{"id":5090,"date":"2026-03-30T14:42:39","date_gmt":"2026-03-30T14:42:39","guid":{"rendered":"https:\/\/cognitionconferences.com\/emergencymedicine\/?post_type=speaker&#038;p=5090"},"modified":"2026-03-30T14:42:43","modified_gmt":"2026-03-30T14:42:43","slug":"mederle-ovidiu-alexandru","status":"publish","type":"speaker","link":"https:\/\/cognitionconferences.com\/emergencymedicine\/speaker\/mederle-ovidiu-alexandru\/","title":{"rendered":"Mederle Ovidiu Alexandru"},"content":{"rendered":"<p><strong>Abstract:<br \/>\n<\/strong><\/p>\n<p style=\"text-align: left;\">Pulmonary embolism (PE) is a frequent thrombotic complication associated with SARS-CoV-2 infection and is linked to significant early mortality. Accurate early risk stratification in the emergency department (ED) remains challenging, and it is unclear how well commonly used PE prognostic tools perform in patients with concomitant COVID-19. Materials and Methods: We conducted a retrospective, single-centre study including 538 consecutive patients with acute PE and with or without confirmed SARS-CoV-2 infection admitted through the ED. Univariate analysis and machine learning models were employed to assess mortality risk. Results: In univariate analysis, mortality was strongly associated with sepsis (OR 11.68) and PESI class V (OR 5.56) and was also linked to higher neutrophil count (OR 1.19), platelet count (OR 1.12), and NT-proBNP (OR 1.20). In the non-COVID cohort, XGBoost and RF showed better discrimination than PESI class (AUC 0.864 and 0.834 vs. 0.725), while Support Vector Machines (SVM) was lower (AUC 0.740). On COVID-19 external validation, discrimination decreased: XGBoost AUC was 0.635, RF 0.614, PESI 0.584, and SVM showed no discrimination. Conclusions: ML models using routinely available ED variables improved in-hospital mortality prediction compared with PESI in non-COVID PE, but performance declined in COVID-19 patients, suggesting limited generalizability and the need for COVID-specific refinement and prospective multicenter validation.<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n","protected":false},"featured_media":5091,"template":"","meta":{"_acf_changed":false},"schedule":[5],"speaker-category":[6],"class_list":["post-5090","speaker","type-speaker","status-publish","has-post-thumbnail","hentry","schedule-day-1","speaker-category-speakers"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mederle Ovidiu Alexandru | Victor Babe\u015f University of Medicine and Pharmacy | Romanian<\/title>\n<meta name=\"description\" content=\"Dr. habil. Ovidiu Alexandru Mederle, Department of Surgery, Faculty of Medicine, \u201cVictor Babes\u201d University of Medicine and Pharmacy Timisoara, Ovidiu Alexandru Mederle MD, PhD, Dr. habil. Professor and Consultant in Emergency Medicine &amp; ED Lead Clinician City Hospital Timisoara, e-mail: mederle.ovidiu@umft.ro, Romania. Ovidiu Mederle does research in Emergency Medicine, Applied Medicine, Nano Medicine, Imunohistochemical staining, Member in: Romanian Society of Morphology, European Society of Emergency Medicine (EUSEM), Romanian Society of Emergency Medicine. - Hirsch Index 10 (Clarivate). Member in two research projects as Projects manager. - 4 Patents - 11 scientific books - More than 75 ISI articles and 40 scientific papers at international conferences - 5 special international prizes.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cognitionconferences.com\/emergencymedicine\/speaker\/mederle-ovidiu-alexandru\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mederle Ovidiu Alexandru | Victor Babe\u015f University of Medicine and Pharmacy | Romanian\" \/>\n<meta property=\"og:description\" content=\"Dr. habil. Ovidiu Alexandru Mederle, Department of Surgery, Faculty of Medicine, \u201cVictor Babes\u201d University of Medicine and Pharmacy Timisoara, Ovidiu Alexandru Mederle MD, PhD, Dr. habil. Professor and Consultant in Emergency Medicine &amp; ED Lead Clinician City Hospital Timisoara, e-mail: mederle.ovidiu@umft.ro, Romania. Ovidiu Mederle does research in Emergency Medicine, Applied Medicine, Nano Medicine, Imunohistochemical staining, Member in: Romanian Society of Morphology, European Society of Emergency Medicine (EUSEM), Romanian Society of Emergency Medicine. - Hirsch Index 10 (Clarivate). Member in two research projects as Projects manager. - 4 Patents - 11 scientific books - More than 75 ISI articles and 40 scientific papers at international conferences - 5 special international prizes.