was read the article
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"apellidos" => "Peña-Gil" ] 5 => array:2 [ "nombre" => "José Novo" "apellidos" => "Platas" ] 6 => array:2 [ "nombre" => "Javier" "apellidos" => "García-Seara" ] 7 => array:2 [ "nombre" => "Pilar" "apellidos" => "Mazón" ] 8 => array:2 [ "nombre" => "Alfonso" "apellidos" => "Varela-Román" ] 9 => array:2 [ "nombre" => "Jose María" "apellidos" => "García-Acuña" ] 10 => array:2 [ "nombre" => "José Ramón" "apellidos" => "González-Juanatey" ] ] ] ] ] "idiomaDefecto" => "en" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2174204919300091?idApp=UINPBA00004E" "url" => "/21742049/0000003800000001/v2_201911290936/S2174204919300091/v2_201911290936/en/main.assets" ] "en" => array:12 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Editorial comment</span>" "titulo" => "Epidemiology of atrial fibrillation in Galicia: Insights from ‘big data’" "tieneTextoCompleto" => true "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "31" "paginaFinal" => "32" ] ] "autores" => array:1 [ 0 => array:3 [ "autoresLista" => "Diogo Magalhães Cavaco" "autores" => array:1 [ 0 => array:3 [ "nombre" => "Diogo Magalhães" "apellidos" => "Cavaco" "email" => array:1 [ 0 => "cavacodm@gmail.com" ] ] ] "afiliaciones" => array:1 [ 0 => array:2 [ "entidad" => "Serviço de Cardiologia, Hospital de Santa Cruz, CHLO, Carnaxide, Portugal" "identificador" => "aff0005" ] ] ] ] "titulosAlternativos" => array:1 [ "pt" => array:1 [ "titulo" => "Epidemiologia da fibrilhação auricular na Galiza: perspetivas de uma vasta quantidade de dados" ] ] "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">Epidemiological data on most medical conditions have traditionally been derived from registries and clinical trials. Although such data are obtained under highly controlled conditions, it is not certain whether the results correlate with key epidemiological indicators such as incidence, prevalence, mortality, morbidity and treatment status in a given population. The larger the number of subjects included, the greater the probability of obtaining an accurate result.</p><p id="par0010" class="elsevierStylePara elsevierViewall">Over the last decade, there has been a rapid digital transformation in healthcare, with the increased use of electronic medical records, healthcare information systems, and handheld, wearable and smart devices. A massive quantity and variety of health-related data today is in digital form, including not only clinical information, but also data on genomics and proteomics, sociodemographics and insurance claims.<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">1</span></a></p><p id="par0015" class="elsevierStylePara elsevierViewall">This kind of information is what is known as ‘big data’, many of the current applications of which are not related to medicine. It is by analyzing big data that companies such as Google, Amazon and Netflix are able to predict the behavior of their customers (what products they can be persuaded to buy, what kind of advertisements or movies they want to see, and so on).</p><p id="par0020" class="elsevierStylePara elsevierViewall">New data analysis methods have also been developed to handle big data. Machine learning automates analytical model building. Data mining uses machine learning processes for knowledge discovery and predictive modeling in large datasets, searching for hidden insights. Unlike traditional statistical methods, these tools do not start with a predefined model; the model is built at the same time as underlying patterns are discovered. Nevertheless, traditional statistical methods can also be applied to big data.<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">2</span></a></p><p id="par0025" class="elsevierStylePara elsevierViewall">Electronic medical records for entire regions and populations constitute a vast quantity of data and many epidemiological and clinical insights can be obtained from this information.</p><p id="par0030" class="elsevierStylePara elsevierViewall">In the current issue of the <span class="elsevierStyleItalic">Journal</span>, Rodríguez-Mañero et al.