<?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>S1646-706X2023000300167</article-id>
<article-id pub-id-type="doi">10.48750/acv.578</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[ChEVAR technique for emergent aneurysm repair - a retrospective case series]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vetera]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinto]]></surname>
<given-names><![CDATA[Pedro Sá]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pereira]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martins]]></surname>
<given-names><![CDATA[Joana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendes]]></surname>
<given-names><![CDATA[Daniel A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rocha]]></surname>
<given-names><![CDATA[Henrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinelo]]></surname>
<given-names><![CDATA[Andreia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Machado]]></surname>
<given-names><![CDATA[Rui]]></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-group>
<aff id="Af1">
<institution><![CDATA[,Centro Hospitalar Universitário de Santo António Angiology and Vascular Surgery Department ]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro Hospitalar Universitário de Santo António, Kidney Transplantation Unit ]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Ciências Biomédicas Abel Salazar  ]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>09</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>09</month>
<year>2023</year>
</pub-date>
<volume>19</volume>
<numero>3</numero>
<fpage>167</fpage>
<lpage>170</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S1646-706X2023000300167&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S1646-706X2023000300167&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S1646-706X2023000300167&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Chimney EVAR (ChEVAR) for the treatment of complex abdominal aortic aneurysm (AAA) has been largely relegated for when fenestrated endografts are unavailable, especially due to durability concerns. However, the off-the-shelf nature of ChEVAR makes it a good option for emergent AAA repair. We report our institutional experience in ChEVAR in an urgent setting.  Methods: ChEVAR procedures were collected f rom 2019 to 2023 in a tertiary hospital, and a retrospective analysis was performed. This includes gathered information f rom electronic medical records, surgical reports and the picture archiving system. Descriptive statistics were applied. The main endpoints were technical success,30-day and 1-year survival.  Results: Five patients were submitted to urgent aneurysm repair using the chEVAR technique. Average age was 73,4 years and all patients were male. Arterial hypertension was present in 100% patients and all patients were ASA 4. Indications for surgery were post EVAR type 1a endoleak with associated rupture or abdominal pain in two patients; symptomatic/contained rupture of pararenal AAA in two patients; and contained rupture of a thoracoabdominal aneurysm in one patient. A total of eight target vessels were catheterized: two patients required single-vessel chimney and the remainder two-vessel chimney. Target vessels were two superior mesenteric arteries and six renal arteries. Technical success rate was 100% and 30-day mortality was 0%. There were no major complications. Follow-up time is 20.2 months (4.7-38). Target vessel patency during the follow-up period was 87.5%. Three patients (60%) died due to non-aortic related pathologies, on average 18 months after surgery (4.7-38), with a 1-year survival of 80%.  Conclusion: Our experience with ChEVAR for emergent AAA repair is satisfactory, with high technical success rates and low short-term mortality. Sac regression, low rates of target vessel occlusion and type 1a endoleaks reveal a favourable profile for aneurysm exclusion. ChEVAR is a viable option in emergent setting for patients unfit for open repair.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Aortic Aneurysm, Abdominal]]></kwd>
<kwd lng="en"><![CDATA[Aneurysm, Ruptured]]></kwd>
<kwd lng="en"><![CDATA[Endovascular Aneurysm Repair]]></kwd>
<kwd lng="en"><![CDATA[Chimney]]></kwd>
<kwd lng="en"><![CDATA[Parallel stents]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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