Erick Sánchez-Rodriguez, Jose Luis Morales-Velázquez, Pio Iran Coria Sandoval, Hugo Enrique Coutiño Moreno
{"title":"心电图挑战:局灶性房性心动过速模拟扑动:通过梯形图明确诊断。","authors":"Erick Sánchez-Rodriguez, Jose Luis Morales-Velázquez, Pio Iran Coria Sandoval, Hugo Enrique Coutiño Moreno","doi":"10.1016/j.ipej.2025.07.014","DOIUrl":null,"url":null,"abstract":"<p><p>We present the case of a 75-year-old man with a history of hypertension, type 2 diabetes, and concentric left ventricular hypertrophy who presented with palpitations. The initial electrocardiogram suggested atrial flutter; however, detailed analysis using a ladder diagram revealed a focal atrial tachycardia with alternating 2:1 and 3:1 conduction. Some deflections initially interpreted as flutter waves were identified as T waves, highlighting the importance of differentiating true atrial activity from ventricular repolarization. The presence of exit block further supported a focal origin. This case underscores the value of ladder diagrams in accurately interpreting complex supraventricular arrhythmias.</p>","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"ECG Challenge: Focal atrial tachycardia mimicking flutter: Diagnosis clarified by ladder diagrams.\",\"authors\":\"Erick Sánchez-Rodriguez, Jose Luis Morales-Velázquez, Pio Iran Coria Sandoval, Hugo Enrique Coutiño Moreno\",\"doi\":\"10.1016/j.ipej.2025.07.014\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>We present the case of a 75-year-old man with a history of hypertension, type 2 diabetes, and concentric left ventricular hypertrophy who presented with palpitations. The initial electrocardiogram suggested atrial flutter; however, detailed analysis using a ladder diagram revealed a focal atrial tachycardia with alternating 2:1 and 3:1 conduction. Some deflections initially interpreted as flutter waves were identified as T waves, highlighting the importance of differentiating true atrial activity from ventricular repolarization. The presence of exit block further supported a focal origin. This case underscores the value of ladder diagrams in accurately interpreting complex supraventricular arrhythmias.</p>\",\"PeriodicalId\":35900,\"journal\":{\"name\":\"Indian Pacing and Electrophysiology Journal\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-07-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Indian Pacing and Electrophysiology Journal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1016/j.ipej.2025.07.014\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Medicine\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Indian Pacing and Electrophysiology Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1016/j.ipej.2025.07.014","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Medicine","Score":null,"Total":0}
We present the case of a 75-year-old man with a history of hypertension, type 2 diabetes, and concentric left ventricular hypertrophy who presented with palpitations. The initial electrocardiogram suggested atrial flutter; however, detailed analysis using a ladder diagram revealed a focal atrial tachycardia with alternating 2:1 and 3:1 conduction. Some deflections initially interpreted as flutter waves were identified as T waves, highlighting the importance of differentiating true atrial activity from ventricular repolarization. The presence of exit block further supported a focal origin. This case underscores the value of ladder diagrams in accurately interpreting complex supraventricular arrhythmias.
期刊介绍:
Indian Pacing and Electrophysiology Journal is a peer reviewed online journal devoted to cardiac pacing and electrophysiology. Editorial Advisory Board includes eminent personalities in the field of cardiac pacing and electrophysiology from Asia, Australia, Europe and North America.