Chung Eugene H, McNeely David E, Gehi Anil K, Brickner Thomas, Evans Sharon, Pryski Edmund, Waicus Kelly, Stafford Harry, Mounsey J Paul, Schwartz Jennifer D, Huang Sihong, Pursell Irion, Ciocca Mario
Division of Cardiology, Cardiac Electrophysiology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Division of Cardiology, Cardiac Electrophysiology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
J Electrocardiol. 2014 Jan-Feb;47(1):1-6. doi: 10.1016/j.jelectrocard.2013.08.014. Epub 2013 Oct 2.
Displacement of ECG leads can result in unwarranted findings. We assessed the frequency of Brugada-type patterns in athletes when precordial leads were purposely placed upward.
Four hundred ninety-one collegiate athletes underwent two ECGs: one with standard leads, one with V1 and V2 along the 2nd intercostal space. A positive Brugada-type pattern was defined as ST elevation in V1 or V2 consistent with a Type 1, 2, or 3 pattern in the high-lead ECG. A control group was comprised of 181 outpatients.
No Type 1 patterns were seen. In 58 athletes (11.8%), a Brugada-type 2 or 3 pattern was observed. Those with Brugada-type 2 or 3 patterns were more likely male, taller, and heavier. In the control group, 18 (9.9%) had Brugada-type 2 or 3 patterns and were more likely male.
Proper lead positioning is essential to avoid unwarranted diagnosis of a Brugada-type ECG, especially in taller, heavier male athletes.
心电图导联移位可导致出现不必要的检查结果。我们评估了将胸前导联故意向上放置时，运动员中出现Brugada型心电图模式的频率。
491名大学生运动员接受了两次心电图检查：一次采用标准导联，一次将V1和V2沿第二肋间放置。高导联心电图中，Brugada型阳性模式定义为V1或V2导联ST段抬高，符合1型、2型或3型模式。对照组由181名门诊患者组成。
未观察到1型模式。58名运动员（11.8%）出现了Brugada型2或3型模式。出现Brugada型2或3型模式的运动员更可能为男性，身高更高，体重更重。在对照组中，18名（9.9%）出现了Brugada型2或3型模式，且更可能为男性。
正确的导联位置对于避免对Brugada型心电图进行不必要的诊断至关重要，尤其是对于身高更高、体重更重的男性运动员。
