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1.旁道电生理学检查人类心脏在胎心发育过程中,房室(?)肌肉束被房室环完全分离和退化,当心脏完全发育成熟后,仅剩下一条希氏束,但也有少数人因房室环发育不良而导致在房室环中残留未退化的房室之间的传导束,即谓旁道。这一现象具有一定的遗传性。“后天性预激综合征”是因某种疾病,使房室同心肌纤维化而形成房室之间的纤维连接,或疾病使正常房室传导系统的传导阻力增加,这时,心房激动顺原先存在的旁道下达心室,形成预激。 Kent束可位于房室环的任何部位,但多位于左右房室间的游离缘,通常只存在一条Kent
1. Peripheral electrophysiology examination of the human heart during fetal heart development, atrioventricular (?) Muscle bundle was completely separated and degenerated by atrioventricular ring, when the heart fully mature, leaving only a His bundle, but there are a small number People due to dysfunction of the atrioventricular ring resulting in the atrioventricular ring left unchecked atrioventricular conduction between the bundle, the so-called bypass. This phenomenon has a certain degree of heredity. “Acquired Wolff-Parkinson’s syndrome” is due to a disease, so that atrioventricular fibrosis and the formation of atrioventricular fibrosis, or disease so that the normal atrioventricular conduction system conduction resistance increased, then the atrium excited cis The existence of the bypass next ventricle, the formation of pre-excitation. Kent beam can be located anywhere in the AV loop, but mostly in the left and right atrioventricular free edge, usually there is only one Kent