不典型Brugada综合征V_1～V_3室性期前收缩ST段明显抬高的临床意义  

Clinical significance of ST segment elevation on V1～V3 during ventricular premature beats with atypical Brugada syndrome

作　　者：祁述善[1] 周胜华[1] 刘启明[1] 

机构地区：[1]长沙市中南大学湘雅二医院心内科,410011

出　　处：《心电学杂志》2005年第2期71-73,共3页Journal of Electrocardiology(China)

摘　　要：目的探讨室性期前收缩V1￣V3导联ST段明显抬高对Brugada综合征的诊断及心源性晕厥的预警意义。方法回顾分析一例两次室性心动过速及心室颤动发作前的心电图,观察V1￣V3室性期前收缩对ST段抬高的类型及程度的影响。结果两次晕厥前均有频发室性期前收缩,V1￣V3ST段均呈马鞍型明显抬高,更濒临晕厥的一次室性期前收缩的ST段抬高更明显;同导联窦性心动的ST段抬高程度无明显改变。结论V1￣V3室性期前收缩时ST段“扩增”抬高,伴有同一导联窦性心动ST段抬高如常,亦是支持Brugada综合征诊断的一种有力佐证,ST段抬高越明显,可能预示更濒临晕厥发作。Objective To evaluate significance of ST segment elevation on V1～V3 during ventricular premature beats(PVCS) in diagnosing Brugada syndrome and foreshadowing cardiac syncope. Methods Electrocardiograms recorded just before two events of ventricular tachycardia and fibrillation in one case were analyzed retrospectively. Results There were frequency PVCS with significant saddle-back ST segment elevation on V1～V3 before each syncope. Specifically, ST segment elevated much more during PVCS immediately prior to syncope attacking. However, ST segment had changed less during sinus beats in same lead. Conclusion It may support diagnosis of Brugada syndrome and foreshadow attacking of cardiac syncope that ST segment significantly enlarged elevation on V1～V3 during PVCS accompanies with ST segment elevation during sinus beats in same lead.

关 键 词：ST段明显抬高 BRUGADA综合征 临床意义 不典型 BMGADA综合征 ST段抬高 频发室性期前收缩 V1~V3导联 室性心动过速 心源性晕厥 综合征诊断 心室颤动 回顾分析 晕厥发作 心电图 发作前 窦性 

分 类 号：R541.7[医药卫生—心血管疾病] R541[医药卫生—内科学]