{"id":434080,"date":"2026-08-24T17:23:58","date_gmt":"2026-08-24T09:23:58","guid":{"rendered":"https:\/\/library.usj.edu.mo\/?post_type=tnc_col_19837_item&#038;p=434080"},"modified":"2026-08-24T18:33:04","modified_gmt":"2026-08-24T10:33:04","slug":"assessment-of-the-post-acute-covid-19-syndrome-cardiovascular-effect-through-ecg-analysis","status":"publish","type":"tnc_col_19837_item","link":"https:\/\/library.usj.edu.mo\/zh\/scholarly-work-usj\/assessment-of-the-post-acute-covid-19-syndrome-cardiovascular-effect-through-ecg-analysis\/","title":{"rendered":"ASSESSMENT OF THE POST-ACUTE COVID-19 SYNDROME CARDIOVASCULAR EFFECT THROUGH ECG ANALYSIS"},"content":{"rendered":"<p>INTRODUCTION: SARS-COV-2, A VIRUS RESPONSIBLE FOR THE EMERGENCE OF THE LIFE-THREATENING DISEASE KNOWN AS COVID-19, EXHIBITS A DIVERSE RANGE OF CLINICAL MANIFESTATIONS. THE SPECTRUM OF SYMPTOMS VARIES WIDELY, ENCOMPASSING MILD TO SEVERE PRESENTATIONS, WHILE A CONSIDERABLE PORTION OF THE POPULATION REMAINS ASYMPTOMATIC. COVID-19, PRIMARILY A RESPIRATORY VIRUS, HAS BEEN LINKED TO CARDIOVASCULAR COMPLICATIONS IN SOME PATIENTS. NOTABLY, CARDIAC ISSUES CAN ALSO ARISE AFTER RECOVERY, CONTRIBUTING TO POST-ACUTE COVID-19 SYNDROME, A SIGNIFICANT CONCERN FOR PATIENT HEALTH. THE PRESENT STUDY INTENDS TO EVALUATE THE POST-ACUTE COVID-19 SYNDROME CARDIOVASCULAR EFFECT THROUGH ECG BY COMPARING PATIENTS AFFECTED WITH CARDIAC DISEASES WITHOUT COVID-19 DIAGNOSIS REPORT (CLASS 1) AND PATIENTS WITH CARDIAC PATHOLOGIES WHO PRESENT POST-ACUTE COVID-19 SYNDROME (CLASS 2). METHODS: FROM 2 BODY POSITIONS, A TOTAL OF 10 NON-LINEAR FEATURES, EXTRACTED EVERY 1 SECOND UNDER A MULTI-BAND ANALYSIS PERFORMED BY DISCRETE WAVELET TRANSFORM (DWT), HAVE BEEN COMPRESSED BY 6 STATISTICAL METRICS TO SERVE AS INPUTS FOR AN INDIVIDUAL FEATURE ANALYSIS BY THE MEANS OF MANN-WHITNEY U-TEST AND XROC CLASSIFICATION. RESULTS AND DISCUSSION: 480 MANN-WHITNEY U-TEST STATISTICAL ANALYSES AND XROC DISCRIMINATION APPROACHES HAVE BEEN DONE. THE PERCENTAGE OF STATISTICAL ANALYSIS WITH SIGNIFICANT DIFFERENCES (P&lt;0.05) WAS 30.42% (146 OUT OF 480). THE BEST OVERALL RESULTS WERE OBTAINED BY APPROXIMATING THE FEATURE ENERGY, WITH THE DATA COMPRESSOR KURTOSIS IN THE BODY POSITION DOWN. THOSE RESULTS WERE 83.33% OF ACCURACY, 83.33% OF SENSITIVITY, 83.33% OF SPECIFICITY AND 87.50% OF AUC. CONCLUSIONS: THE RESULTS SHOW THAT THE APPLIED METHODOLOGY CAN BE A WAY TO SHOW CHANGES IN CARDIAC BEHAVIOUR PROVOKED BY POST-ACUTE COVID-19 SYNDROME.<\/p>","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","class_list":["post-434080","tnc_col_19837_item","type-tnc_col_19837_item","status-publish","format-standard","hentry","tnc_tax_19818-english","tnc_tax_19716-faculty-of-business-and-law","tnc_tax_19659-journal-article"],"taxonomy_info":[],"featured_image_src_large":false,"author_info":[],"comment_info":0,"featured_img":false,"coauthors":[],"author_meta":{"author_link":"https:\/\/library.usj.edu.mo\/zh\/author\/emilychan\/","display_name":"emily chan"},"relative_dates":{"created":"Posted 3 \u5929 ago","modified":"Updated 3 \u5929 ago"},"absolute_dates":{"created":"Posted on 24 8 \u6708, 2026","modified":"Updated on 24 8 \u6708, 2026"},"absolute_dates_time":{"created":"Posted on 24 8 \u6708, 2026 5:23 \u4e0b\u5348","modified":"Updated on 24 8 \u6708, 2026 6:33 \u4e0b\u5348"},"featured_img_caption":"","tax_additional":{"tnc_tax_19993":{"linked":[],"unlinked":[],"slug":"tnc_tax_19993","name":"SDGs"},"tnc_tax_19818":{"linked":["<a href=\"https:\/\/library.usj.edu.mo\/zh\/language\/english\/\" class=\"advgb-post-tax-term\">ENGLISH<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">ENGLISH<\/span>"],"slug":"tnc_tax_19818","name":"LANGUAGE"},"tnc_tax_19716":{"linked":["<a href=\"https:\/\/library.usj.edu.mo\/zh\/faculty-research-unit\/faculty-of-business-and-law\/\" class=\"advgb-post-tax-term\">FACULTY OF BUSINESS AND LAW<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">FACULTY OF BUSINESS AND LAW<\/span>"],"slug":"tnc_tax_19716","name":"FACULTY \/ RESEARCH UNIT"},"tnc_tax_19664":{"linked":[],"unlinked":[],"slug":"tnc_tax_19664","name":"SUBJECT"},"tnc_tax_19659":{"linked":["<a href=\"https:\/\/library.usj.edu.mo\/zh\/resource-type\/journal-article\/\" class=\"advgb-post-tax-term\">Journal Article<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">Journal Article<\/span>"],"slug":"tnc_tax_19659","name":"Document Type"}},"series_order":"","_links":{"self":[{"href":"https:\/\/library.usj.edu.mo\/zh\/wp-json\/wp\/v2\/tnc_col_19837_item\/434080","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/library.usj.edu.mo\/zh\/wp-json\/wp\/v2\/tnc_col_19837_item"}],"about":[{"href":"https:\/\/library.usj.edu.mo\/zh\/wp-json\/wp\/v2\/types\/tnc_col_19837_item"}],"replies":[{"embeddable":true,"href":"https:\/\/library.usj.edu.mo\/zh\/wp-json\/wp\/v2\/comments?post=434080"}],"version-history":[{"count":1,"href":"https:\/\/library.usj.edu.mo\/zh\/wp-json\/wp\/v2\/tnc_col_19837_item\/434080\/revisions"}],"predecessor-version":[{"id":436302,"href":"https:\/\/library.usj.edu.mo\/zh\/wp-json\/wp\/v2\/tnc_col_19837_item\/434080\/revisions\/436302"}],"wp:attachment":[{"href":"https:\/\/library.usj.edu.mo\/zh\/wp-json\/wp\/v2\/media?parent=434080"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}