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本实验研究结果表明:迷走神经不但对窦房结所支配的窦性心律有抑制作用,而且左侧迷走神经对心传导系统尚有明显的抑制作用,主要表现为希氏束电图的明显改变,其中以A-H间期的廷长最为明显(P<0.01),甚至于可以出现功能性房室传导阻滞,部分实验动物出现H波分裂现象(20例中有5例)。刺激迷走神经向中段未见明显改变。本实验研究结果可为临床实践中经常遇到的植物性神经系统功能失常伴发心律失常这一现象提供部分理论依据。
The experimental results show that: the vagus nerve not only sinoatrial node of the sinus rhythm inhibition, and the left vagus nerve conduction system has significant inhibitory effect, mainly for His significant changes in the beam electrogram, in which The most obvious was the length of the AH interval (P <0.01), and even functional AV block was observed. Some of the experimental animals showed H wave splitting phenomenon (5 of 20 cases). Vagal stimulation to the middle of no significant change. The results of this study may provide some theoretical basis for the phenomenon of autonomic nervous system dysfunction associated with arrhythmia, which is often encountered in clinical practice.