Rapid cardiac ischemia detection with an epicardial graphene probe

Frontiers in Cardiovascular Medicine

Cardiovascular Medicine

Grzegorz Suwalski¹  Marek Galanty²  Piotr Trębacz²  Jacek Sterna²  Beata Degórska²  Jan Frymus²  Mikhal Baranski²  Sandra Lepak-Kuc³  Małgorzata Jakubowska³  Daniel Janczak³ 

[1] Department of Cardiac Surgery, Military Institute of Medicine, Warsaw, Poland;Department of Small Animal Diseases and Clinic, Faculty of Veterinary Medicine, Warsaw University of Life Sciences, Warsaw, Poland;Faculty of Mechatronics, Warsaw University of Technology, Poland;

关键词: cardiac ischemia;    epicardial electrocardiography;    coronary artery bypass grafting;    cardiac surgery;    myocardial infarction;   

DOI  :  10.3389/fcvm.2023.1111651

 received in 2023-01-24, accepted in 2023-06-05,  发布年份 2023

来源: Frontiers

【 摘 要 】

IntroductionIn this study, a new probe was designed to enable electrocardiography of a rotated heart during cardiac surgery when skin electrodes became non-functional. This probe adhered non-invasively to the epicardium and collected the ECG signal independently from the position of the heart. The study compared the accuracy of cardiac ischemia detection between classic skin and epicardial electrodes in an animal model.MethodsUsing six pigs, an open chest model was devised with cardiac ischemia induction by coronary artery ligation in two non-physiologic heart positions. Both the accuracy and the time of detection of electrocardiographic symptoms of acute cardiac ischemia were compared between skin and epicardial methods of signal collection.ResultsHeart rotation to expose either the anterior or the posterior wall resulted in a distortion or loss of the ECG signal collected by skin electrodes after coronary artery ligation, standard skin ECG monitoring did not reveal any ischemia symptoms. Attachment of an epicardial probe on the anterior and posterior walls helped in the recovery of the normal ECG wave. After ligation of the coronary artery, the epicardial probes recorded cardiac ischemia within 40 s.DiscussionThis study highlighted the effectiveness of ECG monitoring with epicardial probes in a rotated heart. It can be concluded that epicardial probes can detect the presence of acute ischemia of a rotated heart when skin ECG monitoring becomes ineffective.

【 授权许可】

Unknown   
© 2023 Suwalski, Galanty, Degórska, Sterna, Frymus, Baranski, Trębacz, Janczak, Lepak-Kuc and Jakubowska.