<?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>0872-671X</journal-id>
<journal-title><![CDATA[Medicina Interna]]></journal-title>
<abbrev-journal-title><![CDATA[Medicina Interna]]></abbrev-journal-title>
<issn>0872-671X</issn>
<publisher>
<publisher-name><![CDATA[Sociedade Portuguesa de Medicina Interna]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0872-671X2021000400023</article-id>
<article-id pub-id-type="doi">10.24950/rspmi.o.224.4.2021</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Impact of Vitamin D Supplementation in a Heart Failure Population]]></article-title>
<article-title xml:lang="pt"><![CDATA[Impacto da Suplementação de Vitamina D numa População com Insuficiência Cardíaca]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cravo]]></surname>
<given-names><![CDATA[Márcia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pereira]]></surname>
<given-names><![CDATA[Nuno]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vigário]]></surname>
<given-names><![CDATA[Ana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[Tânia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rego]]></surname>
<given-names><![CDATA[Rita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendonça]]></surname>
<given-names><![CDATA[Catarina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marques]]></surname>
<given-names><![CDATA[Irene]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Hospitalar Universitário do Porto Serviço de Medicina Interna ]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro Hospitalar Universitário do Porto Serviço de Medicina Interna ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidade do Porto Instituto de Ciências Biomédicas de Abel Salazar (ICBAS) Unidade Multidisciplinar de Investigação Biomédica (UMIB) - ICBAS-UP/CHUP]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>28</volume>
<numero>4</numero>
<fpage>23</fpage>
<lpage>29</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0872-671X2021000400023&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0872-671X2021000400023&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0872-671X2021000400023&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  Vitamin D (VD) deficiency is a major comorbidity, frequently associated to heart failure (HF). VD supplementation effects in these patients remain unknown. Therefore, this study aims to evaluate the impact of VD deficiency treatment or therapy correction in HF patients´ cohort.  Material and Methods:  Observational retrospective sin-gle-center study enrolling patients admitted to a HF clinic with VD deficiency. VD was prescribed to these patients with reassessment of its levels 12 months later. Study population was divided in: [VD (+) group: corrected VD deficiency] and [VD (-): maintained VD deficiency]. Variables were analysed in both groups.  Results and Conclusion:  Eighty-seven patients were in-cluded with no difference of baseline characteristics between the groups. Poor compliance was reported in 40% of VD (-) patients. After treatment, there were no statistically difference in variables analysed between the two groups: NYHA class I, NT-proBNP, HF hospitalizations in the previous year, Duke Activity Score Index score and 6 minute Walking Distance. VD (+) group had a statistically significant decrease of NT-proBNP level over time (1740 ± 2761 pg/mL to 851 ± 1436 pg/mL, p = 0.001). Statistically, both groups had a significant reduction of the number of HF hospitalizations, between baseline and 12 months later (1.02 ± 0.67 to 0.29 ± 0.82, p&lt; 0.001 and 1.03 ± 1.04 to 0.40 ± 0.81, p = 0.001, for VD (+) and VD (-), respectively). Therefore, the correction of VD deficiency did not have impact in the variables analysed. The improvements reported within both groups may reflect the impact of the HF clinic optimized care.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Introdução:  O défice de vitamina D (VD) é uma comorbilidade associada frequentemente à insuficiência cardíaca (IC). Os efeitos da suplementação da VD nestes doentes são desconhecidos. Este estudo pretende avaliar o impacto da correção do défice de VD em doentes com IC. Material e Métodos: Neste estudo de centro único, observacional retrospetivo, foram incluídos doentes com défice de VD admitidos numa clínica de IC. A VD foi prescrita com reavaliação sérica aos 12 meses. A amostra foi dividida em 2 grupos: [VD (+): défice VD corrigido] e [VD (-): défice VD mantido]. As variáveis foram analisadas em ambos os grupos.  Resultados e Conclusão:  Foram incluídos oitenta e sete doentes, sem diferenças estatisticamente significativas nas características basais entre os dois grupos. Foi reportada baixa adesão terapêutica em 40% do grupo VD (-). Após tratamento com VD, não se verificaram diferenças estatisticamente significativas entre os dois grupos na classe de NYHA I, NT-proB-NP, hospitalizações por IC no ano anterior, pontuação no Duke Activity Score Index e na distância do teste de 6-minutos de marcha. No grupo VD (+) verificou-se um decréscimo estatisticamente significativo dos valores séricos do NT-proBNP ao longo do tempo (1740 ± 2761 pg/mL para 851 ± 1436 pg/mL, p = 0,001). Verificou-se, em ambos os grupos, uma redução nas hospitalizações por IC no ano anterior comparando o basal com avaliação aos 12 meses (1,02 ± 0,67 para 0,29 ± 0,82, p &lt; 0,001 e 1,03 ± 1,04 para 0,40 ± 0,81, p = 0,001, para o grupo VD (+) e VD (-), respetivamente). A correção do défice da VD não influenciou as variáveis analisadas. As melhorias observadas nos grupos poderão refletir o impacto da abordagem multidisciplinar pela clínica de IC.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Heart Failure]]></kwd>
<kwd lng="en"><![CDATA[Vitamin D]]></kwd>
<kwd lng="en"><![CDATA[Vitamin D Deficiency.]]></kwd>
<kwd lng="pt"><![CDATA[Deficiência Vitamina D]]></kwd>
<kwd lng="pt"><![CDATA[Insuficiência Cardíaca]]></kwd>
<kwd lng="pt"><![CDATA[Vitamina D]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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