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本文对100例房内传导障碍、30例风心病左房肥大和50名正常人的高倍P环(1mv=20cm)进行对比分析,提出房内传导障碍的VCG诊断标准:1.P环时限≥120ms;2.H面最大P向量值≥1.0mv;3.最大向左P向量值≥0.09mv;4.P环初始泪点密集≥30ms;5.P环蚀缺或卷曲状泪点密集。并发现房内传导障碍和左房肥大的主要鉴别点在于:1.最大向后P向量≤0.07mv;2,最大向后P向量/最大向前P向量≤2.0;3.易出现P环蚀缺和卷曲状泪点密集;4.ECGP_(tf)-v_1>-0.03mm.S(负向波不明显)。
In this paper, 100 cases of conduction disturbance in the room, 30 cases of rheumatic left atrial septal hypertrophy and 50 normal high-power P-ring (1mv = 20cm) were compared and analyzed, proposed VCG diagnostic criteria for conduction disorders in the room: 1.P ring time limit ≥ 120ms; 2. The maximum P vector value of H surface≥1.0mv; 3. The maximum leftward P vector value≥0.09mv; 4. The initial punctum of P ring≥30ms; And found that the main differentiating obstacle of room conduction and left atrium hypertrophy lies in: 1. Maximum backward P vector ≤ 0.07mv; 2. Maximum backward P vector / maximum forward P vector ≤ 2.0; Lack and curly tear points intensive; 4.ECGP_ (tf) -v_1> -0.03mm.S (negative wave is not obvious).