Entire process of electrocardiogram recording of Wellens syndrome:A case report

作     者：Na Tang Yi-Hua Li Liang Kang Rong Li Qing-Min Chu 

作者机构：The First Clinical Medical CollegeGuangzhou University of Chinese MedicineGuangzhou 510000Guangdong ProvinceChina Department of Cardiovascular DiseaseThe First Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou 510000Guangdong ProvinceChina 

出 版 物：《World Journal of Clinical Cases》 (世界临床病例杂志)

年 卷 期：2022年第10卷第19期

页      面：6672-6678页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 1002[医学-临床医学] 08[工学] 1010[医学-医学技术（可授医学、理学学位）] 100201[医学-内科学(含：心血管病、血液病、呼吸系病、消化系病、内分泌与代谢病、肾病、风湿病、传染病)] 10[医学] 

主　　题：Wellens syndrome Pseudo-normalized T-waves Unstable angina pectoris Myocardial ischemia Electrocardiogram Case report 

摘      要：BACKGROUND Wellens syndrome is an electrocardiogram(ECG)pattern seen in high-risk patients with unstable angina *** is characterized by inverted or biphasic T-waves that change into positive or pseudo-normalized waves at precordial leads when the patient experiences an angina attack;however,the mechanism for this condition remains *** SUMMARY A 47-year-old male patient experienced repeated,unprovoked episodes of chest pain for20 d,with worsening during the previous *** the day of admission,he experienced episodes of paroxysmal chest pain lasting more than 30 min,in addition to radiating pain to the left arm and exertional *** patient presented to the emergency department with no chest pain or other discomfort at that *** at presentation showed sinus tachycardia and Twave changes,which were identified as Wellens syndrome when combined with previous ECG *** and myocardial enzymology examinations were normal when angina was present,but the ECG showed inverted or biphasic Twaves when angina was *** percutaneous coronary intervention,the ECGs demonstrated inverted or biphasic T-waves in the anterior precordial leads on days 0,1,and 2,but normal T-waves on day *** ECGs showed no subsequent ischemic ST-T-wave *** The Wellens syndrome pseudo-normalized T-waves likely reflect development of unstable angina pectoris into the hyperacute phase of ST-segment elevation myocardial infarction.