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患者男,33岁。自幼年体检诊断预激综合征,曾经有阵发性心慌。12导联常规心电图显示A型与B型交替预激图形。向量图进一步证实,A型预激:额面的QRS预激向量指向左下,横面预激向量指向左前,右侧面向量指向前方;B型预激,额面的预激向量及QRS向量指向左侧,横面的预激向量指向左偏后,右侧面向量指向后侧。动态心电图记录A、B型预激1∶1交替、A型预激、B型预激三种表现形式。
Male patient, 33 years old. Since childhood medical examination Wolff-Parkinson’s syndrome, there was paroxysmal palpitation. 12 lead conventional ECG showed type A and type B alternating pre-excitation pattern. The vector diagram further confirms that the A-type pre-excitation: front QRS pre-excitation vector points to the lower left, the transverse pre-excitation vector points to the left front and the right side vectors point forward; the B-type pre-excitation, frontal excitation vector and QRS vector Left, transverse pre-excitation vector points to the left after the right side of the vector points to the back. Holter record A, B-type pre-excitation alternating 1: 1, A-type pre-excitation, B-type pre-excitation three manifestations.