41 Bilder zum Thema "grafisches T St" bei ClipDealer

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Ventricular tachyarrhythmia includes many clinical types, some benign and some malignant. For malignant ventricular arrhythmias, patients are at risk of death.
At present, there is a younger trend in patients with acute myocardial infarction, so it is important to check the ECG for acute chest pain in young people.
The QT interval of ECG is from the beginning of QRS wave to the end of T wave, representing the total time of ventricular depolarization and repolarization.
R wave greater than S wave is judged to be positive; R smaller than S is judged to be negative; R equal to S amplitude is judged to be equipotential.
Male, 60 years old, clinically diagnosed as acute extensive anterior wall myocardial infarction. The patient died of ventricular fibrillation after admission.
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.
Coronary artery spasm causes transmural myocardial ischemia, and ST segment elevation in ECG has localization characteristics. Criminal vessels can be derived from ST segment elevation leads in ECG.
Relative bradycardia refers to a pathophysiological phenomenon in which the patient's body temperature rises, but the pulse does not increase, which is common in some infectious diseases and jaundice.
A normal electrocardiogram includes normal morphology, amplitude, and various measurements of duration and interval, normal electrical axis, and normal R wave progression.
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.
Male, 84 years old, admitted to hospital with chest pain for 1 day. ECG showed acute inferior and posterior MI and possibly right MI. The patient died of ventricular fibrillation the next day.
When sinus arrest occurs, the electrocardiogram will show a long P-P interval, which is not multiples of the basal sinus cycle, including physiological and pathological reasons.
When the rhythm of the atria originates in the lower part of the atria, the whole atria are excited from inferior to superior, producing negative P waves in the inferior leads.
Male, 84 years old, admitted to hospital with chest pain for 1 day. These ECG rhythms are the Holter monitor records of the patients after admission, and they are third degree atrioventricular block.
The 4-phase membrane potential of sinoatrial node pacing exhibits spontaneous depolarization, while the 4-phase membrane potential of ventricular myocytes remains stable.
On the conventional 12-lead ECG, under normal circumstances, there are some inherent patterns of QRS waves in different leads, which are not exactly the same.
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.
Four anatomical malformations of tetralogy of Fallot: 1 aortic straddling; 2 ventricular septal defect; 3 right ventricular hypertrophy and 4 pulmonary artery stenosis.
When emphysema occurs, the diaphragm moves downwards, pulling the right atrium, causing an increase in the longitudinal longitude of the right atrium, and an increase in the amplitude of the sinus P wave.
QRS wave is a ECG wave generated by ventricular excitation, typically in a three-phase waveform, named qRs wave. The QRS waveform of each lead is different.
When the frontal QRS axis is at +83, the R amplitude of lead aVF is the highest.The frontal QRS axis is almost perpendicular to the axis of lead .
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.
Some patients with severe sinus bradycardia have triggers that can disappear after treatment, while others are permanent and require treatment with ventricular pacemakers.
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.
QRS wave is a ECG wave generated by ventricular excitation, typically in a three-phase waveform, named qRs wave. The QRS waveform of each lead is different.
In ST segment elevation myocardial infarction, the ST-T of ECG will undergo a characteristic evolution process, and finally appear pathological Q wave, sometimes lasting for a lifetime.
In acute myocardial ischemia, the amplitude of T wave is increased first, and then the ST segment is elevated. When the end of QRS wave is deformed, there is a lack of collateral circulation.
On the electrocardiogram, the range of the myocardium is explored based on the leads, and some leads are grouped according to myocardial anatomy to form anatomically contiguous leads.
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.
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.
When the frontal QRS axis is at +57, the QRS amplitude of lead is the highest.The frontal electrical axis is almost perpendicular to aVL lead, so the algebraic sum of QRS amplitude is almost zero.
Female, 5-year-old, clinically diagnosed with dextrocardia. The characteristic of dextrocardia electrocardiogram is a gradual decrease in R-wave amplitude from leads V1 to V6.
Firstly, select point J as the reference point, and then select 60ms after point J as the measurement point to evaluate the ST segment offset morphology and amplitude.
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.
Under physiological conditions, the upward sloping ST segment depression forms a U-shaped curve, where the depressed PR segment, J point, and ST segment form a smooth parabola.
A 67-year-old man presents with heart palpitations, numbness of the lips and nausea after consuming poisonous shellfish. ECG showed sinus bradycardia.
Early repolarization is mostly a benign ECG change, specifically referring to J point and ST segment elevation equal to and greater than 1mm, and a few are malignant, with a risk of cardiac arrest.
Female, 85 years old, was admitted to the hospital after 20 minutes of sudden unconsciousness. The admission ECG indicated electrical mechanical disassociation, which is a type of cardiac arrest.
When ectopic impulses originate in the left atrium, an upright P wave will be generated in V1 and an inverted P wave in lead aVL.
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.

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