38 Bilder zum Thema "right bundle branch" bei ClipDealer

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In complete left bundle branch block, the conduction of the LBB can be completely interrupted or can still be conducted, but it is delayed by at least 45ms than the RBB.
In the frontal plane lead system, when the initial vector of the QRS wave is directed downward, the positive initial QRS wave is recorded in leads II, III, and aVF.
The upper limit value of R wave amplitude in each lead of ECG is related to age, sex, body shape, etc. Here are the ECG data of Japanese adults.
In the spatial anatomy of the heart, the axis from the base of the heart to the apex of the heart is called the long axis, that is, the upper right side faces the lower left side.
The classic pathological Q wave refers to a Q wave duration more than 40ms, with an amplitude greater than 25% R wave amplitude, commonly seen in cardiomyopathy and myocardial infarction.
The larger the left ventricular volume and the closer the distance between the left ventricular wall and the chest wall, the greater the amplitude of R wave in the left chest lead, and vice versa.
Some measured values of ECG have differences in gender, age and race, for example, the QRS wave amplitude of Chinese is different from that of Caucasians.
Under the background of sinus rhythm, if the difference of P-P interval is less than 120ms, it can be considered that the rhythm is basically regular and can not be diagnosed as sinus arrhythmia.
Septal q wave loss refers to the initial q wave loss of leads I, aVL, V5, and V6, which can be partially or completely lost.
Clockwise rotation electrocardiogram refers to the transition of the rS waveform of the chest lead to the left chest lead, with the transition lead exceeding the V4 lead.
In the 12 lead ecg, the highest R wave amplitude is commonly found in the left chest lead, while the lead with the deepest S wave amplitude is commonly found in the right chest lead.
When QRS wave is multi-component in V1 lead and notch appears in inferior lead, it is highly suggested that the subject may suffer from atrial septal defect.
Clockwise and counterclockwise rotation are common electrocardiographic phenomena, mainly used to describe the evolution of R-wave amplitude in chest leads.
In the frontal lead system, when the initial vector of the QRS wave points upward, the II, III, and aVF leads record a negative initial QRS wave, i.e., a small q wave.
When premature contractions occur, the ventricular filling time is shortened and the ventricular filling volume decreases, which can lead to a decrease in QRS wave amplitude.
Electric impulses can be conducted, but the conduction speed slows down, resulting in conduction delay and affecting the morphology of the P wave, PR interval, and QRS wave.
Due to the large mass of the left ventricle, the dominant excitation potentials of the left and right ventricles are oriented towards the left ventricle, i.e. towards the left, Inferior and posterior.
Electric impulses can be conducted, but the conduction speed slows down, resulting in conduction delay and affecting the morphology of the P wave, PR interval, and QRS wave.
Male, 23 years old, healthy. When the initial excitation potential of the ventricle deviates from a certain lead axis, a Q wave will be projected onto that lead, which is a physiological Q wave.
The transverse vectorcardiogram generates a chest leads electrocardiogram, with the maximum ventricular excitation potential oriented towards the left posterior region.
Under normal circumstances, in the chest lead electrocardiogram, the amplitude of the R wave gradually increases from lead V1 to lead V6.
The terminal excitation of the ventricle forms the final part of the S wave in lead V1, gradually returning to the isoelectric line, and forms a small S wave in lead V5.
ECG of cardiac arrhythmias. Right bundle branch block and left bundle branch block
Abnormal ECG refers to changes in depolarization waves and or repolarization waves, most of which are pathologic and few are physiological.
The initial excitation of the ventricle forms a small r wave in lead V1 and a small q wave in lead V6.
The accompanying ST-T changing in the context of wide QRS complexes.The wide QRS complex changes the order of ventricular depolarization and secondary changes in the order of repolarization.
Third degree block refers to persistent or permanent interruption of conduction, which can occur in any part of the conduction system and produce corresponding electrocardiogram changes.
Male, 13 years old, clinically diagnosed with secundum atrial septal defect. Note that the QRS wave in lead V1 of the electrocardiogram has a qR shape, indicating right ventricular hypertrophy.
Sometimes, there may be slight non-specific changes and normal variations in the electrocardiogram, which are often due to physiological reasons and have no clinical therapeutic significance.
Abnormal ECG refers to changes in depolarization waves and or repolarization waves, most of which are pathologic and few are physiological.
The high lateral lead group includes leads I and aVL, used to explore the myocardium of the high lateralwall of the left ventricle.
During normal ventricular excitation, the earliest epicardial breakthrough point is located in the paraventricular septal area, and the RV outflow tract and the base of the LV are finally excited.
The conduction system of the heart is supplied by the branches of the coronary artery. Once the blood vessels are blocked, it can cause conduction disorder. This picture is suitable for dark background. This picture is suitable for light background.
Under normal circumstances, when the initial excitation potential of the ventricle is far away from a certain lead axis, a Q wave will be projected on that lead, which is a physiological Q wave.
Electric impulses can be conducted, but the conduction speed slows down, resulting in conduction delay and affecting the morphology of the P wave, PR interval, and QRS wave.
During ventricular depolarization, a spatial QRS loop is generated, projected onto the frontal lead system, forming the frontal QRS loop, which further forms the electrocardiogram.
In the aVR lead, the QRS wave can have an initial r wave or no initial r wave, depending on whether the initial excitation is directed upwards or downwards.
ECG of cardiac arrhythmias. Right bundle branch block and left bundle branch block

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