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一个连接处性冲动,如能顺利地通过所有的房室传导组织,包括房室连接组织、束支、束支的周围分支和心内膜下的普顷野网,便能引起整个心脏的激动。在罕见的情况下,连接处性冲动可在房室结的近端和远端发生阻滞,仅使位于此两端之间的连接组织发生激动。于是,此冲动便不能引起心房或心室的激动,因而不能直接从心电图上显示出来。但它引起的连接组织的隐匿性激动所造成的不应期将影响下一次冲动的传导,这便是隐匿性连接处性期外收缩的特点。关于隐匿性连接处性过早搏动,国外首次报道于1947年,但至今报道并不很多。本文报道最近我们遇到的3例患者,他们在心电图上分别有连接处性过早搏动引起的不同程度的房室传导阻滞现象,其中例2和例3的情况更属特殊,至今国内文献中尚未见类似报道。
A connecting sexual urge, if passed smoothly through all atrioventricular tissue, including atrioventricular tissue, bundle branches, branch branches around the branches and subendocardial nephrology, can cause the entire heart’s excitement . In rare cases, sexual intercourse may block the proximal and distal atrioventricular nodal block, leaving only the connective tissue between the two ends of the excited. Thus, this impulse can not cause atrial or ventricular activation, and therefore can not be displayed directly from the ECG. However, the refractory period caused by the occult activation of the connective tissue will affect the conduction of the next impulse. This is the characteristic of the extra-systolic contraction of occult connective tissue. On the occult connectivity of premature beat, first reported in foreign countries in 1947, but so far not many reported. This article reports the recent three cases we encountered in patients with electrocardiogram were connected with premature beats at different levels of atrioventricular block different degrees, of which cases 2 and 3 cases are more special, since the domestic literature Have not seen similar reports yet.