The elderly shrink _'s general knowledge before one in the room

The elderly shrink _'s general knowledge before one in the room
The elderly shrink disease to describe before one in the room
Room shrink, wish malposition get up, fight, meet more by some the intersection of ventricle and excited old person that produce ahead of time under the bunches of branch before the issue, some can not have obvious clinical symptoms, some can cause the serious consequence and be unable to ignore.
Shrink to see more the organic heart disease patient before room one of the elderly, also can be seen to the normal people without organic heart disease. Find the room shrinks and should generally make 24h dynamic electrocardiogram inspection and shrink quantitative qualitative analysis to room one before one, in order to appraise and guide the prognosis.
(1) Pathogenic factor
Sex and room shrink, can be seen on normal the elderly before the issue on the room, nervous, overtired. The room shrinks and sees more hypertension even more before one, coronary heart disease, acute myocardium infarction, myocardium disease, myocarditis, bicuspid valve prolapse, foreign digitalis or the intersection of Buddhist nun and the intersection of man and poison, low the intersection of blood and potassium,etc. Kui.
(2) Onset mechanism
May produce through many ways.
1.Due to unusual self-disciplining is excited to take shape unusually Under some condition, such as sinus being excited to reach malposition, get up fight some, because of Wei Kinski phenomenon, make this place the intersection of threshold potential and reduce and the intersection of relaxation and their except that the slope changes and causes and beats too early very much. Sick atrium, ventricle or Pu qing wild to link cell membrane to getting different penetrating the intersection of and change, make soon reacting fiber change slow the intersection of response and fiber into, relaxation issue accelerates very much automatically, strengthens, and produce and beat too early in self-disciplining.
2.Return the phenomenon - -Orbit and return or the office cooking stove is returned a little if returns the same shape of beating too early of the route unanimously; If conduct the speed while returning unanimously, beat too early and fix with time of mating when has beaten ago.
3.Shrink parallelly.
4.Touch off excited (triggered activity)s .
5.Machinery feedback theory think myocardium cell have, lead, activate the passway by one, can activate more leading a passway while increasing the capacity of left ventricle, so the intersection of cardiac dilatation person and incident room arrhythmia, room shrink back the intersection of compensation and intermittence, make the intersection of relaxation and issue lengthen, cause in pairs room shrink before the issue before the issue, the intersection of cicatrix and organization protruding pulling not formed to cause room reason of arrhythmia outwards in systolic phase behind the myocardium infarction
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