The block of sinus room sums up _'s general knowledge

The block of sinus room sums up _'s general knowledge
Another name: The sinus heart rate is not normal
Department: Disease of the circulatory system
Block of sinus room (sinoatrial block, SAB, the sinus room is blocked) Mean the sinus room is formed excitedly and delayed or blocked while conducting to the atrium. SAB can also be divided into three degrees in theory. Because body surface electrocardiogram can't reveal sinus room form electric activity, therefore unable to establish the intersection of sinus and the intersection of room and diagnosis of block for a time. Third the intersection of sinus and the intersection of room and block with sinus park, fight, distinguish difficult, especially when the sinus is arrhythmic to happening. It is two type that the block of the second degree of sinuses room is divided: Don't (Mobitz) Type Wen (Wenckebach) Block, show as PP issues of person who go on shorten, until appear one under first long PP, one is shorter than twice of one among basic PP among this long PP, it is distinguished that the block of room of this kind of sinus should be arrhythmic with the sinus; Don't when 2 type blocks, one among long PP is whole multiple of one among basic PP. The sinus room can present the ease and fight rhythm of the heart (Fig. 3-3-7, Fig. 3-3-8) to lag behind to hinder to conduct . 3-3-7 Fig. the intersection of second and the intersection of Model I and the intersection of sinus and room conduct, hinder issue shorten gradually among the stagnat PP, until present long intermittence. 2 times of one among one shortest PP which is shorter than its ahead among the longest PP. Below ladder picture S sinus room form,conduct SA sinus room, A atrium, form 7th sinus of rooms excited to lay while spreading by atriuming blocking, form 6:5 the intersection of sinus and the intersection of room and the intersection of block and 3-3-8 picture the intersection of second and the intersection of Model 2 and the intersection of sinus and the intersection of room and block guard, lead, unite the third and 4th sinus P the long intermittence (2.24s) appears between the wave ,It is roughly one (1.10s) among basic sinus PP 2 time
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