So C S, Merkele F
MMW Munch Med Wochenschr. 1975 Mar 21;117(12):495-502.
The ST length and T wave were investigated electrocardiographically and clinically in 200 patients with a short PQ interval in the electrocardiogram, independent of the length and shape of the QRS complex. In group A (Lown-Ganong-Syndrome LGL), we often found a narrow, pointed, positive P wave and a narrow QRS complex in the electrocardiogram in addition to the short PQ interval, and also a tendency to respiratory arrhythmia. Clinically this was frequently a matter of young women with a tendency to paroxysmal tachycardia and autonomic dystonia. A James bundle or even a short AV conduction pathway with a small heart might be considered as the origin of this LGL syndrome. A particular classification of patients with short PQ intervals and S-T deformation (Group B) in organic heart disease has not yet been described in the literature to our knowledge. The results of our investigations in group C (WPW syndrome) correspond in the main to those given in the literature.
对200例心电图PQ间期短的患者进行了心电图和临床方面的ST段长度及T波研究，该研究与QRS波群的长度和形态无关。在A组（Lown-Ganong综合征，即LGL综合征）中，除了PQ间期短外，我们在心电图中经常发现窄而尖的正向P波和窄QRS波群，还有呼吸性心律失常的倾向。临床上，这常见于有阵发性心动过速和自主神经功能障碍倾向的年轻女性。James束甚至是伴有小心脏的短房室传导途径可能被认为是这种LGL综合征的起源。据我们所知，文献中尚未描述患有PQ间期短和S-T段改变的器质性心脏病患者（B组）的具体分类。我们在C组（预激综合征，即WPW综合征）的研究结果与文献中的主要结果相符。
