29 Bilder zum Thema "qt interval" bei ClipDealer

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A 14-year-old leukemic child had a sudden wide QRS tachycardia with a frequency of 167 bpm, and the rhythm was regular. After anti-arrhythmia treatment, the patient recovered to sinus rhythm.
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.
A normal electrocardiogram includes normal morphology, amplitude, and various measurements of duration and interval, normal electrical axis, and normal R wave progression.
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.
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.
Torsade de pointes refers to the pleomorphic ventricular tachycardia that occurs in the background of long QT interval, and the polarity of QRS wave twists around the equipotential line.
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.
Clockwise and counterclockwise rotation are common electrocardiographic phenomena, mainly used to describe the evolution of R-wave amplitude in chest leads.
A 4-year-old boy with a clinical diagnosis of long QT syndrome. No genetic testing was done during hospitalization. The child died suddenly during follow-up.
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.
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.
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.
3D illustration of an electrocardiogram (ECG) showing prolonged QT interval with broad-based T-waves, characteristic of type 1 long QT syndrome.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.
Bidirectional ventricular tachycardia is a kind of malignant arrhythmia. The polarity of QRS main wave alternates from beat to beat, and it is easy to degenerate into ventricular fibrillation.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.
ECG of type 3 long QT syndrome, 3D illustration showing late onset T waves being preceded by a long isoelectric segment.

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