The elderly surge the physiological _'s symptom of pathology of syndrome in advance

The elderly surge the physiological _'s symptom of pathology of syndrome in advance
It is that the room of a kind of room is conducted to surge syndrome in advance unusually, is shown as the atrium is excited to arrive earlier the ventricle in part or in whole through the bypath of room room, and exchange companion's fast arrhythmia. The anatomy foundation that defies in advance is, in the room room is conducted and organized specially, some skin bunch composed of cardiac muscle of ordinary jobses still exist, bind it between atrium and ventricle person, called the bypath of room room. It is generally acknowledged, the bypath of room room is a development obstacle but the remaining room room is connected, in the development of embryo of the hearts of people, the skin among the room rooms is connected and is separated or degenerated by the fibrous ring among the room rooms gradually. After the atrium, ventricle totally reach maturity, wish bunch is the only skin passway among the room rooms, the excitement of the atrium is played and spread to the ventricle from this. If room room fibrous development of ring bad or skin among the the intersection of room and room connect, degradate completely, may cause the unusual passway among the room rooms. Room room bypath distribute over mainly except that the intersection of room and room of about fibrous trigonometry surround area, except lie in normal the intersection of room and the intersection of room and the intersection of juncture and district but neighbouring AVN-HPS by some room the intersection of room and bypath, great majority lie in the intersection of room and the intersection of room and Left deviation, the intersection of right and free the intersection of wall and area of ring.
1.Have separated the area to take the form of a cone-shaped structure on the horizontal plane of the ring of room room before the bypath of room room ago, fill a large number of adipose tissues outside the heart under the membrane, the side of ventricle is the taper department of the right ventricle, the right auricle of heart is covered on it. It is the film portion insula that the awl is sharp, the inside is a aorta root, outside is tricuspid valve ring and some right ventricles free wall. Separate the intersection of room and the intersection of room and the intersection of ventricle and end of bypath, stop on the intersection of right ventricle and taper portion ago, membrane mark examine ventricle excited initially in get by this place record often outside the heart. Atrium end lie in two area mainly, namely room lack of mutual understanding portion near, wish bunches of position and far away from, wish Right deviation of bunch precededs in the nest area of form, calling the neighbor wishing in the bypath of room of one bunch of rooms too through the bypath of room room ago of the first position, the bypath of room room of the latter position is called the bypath of room room by separating before right.
2.It and then not crossing through room room bypath heart later, nearby room room last position for after separate by area, through the bypath of room room after the bypass in this area is, the bypass of room room taking back or taking over of separating area after lying, call left separately, through separate the intersection of room and the intersection of room and bypath behind the right.
3.The bypath of room of the right side of bypath of room of room on the right side lies in the free wall of the tricuspid valve ring, outsides former with after inside last area and after through area move by conduct. So,right side room room bypath outside before not can divide intoing with after inside.
4.The left bypath of room room lies in the free wall of the bicuspid valve ring, expand to the fibrous trigonometry of left former outside, insides back with behind area all right. The conducting of the bypath of room room: Typical conducting and is shown as that it is fast to conduct, and does not decrease progressively and conduct performance, it conducts time invariably, and no Wen's block will happen, will present " completely " Or does not " have " Conduct. Room the intersection of room and bypath conduct function depend on effective to answer issue mainly, defy syndrome take place fast arrhythmia in very close relations in advance, the intersection of room and the intersection of room and ago to conduct ability is direct and erupting the fast room nature arrhythmia (atrium is fluttered or quivered) simultaneously bypath Ventricle rate speed have something to do. Some left ventricle bypaths conduct ability bidirectionally, some only conduct ability unidirectionally. Before the person who conduct bidirectionally to conduct, can reveal ventricle defy in advance at sinus rhythm of the heart, conduct, participate in the intersection of room and the intersection of room and tachycardia of returning etc. while being reverse, the the intersection of room and the intersection of room and bypath call dominant the intersection of room and the intersection of room and bypath often. Only go against the bypath of room room which spreads ability, sinus rhythm of the heart makes the electrocardiogram and has not unusually behaved, this kind of bypath is called the invisible bypath of room room. Conduct slowly, it is conducted, is shown as that it is slowly decreasing to conduct the speed with frequency dependence to conduct that minority are not typical, the bypath of room of this kind of room is called the slow bypath of rooms of the room.
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