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cognitionconferences.com\/emergencymedicine\/speaker\/mederle-ovidiu-alexandru\/\" \/>\n<meta property=\"og:site_name\" content=\"Cognition Conferences\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-30T14:42:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cognitionconferences.com\/emergencymedicine\/wp-content\/uploads\/2026\/03\/MEDERLE-Ovidiu-Alexandru.png\" \/>\n\t<meta property=\"og:image:width\" content=\"200\" \/>\n\t<meta property=\"og:image:height\" content=\"200\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/cognitionconferences.com\\\/emergencymedicine\\\/speaker\\\/mederle-ovidiu-alexandru\\\/\",\"url\":\"https:\\\/\\\/cognitionconferences.com\\\/emergencymedicine\\\/speaker\\\/mederle-ovidiu-alexandru\\\/\",\"name\":\"Mederle Ovidiu Alexandru | Victor Babe\u015f University of Medicine and Pharmacy | Romanian\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/cognitionconferences.com\\\/emergencymedicine\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/cognitionconferences.com\\\/emergencymedicine\\\/speaker\\\/mederle-ovidiu-alexandru\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/cognitionconferences.com\\\/emergencymedicine\\\/speaker\\\/mederle-ovidiu-alexandru\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/cognitionconferences.com\\\/emergencymedicine\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/MEDERLE-Ovidiu-Alexandru.png\",\"datePublished\":\"2026-03-30T14:42:39+00:00\",\"dateModified\":\"2026-03-30T14:42:43+00:00\",\"description\":\"Dr. habil. Ovidiu Alexandru Mederle, Department of Surgery, Faculty of Medicine, \u201cVictor Babes\u201d University of Medicine and Pharmacy Timisoara, Ovidiu Alexandru Mederle MD, PhD, Dr. habil. Professor and Consultant in Emergency Medicine & ED Lead Clinician City Hospital Timisoara, e-mail: mederle.ovidiu@umft.ro, Romania. Ovidiu Mederle does research in Emergency Medicine, Applied Medicine, Nano Medicine, Imunohistochemical staining, Member in: Romanian Society of Morphology, European Society of Emergency Medicine (EUSEM), Romanian Society of Emergency Medicine. - Hirsch Index 10 (Clarivate). 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Ovidiu Alexandru Mederle, Department of Surgery, Faculty of Medicine, \u201cVictor Babes\u201d University of Medicine and Pharmacy Timisoara, Ovidiu Alexandru Mederle MD, PhD, Dr. habil. Professor and Consultant in Emergency Medicine & ED Lead Clinician City Hospital Timisoara, e-mail: mederle.ovidiu@umft.ro, Romania. Ovidiu Mederle does research in Emergency Medicine, Applied Medicine, Nano Medicine, Imunohistochemical staining, Member in: Romanian Society of Morphology, European Society of Emergency Medicine (EUSEM), Romanian Society of Emergency Medicine. - Hirsch Index 10 (Clarivate). 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Ovidiu Alexandru Mederle, Department of Surgery, Faculty of Medicine, \u201cVictor Babes\u201d University of Medicine and Pharmacy Timisoara, Ovidiu Alexandru Mederle MD, PhD, Dr. habil. Professor and Consultant in Emergency Medicine & ED Lead Clinician City Hospital Timisoara, e-mail: mederle.ovidiu@umft.ro, Romania. Ovidiu Mederle does research in Emergency Medicine, Applied Medicine, Nano Medicine, Imunohistochemical staining, Member in: Romanian Society of Morphology, European Society of Emergency Medicine (EUSEM), Romanian Society of Emergency Medicine. - Hirsch Index 10 (Clarivate). 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