The sinus room is blocked and blocked _'s general knowledge in the room

The sinus room is blocked and blocked _'s general knowledge in the room
1.The sinus room is blocked (sinoatrial block)
The regular electrocardiogram can't copy and remember going out of the sinus room and forming the electric potential directly, so the sinus room is blocked and can't be observed for a time. Three degrees of sinuses room is difficult to block to anchor and fight and distinguish with the sinus. Only two degrees of sinuses room blocks and leaks and fights (P-QRS-T is left out) atrium and ventricle Can diagnose until hour. The sinus room is conducted and lengthened gradually, until the once sinus is excited can't spread into the atrium, the electric chart of heart is shortened gradually by PP interval now, the unexpected extension memorial phenomenon of PP interval after leaking and fighting, called the two degrees type sinus room to hinder stagnatly, it is distinguished that this should be arrhythmic with the sinus. A long intermittence appeared in sinus PP interval of the law suddenly, this long intermittence just meant the multiple of the normal sinus PP interval, this calls the sinus room of two degrees of Model 2 to block.
2.Block (intraatrial block) in the room
Have in the atrium, and the last three form rooms of bunches of the intersection of connection and the intersection of sinus and room, marry with the room room marrying, excited atrium at the same time. It connects right rooms and left rooms to be mainly the intersection of room and bunch (form, ask room of bunch prop up before being at being, also called Bachmann bunch) With the next room bunch. Block, produce rhythm of the heart to be whole seldom in the room, block and meet with incompleteness more in the room, mainly get on the room bunch and conduct the obstacle. Heart electric chart increase for the intersection of P and wave spacious now on equal 0.12s, appear split-blip, cut the intersection of mark and interval, greater than or equal to 0.04s, V1 lead unite Ptf negative value to increase, it is distinguished that it is loose that combine the clinical materials noticing and left room . Block is rare in the complete room, it is to form and introduce into and spread of blocking around skin of some atrium that it produces the reason, cause the atrium to separate. The electric chart of heart is now: Except normal sinus P wave, still can see and quiver with its irrelevant malposition P' or atrium the wave or atrium flutters the wave, have the rhythm of one's own.
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