30 Bilder zum Thema "ventricle electrode" bei ClipDealer

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Medical equipment for cardio-pulmonary resuscitation
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.
ultrasound machine
ultrasound machine
In ventricular septal defects, left ventricular hypertrophy, biventricular hypertrophy, or right ventricular hypertrophy ECG may be present.
Sometimes, left ventricular hypertrophy with tall T waves is easily misdiagnosed as hyperkalemia and hyperacute T waves, and ECG needs to be carefully identified in combination with clinic.
Sometimes, the amplitude of sinus P wave is extremely low, close to equipotential line, and it is easy to be misdiagnosed as junctional rhythm.
cardiogram
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.
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.
The ECG characteristics of complete interatrial block are positive and negative biphasic P waves in inferior leads, and these patients are prone to atrial arrhythmia, that is, Bayes syndrome.
Patients with ventricular septal defects have left ventricular hypertrophy in the early stage and biventricular hypertrophy in the middle and late stages.
Negative direction of QRS main wave in aVL lead
ultrasound machine
Ventricular high voltage refers to an increase in R-wave amplitude, which can be both a normal variation and an electrocardiographic indicator of ventricular hypertrophy.
Sometimes, it is necessary to place electrodes in the high intercostal space at the conventional chest lead electrode placement position, which is called a high intercostal chest lead.
A 2:1 left bundle branch block is considered when complete left bundle branch block alternates with normal QRS complexes and the PR interval is fixed.
ultrasound machine
ultrasound machine
When the long axis of the heart swings up and down and left and right, it can cause a change in the polarity of the QRS main wave in the aVL and aVF leads, namely the horizontal and vertical heart.
ultrasound machine
ultrasound machine
When the heart rotates around the anteroposterior axis, the heart can only swing up and down and left and right, which affects the ECG waveform of limb leads.
According to the relationship between the long axis of the heart and the horizontal axis of the direction, the heart shadow can be divided into three types: horizontal , oblique and vertical heart.
In frontal lead system, anatomical transposition and electrical transposition are not in good agreement, because some electrical transposition has nothing to do with anatomy.
ultrasound machine
Sometimes, ventricular preexcitation waves are negative on some leads, so do not mistake them for pathological Q waves or old myocardial infarction.
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.
The atrial foci originating from the anterior and posterior walls of the right atrium form an inverted P wave and positive and negative biphasic P wave in the V1 lead, respectively.

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