房结区及结希区脱节现象。
An atrionodal and nodo-Hisian gap phenomenon.
作者信息
Pop T, Fleischmann D, de Bakker J M, Effert S
出版信息
Br Heart J. 1975 Nov;37(11):1150-5. doi: 10.1136/hrt.37.11.1150.
Two cases of the gap phenomenon are presented. The first was an example of a gap between the atrium and the AV node. In the second the gap was at the nodo-Hisian junction. At a critical H1H2 interval splitting of the premature His potential occurred. A decrease of the H1H2 interval led to the disappearance of the distal H2 potential and to atrioventricular block. But at even shorter coupling intervals the H1H2 interval lengthened suddenly with resumption of the AV conduction. These observations provide further evidence that the gap phenomenon has a wider spectrum than was previously thought.
本文报告了两例裂隙现象。第一例是心房与房室结之间出现裂隙的例子。第二例中，裂隙位于结希氏交界处。在临界H1H2间期，提前出现的希氏电位发生分裂。H1H2间期缩短导致远端H2电位消失并出现房室传导阻滞。但在更短的偶联间期时，H1H2间期突然延长，房室传导恢复。这些观察结果进一步证明，裂隙现象的范围比之前认为的更广。
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