无巧不成书心电图领域常见而最被熟知的心电现象莫过于文氏Ⅰ型和莫氏Ⅱ型房室阻滞。而世间之事无奇不有,又常常无独有偶,二度房室阻滞两个类型的发现也竟然如此。1899年Wenckebach描述了文氏型房室阻滞现象,但这种房室传导逐渐减长以至传导脱落现象有更早的发现者,意大利生理学家Luciani在其17年前,即1872年就在蛙心观察到这一现象,故Wenckebach最早将其称为Luciani周期,而 Coincidentally, ecstasy in the field of ECG is the most common and most well-known ECG phenomenon than type Ⅰ and type Ⅱ Mohs type atrioventricular block. The world of things odd, and often coincidental, second-degree atrioventricular block two types of findings even so. In 1899 Wenckebach described the phenomenon of Venn type atrioventricular block, but this atrioventricular conduction and gradually reduced to the conduction of shedding phenomenon found earlier, the Italian physiologist Luciani 17 years ago, in 1872 in the frog The heart observed this phenomenon, so Wenckebach first called it the Luciani cycle