马海姆(Mahaim)型预激综合征,国内外均甚少报道,据我们所知国内仅报告过一例。而多途径的、且记录到向量图的则未见。1974年Mark与Basta报告一例马海姆型预激综合征的向量图,并称系首例报道。近年来由于电生理研究的深入,发现预激综合征的附加传导途径可以发生在房室环的各个部位,且常有多途径者,甚至有的附加途径 Mahaim type pre-excitation syndrome, both at home and abroad are rarely reported, as far as we know only one reported in China. The multi-channel, and recorded to the vector diagram is not seen. In 1974, Mark and Basta reported a vector map of the Mahim-based WPW syndrome, saying it was the first case report. In recent years, due to the deepening of electrophysiological studies, found that additional pre-excitation syndrome conduction pathway can occur in all parts of the AV loop, and often multiple ways, and even some additional ways