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Full and complete blockade of the left and right bundle branch block

Definition of blockade of bundle branch block

The blockade bundle branch block represents some of the interference and obstacles to the normal passage of the sinus impulse by a special conducting system of the heart. Such a pulse is formed in the sinus node. It beyond its specific limits and easily enters into the system of the Atria, stimulating both Atria during the passage. This sinus impulse reaches the atrioventricular connections, undergoing particular physiological delay and then enters a small conductive system of the ventricles.

Serious violations of the normal conduction of the sinus impulse is often observed on its route throughout its length. Noted various violations, depending on the specificity level. The first type can be attributed to the threat of violation vnutriepreserdnaya conductivity, which otherwise are called the blockade of the sinus impulse to the Atria. The second infringement is atrioventricular block. The third type may be noted in complete violation of intraventricular conductivity is important.

Conducting system of the ventricles is divided into right and left legs. It should be noted that the right leg includes one wide beam. In the thickness of the muscle it is branched. Typical left bundle branch block leg is divided into anterior and posterior branches of the standard. Both legs form a special network of Purkinje fibers. Normal sinus impulse is always excites interventricular partition when the system passes testing. In the complete blockade of legs of bunch of gisa generally changes the specific path and the time of excitation of the ventricles.


Complete blockade of bundle branch block

To reveal the full blockade of the right bundle branch block it is necessary to determine the course of excitation in the ventricles. It is necessary to remind that the excitation initially cover only the interventricular septum, and then unlocked the left ventricle is involved in this process excitation. To this the left ventricle the pulse often comes in his usual way. At the same to the blocked right ventricle typical excitation often transmitted through the network of fibres from the left ventricle.

Fancy bringing in the standard blocked the right ventricle will always lead to an inevitable change of the shape of the particular typical QRS complex in right chest leads, where it will be deformed and split. If the stimulation came solely unusual way, while at the same excitation of the right ventricle will be greater.

Complete blockade of the left and right bundle branch blockmanifests itself in a certain way. The course of excitation in the ventricles initially cover only the interventricular septum. For the invariant stalk on the right is the excitement quickly reaches the right ventricle. Then, the excitation covers and blocked the left ventricle. The excitation in this case will come through the network of fibers, because of such serious violations. In the left chest leads normal internal deviations are always significantly above the norm, due to the excess width of the ventricular complex.

Incomplete blockade of bundle branch block

The main factors of threat for the development of a partial view of the blockade of the right bundle branch block are considered to be metabolic electrolytes overdose of medical drugs or various intoxications. A typical conduction of impulses throughout the system of the heart slows down, due to the development of such a blockade. With a full excitation of the right occurs.

The diagnosis of these disorders separately at the individual level, right leg always possible to install it by typing the x-ray. The changes seen in the ECG interpretation. The duration of the complex should be slightly increased. The enlarged prong into the chest leads will be visible in the transcript, and the segment will be omitted.


Treatment and prevention of blockade of bundle branch block

The main therapeutic measures in this incomplete version of the blockade are the diagnosis and treatment of the disease which was the cause of the development of such a blockade. Specific treatment presented disorders do not exist. If the patient suffers from a dangerous heart failure, hypertension or angina, it is necessary to carry out the medical therapy on the basis of the special preparations of cardiac glycosides and antiarrhythmic and antihypertensive drugs.

Congenital defects in modern terms, usually shown only surgery. If young people blockade is normal, no therapy is required. Dynamic observation and regular examination by a cardiologist will be quite enough.

With incomplete blockade of the left bundle branch block needed a pulse is always slow, since the width of the complex more than the norm. Such blockade is often diagnosed only electrocardiographically. To listen splitting colors on the top of the can auscultation. These violations contributenot only development, but also a significant progression of heart failure chronic type. The use of cardiac glycosides is contraindicated in this case, that the blockade did not turn into full.