<?xml version="1.0" encoding="UTF-8"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-10-28T02:56:29Z</responseDate><request verb="GetRecord" identifier="oai:kostu-rdlopen.rawdatalibrary.net:kostu/10394" metadataPrefix="oai_dc">https://kostu-rdlopen.rawdatalibrary.net/oai/request</request><GetRecord><record><header><identifier>oai:kostu-rdlopen.rawdatalibrary.net:kostu/10394</identifier><datestamp>2026-10-27T23:53:14Z</datestamp><setSpec>openaire</setSpec><setSpec>com_kostu_10000</setSpec><setSpec>col_kostu_10001</setSpec><setSpec>com_kostu_10007</setSpec><setSpec>col_kostu_10061</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><dc:title>Predictive value of P wave parameters, indices, and a novel electrocardiographic marker for silent cerebral infarction and future cerebrovascular events</dc:title><dc:creator>Cagdas, Metin</dc:creator><dc:creator>Celik, Aziz Inan</dc:creator><dc:creator>Bezgin, Tahir</dc:creator><dc:creator>Baytugan, Nart Zafer</dc:creator><dc:creator>Dagli, Muharrem</dc:creator><dc:creator>Zengin, Ahmet</dc:creator><dc:creator>Ozmen, Caglar</dc:creator><dc:creator>Karakoyun, Suleyman</dc:creator><dc:subject>Cerebrovascular events</dc:subject><dc:subject>Novel electrocardiographic marker</dc:subject><dc:subject>P wave</dc:subject><dc:subject>Silent cerebral infarction</dc:subject><dc:description>Background: Silent cerebral infarction (SCI) is a neuronal injury without a clinically apparent stroke or transient ischaemic attack. Left atrial cardiomyopathy is closely associated with SCI. P wave changes in the electrocardiogram (ECG) provide significant information about the development of atrial cardiomyopathy. This study evaluated the role of P wave parameters and indices and a novel ECG parameter in predicting SCI, future cerebrovascular events, and atrial fibrillation/flutter. Materials and methods: A total of 272 patients were retrospectively screened and divided into two groups according to SCI. Cerebrovascular events and atrial fibrillation/flutter were defined as the study's outcomes. P wave parameters, indices, and a novel ECG parameter called the P wave ratio (PWR) were calculated from ECGs, and the relationship between SCI and outcomes was investigated. Results: The maximum P wave duration (PWD), P wave dispersion (PWdisp), PWD measured from the D2 lead (PWDD2), P wave peak time measured from the D2 lead (PWPTD2), PWPT measured from the V1 lead (PWPTV1), and P wave terminal force (PWTFV1) were significantly longer in the SCI group. Both partial and advanced inter atrial block (IAB) were significantly high in the SCI group. The novel parameter P wave ratio (PWR) was significantly longer in the SCI group (0.55 ± 0.08 vs. 0.46 ± 0.09; p &lt; 0.001). In multivariate regression analysis, PWdisp (OR: 1.101, p &lt; 0.001), PWPTD2 (OR: 1.095, p = 0.017), and PWR (OR: 1.231, p &lt; 0.001) were found to be independent predictors of SCI. Cox regression analysis revealed that the PWR (HR 1.077; 95% CI 1.029–1.128; p = 0.001) was associated with cerebrovascular events and atrial fibrillation/flutter. Conclusion: In our study, we observed that PWR could be a valuable parameter for predicting SCI and future cerebrovascular events.</dc:description><dc:publisher>Elsevier B.V.</dc:publisher><dc:date>2023</dc:date><dc:type>Article</dc:type><dc:identifier>https://rdlopen.rawdatalibrary.net/r/kostu/10394</dc:identifier><dc:identifier>https://doi.org/10.1016/j.jelectrocard.2023.09.004</dc:identifier><dc:identifier>0022-0736</dc:identifier><dc:language>en</dc:language><dc:relation>Journal of Electrocardiology</dc:relation><dc:rights>info:eu-repo/semantics/closedAccess</dc:rights><dc:type>info:eu-repo/semantics/article</dc:type><dc:identifier>https://kostu-rdlopen.rawdatalibrary.net/tr/items/kostu/10394</dc:identifier></oai_dc:dc></metadata></record></GetRecord></OAI-PMH>