Electrocardiogram Features in Non-Cardiac Diseases: From Mechanisms to Practical Aspects

Alexandr Ceasovschih,1,2,* Victorița Șorodoc,1,2 Serghei Covantsev,3,* Anastasia Balta,1,2,* Jamol Uzokov,4,* Sergio E Kaiser,5 Abdallah Almaghraby,6 Cătălina Lionte,1,2 Cristian Stătescu,1,7 Radu A Sascău,1,7 Viviana Onofrei,1,8 Raluca Ecaterina Haliga,1,2,* Alexandra Stoica,1,2,* Cristina Bologa,1,2 Ștefan Ailoaei,7 Yusuf Ziya Şener,9 Nicholas G Kounis,10 Laurențiu Șorodoc1,2 1Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania; 2 2nd Internal Medicine Department, “Sf. Spiridon” Clinical Emergency Hospital, Iasi, Romania; 3Department of Research and Clinical Development, Botkin Hospital, Moscow, Russia; 4Department of Cardiology, Republican Specialized Scientific Practical Medical Center of Therapy and Medical Rehabilitation, Tashkent, Uzbekistan; 5Discipline of Clinical and Experimental Pathophysiology, Rio de Janeiro State University, Rio de Janeiro, Brazil; 6Department of Cardiology, Ibrahim Bin Hamad Obaidallah Hospital, Ras Al Khaimah, United Arab Emirates; 7Department of Cardiology, “Prof. Dr. George I.M. Georgescu” Cardiovascular Diseases Institute, Iasi, Romania; 8Department of Cardiology, “Sf. Spiridon” Clinical Emergency Hospital, Iasi, Romania; 9Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkiye; 10Department of Internal Medicine, Division of Cardiology, University of Patras Medical School, Patras, Greece*These authors contributed equally to this workCorrespondence: Victorița Șorodoc, 2nd Internal Medicine Department, “Sf. Spiridon” Clinical Emergency Hospital, Independentei 1 Street, Iasi, 700106, Romania, Tel +40232 240 822, Email [email protected] Viviana Onofrei, Cardiology Department, “Sf. Spiridon” Clinical Emergency Hospital, Independentei 1 Street, Iasi, 700106, Romania, Email [email protected]: Despite the noteworthy advancements and the introduction of new technologies in diagnostic tools for cardiovascular disorders, the electrocardiogram (ECG) remains a reliable, easily accessible, and affordable tool to use. In addition to its crucial role in cardiac emergencies, ECG can be considered a very useful ancillary tool for the diagnosis of many non-cardiac diseases as well. In this narrative review, we aimed to explore the potential contributions of ECG for the diagnosis of non-cardiac diseases such as stroke, migraine, pancreatitis, Kounis syndrome, hypothermia, esophageal disorders, pulmonary embolism, pulmonary diseases, electrolyte disturbances, anemia, coronavirus disease 2019, different intoxications and pregnancy.Keywords: electrocardiography, electrocardiogram, features, non-cardiac diseases, EC