diagnosis of TRAS may compromise the benefit of revascularization and prevent full recovery of renal function.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Objetivos:  A disfunção de enxerto renal e agravamento de hipertensão nos pacientes transplantado renais podem ser manifestações de hipoperfusão do enxerto devido a estenose de artéria de transplante renal (EATR) ou estenose da artéria ilíaca proximal à anastomose do enxerto (pseudo-EATR). O tratamento endovascular de EATR é cada vez mais frequente para manter a função do enxerto. Com este estudo, pretendemos avaliar o impacto do tratamento endovascular de EATR na função renal a curto e médio prazo.  Materiais e métodos:  Este é um estudo observacional, retrospetivo, monocêntrico que inclui todos os pacientes transplantados renais adultos submetidos a tratamento endovascular de EATR entre Setembro de 2017 e Junho de 2020. A função renal foi monitorizada através da medição da creatinina sérica (sCr).  Resultados:  Treze pacientes foram incluídos (53.8% do sexo feminino), com idade média de 57 (21-70) anos. Onze pacientes (84.6%) desenvolveram disfunção de enxerto. Dez pacientes (76.9%) foram submetidos a angioplastia transluminal e colocação de stent na artéria renal do enxerto e três (23.1%) da artéria ilíaca dadora. A maior parte dos casos (69.2%) foram tratados durante o primeiro ano pós transplante. A taxa de sucesso técnico foi de 100%, sem mortalidade periprocedimento. A taxa de morbilidade aos 30 dias foi de 15.4%. O tempo médio de seguimento foi de 20.2 (1.3 - 36.3) meses. Um doente morreu durante o seguimento e outro sofreu agravamento de disfunção do enxerto com necessidade de hemodiálise e nefrectomia. A redução na sCr foi estatisticamente significativa no primeiro mês pós-intervenção, comparado aos valores pré-intervenção, mas a sCr continuou aumentada quando comparada aos níveis basais (pré-diagnóstico de EATR).  Conlusão:  A maioria dos pacientes (12/13) melhorou ou estabilizou a função renal após a intervenção em relação ao período pré-intervenção, mostrando a eficácia do procedimento. No entanto, a maior parte dos doentes não retornou aos valores basais de sCr, corroborando a importância da revascularização precoce do enxerto. O atraso no diagnóstico de EATR pode comprometer o benefício da revascularização e impedir a recuperação total da função renal.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Transplant Renal Artery Stenosis (TRAS)]]></kwd>
<kwd lng="en"><![CDATA[Endovascular Surgery]]></kwd>
<kwd lng="pt"><![CDATA[Estenose de Artéria de Transplante Renal (EATR)]]></kwd>
<kwd lng="pt"><![CDATA[Cirurgia Endovascular]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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