<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">3</span></a> present a study using electronic health records from the Spanish region of Galicia. The population is composed of around 380<span class="elsevierStyleHsp" style=""></span>000 individuals according to the population information technology system of the Galician regional health service. Information on diagnosis, treatment status and complications in atrial fibrillation patients was obtained from various sources, including primary health care, hospital discharge and pharmacy records. Traditional statistical methods were used to handle this large amount of data.</p><p id="par0035" class="elsevierStylePara elsevierViewall">The authors were able to estimate the overall prevalence of atrial fibrillation in Galicia. The figure they obtained (2.08%) is similar to that obtained from Spanish registries. This is not the first such study to be published. In an Israel-based population study, the prevalence of atrial fibrillation was 3.0% in individuals older than 21 years.<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">4</span></a> As in other studies, the prevalence increases with age and is the same overall in men and women, although women tend to develop atrial fibrillation later in life.</p><p id="par0040" class="elsevierStylePara elsevierViewall">The treatment status of patients diagnosed with atrial fibrillation was also assessed. Overall, two-thirds of the patients were anticoagulated, a slightly higher figure according to the authors than that reported in previous Spanish studies. Most of these patients (71.6%) were treated with vitamin K antagonists. As expected, the rate of oral anticoagulation prescription increased with higher CHA<span class="elsevierStyleInf">2</span>DS<span class="elsevierStyleInf">2</span>VASc scores.</p><p id="par0045" class="elsevierStylePara elsevierViewall">There are some advantages of this kind of study derived from the longitudinal nature of the data (although they are not explored in the paper). It will be interesting to see the changes in patterns of anticoagulation. Will a higher percentage of patients be anticoagulated in the future? How will direct oral anticoagulants (DOACs) affect this? It is likely that in 2019, the number of patients anticoagulated with vitamin K antagonists will be lower compared to DOACs than in 2014.</p><p id="par0050" class="elsevierStylePara elsevierViewall">With regard to mortality, the study also confirms data obtained from registries. Mortality of atrial fibrillation patients was high, and was related to the disease – patients with higher CHA<span class="elsevierStyleInf">2</span>DS<span class="elsevierStyleInf">2</span>VASc scores had higher mortality (confirming the power of this score), as did females and patients with dementia.</p><p id="par0055" class="elsevierStylePara elsevierViewall">A limitation of this kind of study (as in any large-scale epidemiological database-based study) is variability in coding by multiple physicians at different steps of the process, which means the system is prone to error.</p><p id="par0060" class="elsevierStylePara elsevierViewall">Although the information in this paper is not new, it confirms that epidemiological indicators obtained from clinical registries and small epidemiological studies are of good quality and reliable.</p><p id="par0065" class="elsevierStylePara elsevierViewall">The main strength of the study is, of course, the size of the database and the reliable coverage of the entire population of a particular region.</p><p id="par0070" class="elsevierStylePara elsevierViewall">It will be interesting to see if genuine ‘big data’ applications will be developed for this subset of the Spanish population – more could be learned about the prognosis, unknown risk factors and outcomes of these patients using these new tools.</p><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Conflicts of interest</span><p id="par0075" class="elsevierStylePara elsevierViewall">The author has no conflicts of interest to declare.