{"title":"完全性房室传导阻滞的迟发性复发。","authors":"Yao Zhao, Xueyan Ding, Jiang Cao, Xinmiao Huang","doi":"10.1186/s13019-025-03570-z","DOIUrl":null,"url":null,"abstract":"<p><p>A 77-year-old man was admitted for catheter ablation due to frequent premature ventricular complexes (PVCs). Activation mapping revealed that the earliest ventricular activation during the PVC was recorded on the left upper septum, where a clear His bundle electrogram was recorded during sinus rhythm. Radiofrequency ablation was performed with step-wise incremental application of the radio frequency energy. AV block was observed twice during RF ablation and disappeared within 5 s after stopping energy application each time. As he exhibited normal atrioventricular conduction, the patient was discharged home the following day. Five days after discharge, he experienced recurrent syncope, with ECG showing complete heart block. Although continuous telemetric echocardiogram monitoring revealed resolution of the complete atrioventricular block after 8 days, it recurred 5 days after. Follow-up evaluation of the pacemaker revealed persistent atrioventricular block at 3 and 6 months.</p>","PeriodicalId":15201,"journal":{"name":"Journal of Cardiothoracic Surgery","volume":"20 1","pages":"339"},"PeriodicalIF":1.5000,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12363021/pdf/","citationCount":"0","resultStr":"{\"title\":\"Delayed recurrence of complete atrioventricular block following ablation for premature ventricular complexes.\",\"authors\":\"Yao Zhao, Xueyan Ding, Jiang Cao, Xinmiao Huang\",\"doi\":\"10.1186/s13019-025-03570-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>A 77-year-old man was admitted for catheter ablation due to frequent premature ventricular complexes (PVCs). Activation mapping revealed that the earliest ventricular activation during the PVC was recorded on the left upper septum, where a clear His bundle electrogram was recorded during sinus rhythm. Radiofrequency ablation was performed with step-wise incremental application of the radio frequency energy. AV block was observed twice during RF ablation and disappeared within 5 s after stopping energy application each time. As he exhibited normal atrioventricular conduction, the patient was discharged home the following day. Five days after discharge, he experienced recurrent syncope, with ECG showing complete heart block. Although continuous telemetric echocardiogram monitoring revealed resolution of the complete atrioventricular block after 8 days, it recurred 5 days after. Follow-up evaluation of the pacemaker revealed persistent atrioventricular block at 3 and 6 months.</p>\",\"PeriodicalId\":15201,\"journal\":{\"name\":\"Journal of Cardiothoracic Surgery\",\"volume\":\"20 1\",\"pages\":\"339\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2025-08-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12363021/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Cardiothoracic Surgery\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1186/s13019-025-03570-z\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CARDIAC & CARDIOVASCULAR SYSTEMS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Cardiothoracic Surgery","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1186/s13019-025-03570-z","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CARDIAC & CARDIOVASCULAR SYSTEMS","Score":null,"Total":0}
Delayed recurrence of complete atrioventricular block following ablation for premature ventricular complexes.
A 77-year-old man was admitted for catheter ablation due to frequent premature ventricular complexes (PVCs). Activation mapping revealed that the earliest ventricular activation during the PVC was recorded on the left upper septum, where a clear His bundle electrogram was recorded during sinus rhythm. Radiofrequency ablation was performed with step-wise incremental application of the radio frequency energy. AV block was observed twice during RF ablation and disappeared within 5 s after stopping energy application each time. As he exhibited normal atrioventricular conduction, the patient was discharged home the following day. Five days after discharge, he experienced recurrent syncope, with ECG showing complete heart block. Although continuous telemetric echocardiogram monitoring revealed resolution of the complete atrioventricular block after 8 days, it recurred 5 days after. Follow-up evaluation of the pacemaker revealed persistent atrioventricular block at 3 and 6 months.
期刊介绍：
Journal of Cardiothoracic Surgery is an open access journal that encompasses all aspects of research in the field of Cardiology, and Cardiothoracic and Vascular Surgery. The journal publishes original scientific research documenting clinical and experimental advances in cardiac, vascular and thoracic surgery, and related fields.
Topics of interest include surgical techniques, survival rates, surgical complications and their outcomes; along with basic sciences, pediatric conditions, transplantations and clinical trials.
Journal of Cardiothoracic Surgery is of interest to cardiothoracic and vascular surgeons, cardiothoracic anaesthesiologists, cardiologists, chest physicians, and allied health professionals.
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