A combination of the Q wave, R wave and S wave, the “QRS complex” represents ventricular depolarization. This term can be confusing, as not all ECG leads contain all three of these waves; yet a “QRS complex” is said to be present regardless. For example, the normal QRS complex in ...
The QRS ComplexThe principal deflection of the electrocardiogram is the QRS complex (Figure 3.1), and alterations in the QRS waves provide information of great clinical value.doi:10.1007/978-94-011-7439-8_3FRCP James S. Fleming MDSpringer Netherlands...
Define QRS complex. QRS complex synonyms, QRS complex pronunciation, QRS complex translation, English dictionary definition of QRS complex. n. 1. A graphic record of heart muscle activity recorded by an electrocardiograph. 2. The procedure performed to p
Which of the following parts of an ECG represents the depolarization of the atria? a) The ST interval b) The P-wave c) The QRS-complex d) The T-wave e) The PR-interval What electrical event in the heart is represented by the QRS complex? Which portion of the ECG corresponds to the...
The present study suggests that myocardial ischaemia will influence the QRS complex as well as the ST segment. The mechanism behind the QRS changes observed is not clear but episodes of QRS change without ST change or chest pain, may reflect sudden depressions of left ventricular function, as ...
The short duration' of P-R and the widening of the QRS complexes are characteristic. (Date of tracing : 22-4-40.) Fig. 3.?Elect... RJ Vakil 被引量: 1发表: 1942年 wide-complex tachycardia in a patient with coronary disease—diagnosis:analysis of ecgs analysis of ecgs the differential...
Wide-complex tachycardia with a rate of 188 bpm. This patient has sudden onset of SVT with a known underlying RBBB. QRS complexes are wide (lower double arrows) and R-R intervals are regular (upper double arrows). View Full Size|
The heterogeneity of functional cardiomyocytes arises during heart development, which is essential to the complex and highly coordinated cardiac physiological function. Yet the biological and physiological identities and the origin of the specialized cardiomyocyte populations have not been fully comprehended. ...
type of sensor (e.g., QRS-complex from ECG signals). Statistical metrics are the most widely used features in many signal classification tasks. These kind of features often result in a good approximation to describe changes over time (e.g., summary statistics) across the values in the ...
respectively. Similarly to the concordance or discordance between the QRS complex and T waves in a given lead of the conventional ECG, the QRS-T angle reflects the dispersion between the directions of left ventricular depolarization and repolarization27. In a healthy heart, the angle between the ...