Abstract：Objective To explore the advantages of vectorcardiogram(VCG) in diagnosing left anterior fascicular block(LAFB) complicating old inferior wall myocardial infarction. Methods ECG and VCG of two typical patients with LAFB complicating old inferior wall myocardial infarction were collected and analyzed. Wilson and Frank lead systems were utilized in collecting ECG and VCG, respectively. Results ECG can not lead to definitive diagnosis of LAFB. VCG showed distinctive manifestations. Frontal initial vector on VCG was located on the left or right at the bottom and then quickly turned to upper left, and the ring also developed to the upper left; the centrifugal limb ran in clockwise direction while the above afferent limb ran in counterclockwise direction. Conclusion VCG proves to be obviously superior to ECG in diagnosing LAFB complicating old inferior wall MI.
王艳彩. 心电向量图对左前分支阻滞合并陈旧性下壁心肌梗死的诊断优势[J]. 实用心电学杂志, 2017, 26(3): 203-206.
WANG Yan-Cai. The advantages of vectorcardiogram in diagnosing left anterior fascicular block complicating old inferior wall myocardial infarction. JOURNAL OF PRACTICAL ELECTROCARDIOLOGY, 2017, 26(3): 203-206.
2017, Vol. 26 
