Masquerading bundle branch block: An electrocardiographic harbinger of advanced conduction system disease [0.03%]
伪性束支阻滞：传导系统疾病加重的预兆
Prince Darko,Jefferson Awah,Neha Mehta et al.
Prince Darko et al.
Background: Masquerading bundle branch block (MBBB) is a rare and underrecognized electrocardiographic pattern characterized by features of both right and left bundle branch block on the same tracing. Unlike typical bifas...
Fragmented QRS and severe coronary stenosis: Methodological considerations and pathophysiological insights [0.03%]
QRS波群碎裂与严重冠脉狭窄：方法学思考及病理生理启示
Orhan Karayiğit,Muhammet Cihat Çelik,Emrullah Kızıltunç
Orhan Karayiğit
Impact of obesity on ECG waveforms across racial/ethnic groups in the general population [0.03%]
种族和族裔群体在普通人群中肥胖对心电图波形的影响
Jordan Perry,Parham Samimisedeh,Richard Kazibwe et al.
Jordan Perry et al.
Background and purpose: Obesity is associated with distinct ECG manifestations due to altered body fat distribution, which may vary by race/ethnicity. However, few studies have evaluated these differences. ...
P-wave abnormalities in PRKAG2 cardiomyopathy: Expanding the electrocardiographic spectrum beyond preexcitation and hypertrophy [0.03%]
PRKAG2心肌病P波异常：从预激和肥大电图谱向更广泛方面发展的研究
Zhong-Qun Zhan,Xin-Yi Yu,Yang Li
Zhong-Qun Zhan
PRKAG2 cardiomyopathy exhibits distinctive P-wave abnormalities-including notching, axis deviation, inter-atrial block, and enlarged P-wave terminal force in lead V1 (PTFV1)-that reflect underlying atrial involvement. These atrial electroca...
An unusual cause of a common response. What is the mechanism of initiation of pacemaker mediated tachycardia? [0.03%]
罕见病因的常见反应。起搏器介导心动过速的启动机制是什么？
Anand Manickavasagam,Sirish Chandra Srinath Patloori,Kulkarni Yogesh Jagannath et al.
Anand Manickavasagam et al.
40-year-old gentleman who underwent permanent pacemaker implantation for intermittent complete heart block had episodes of pacemaker mediated tachycardia on device logs. The cause for endless loop tachycardia was unique in this case. The me...
Early repolarization pattern in patients with malignant coronary artery anomalies [0.03%]
冠状动脉畸形患者的早期复极模式
Ezgi Gültekin Güner,Ahmet Güner,Önder Turna et al.
Ezgi Gültekin Güner et al.
Background: Potentially malignant coronary artery anomalies (CAAs) are single coronary artery, myocardial bridges with deep course, ALCAPA, large or multiple fistulas, and anomalous coronary artery from the opposite sinus...
Prevalence and clinical significance of T-wave inversion on electrocardiogram in patients with exercise-induced laryngeal obstruction (EILO): A cross-sectional study [0.03%]
运动诱发性喉阻塞(EILO)患者心电图T波倒置的患病率及其临床意义：一项横断面研究
Sahrai Saeed,Petter Carlsen,Praveen Muralitharan et al.
Sahrai Saeed et al.
Aims: We aimed to systematically evaluate standard 12‑lead electrocardiograms (ECG) in young individuals with exercise-induced laryngeal obstruction (EILO), with a special focus on the prevalence and clinical significanc...
ECG puzzle: Persistent narrow-QRS tachycardia in a 62-year-old woman [0.03%]
心电图解析：62岁女性窄QRS波群心动过速持续存在
Sofia Andraz,Joana Massa Pereira,Lucas Hamann et al.
Sofia Andraz et al.
We report a 62-year-old woman with a long history of palpitations who presented with fatigue and acute dyspnea. ECG demonstrated a regular narrow-QRS tachycardia with long RP' intervals and 1:1 atrioventricular conduction. Episodes were rec...
Kiwook Kim,Jiae Hong,Ji Han Lee et al.
Kiwook Kim et al.
A 62-year-old man presented with severe chest pain and hypotension. The ECG demonstrated deep ST-depression in leads V3-V5, fused with QRS complex and T wave, resembling an inverted "shark fin" pattern. We discuss the clinical significance ...
Aslanger's and de Winter's patterns associated with acute left coronary artery disease: A case report of two patients [0.03%]
急性左冠状动脉疾病相关的阿斯综合征和德韦克氏症状谱系的2例报道
Mei Liu,Lingdi Liang,Tiantian Zhang et al.
Mei Liu et al.
Current guidelines classify acute coronary syndrome (ACS) into unstable angina (UA), ST-segment elevation myocardial infarction (STEMI), and non-ST-segment elevation myocardial infarction (NSTEMI). However, this classification pattern may l...