</p></span></span>" "textoCompletoSecciones" => array:1 [ "secciones" => array:2 [ 0 => array:2 [ "identificador" => "sec0005" "titulo" => "Conflicts of interest" ] 1 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0015" "bibliografiaReferencia" => array:4 [ 0 => array:3 [ "identificador" => "bib0025" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Big data analytics to improve cardiovascular care: promise and challenges" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:3 [ 0 => "J.S. Rumsfeld" 1 => "K.E. Joynt" 2 => "T.M. Maddox" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1038/nrcardio.2016.42" "Revista" => array:6 [ "tituloSerie" => "Nat Rev Cardiol" "fecha" => "2016" "volumen" => "13" "paginaInicial" => "350" "paginaFinal" => "359" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/27009423" "web" => "Medline" ] ] ] ] ] ] ] ] 1 => array:3 [ "identificador" => "bib0030" "etiqueta" => "2" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Machine learning for prediction of 30-day mortality after ST elevation myocardial infraction: an Acute Coronary Syndrome Israeli Survey data mining study" "autores" => array:1 [ 0 => array:2 [ "etal" => true "autores" => array:3 [ 0 => "R. Shouval" 1 => "A. Hadanny" 2 => "N. Shlomo" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/j.ijcard.2017.05.067" "Revista" => array:6 [ "tituloSerie" => "Int J Cardiol" "fecha" => "2017" "volumen" => "246" "paginaInicial" => "7" "paginaFinal" => "13" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/28867023" "web" => "Medline" ] ] ] ] ] ] ] ] 2 => array:3 [ "identificador" => "bib0035" "etiqueta" => "3" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Prevalence and outcomes of atrial fibrillation in a European healthcare area gained through the processing of a health information technology system" "autores" => array:1 [ 0 => array:2 [ "etal" => true "autores" => array:3 [ 0 => "M. Rodríguez-Mañero" 1 => "E. López-Pardo" 2 => "A. Cordero-Fort" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/j.repc.2018.06.008" "Revista" => array:6 [ "tituloSerie" => "Rev Port Cardiol" "fecha" => "2019" "volumen" => "38" "paginaInicial" => "21" "paginaFinal" => "29" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/30658865" "web" => "Medline" ] ] ] ] ] ] ] ] 3 => array:3 [ "identificador" => "bib0040" "etiqueta" => "4" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Prospective national study of the prevalence, incidence, management and outcome of a large contemporary cohort of patients with incident non-valvular atrial fibrillation" "autores" => array:1 [ 0 => array:2 [ "etal" => true "autores" => array:3 [ 0 => "M. Haim" 1 => "M. Hoshen" 2 => "O. Reges" ] ] ] ] ] "host" => array:1 [ 0 => array:1 [ "Revista" => array:5 [ "tituloSerie" => "J Am Heart Assoc" "fecha" => "2015" "volumen" => "4" "paginaInicial" => "1" "paginaFinal" => "12" ] ] ] ] ] ] ] ] ] ] ] "idiomaDefecto" => "en" "url" => "/21742049/0000003800000001/v2_201911290936/S2174204919300108/v2_201911290936/en/main.assets" "Apartado" => array:4 [ "identificador" => "9917" "tipo" => "SECCION" "en" => array:2 [ "titulo" => "Original Articles" "idiomaDefecto" => true ] "idiomaDefecto" => "en" ] "PDF" => "https://static.elsevier.es/multimedia/21742049/0000003800000001/v2_201911290936/S2174204919300108/v2_201911290936/en/main.pdf?idApp=UINPBA00004E&text.app=https://revportcardiol.org/" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2174204919300108?idApp=UINPBA00004E" ]
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2021 June | 13 | 14 | 27 |
2021 May | 31 | 39 | 70 |
2021 April | 14 | 47 | 61 |
2021 March | 20 | 15 | 35 |
2021 February | 34 | 13 | 47 |
2021 January | 23 | 13 | 36 |
2020 December | 20 | 16 | 36 |
2020 November | 13 | 13 | 26 |
2020 October | 16 | 15 | 31 |
2020 September | 17 | 9 | 26 |
2020 August | 8 | 7 | 15 |
2020 July | 12 | 10 | 22 |
2020 June | 19 | 15 | 34 |
2020 May | 10 | 5 | 15 |
2020 April | 15 | 14 | 29 |
2020 March | 11 | 9 | 20 |
2020 February | 23 | 21 | 44 |
2020 January | 7 | 9 | 16 |
2019 December | 20 | 7 | 27 |
2019 November | 10 | 10 | 20 |
2019 October | 7 | 5 | 12 |
2019 September | 12 | 9 | 21 |
2019 August | 7 | 5 | 12 |
2019 July | 11 | 5 | 16 |
2019 June | 14 | 20 | 34 |
2019 May | 19 | 14 | 33 |
2019 April | 14 | 18 | 32 |
2019 March | 32 | 30 | 62 |
2019 February | 2 | 0 | 2 |