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 ...

Knowing the basic parts of an ECG tracing will lay a good foundation for everything else that is to come. The different waves, complexes and intervals need to be ingrained in your brain.

Analog All ECG complexes 'Full Disclosure' Technician with computer assistance, templating, area determination and superimposition None Digital-continuous recording All ECG complexes 'Full ...

Single ventricular premature complexes (VPCs), as well as pairs and triplets of VPCs, were observed in the initial and follow-up ECG. VPCs (also called ventricular premature contractions ...

1 The majority of disorders associated with increased risk of sudden cardiac death (SCD), such as cardiomyopathies and primary electrical diseases, are suggested by abnormal findings present on an ECG ...

1a). The electrical events during the action potential, including initial firing (depolarization, corresponding to the QRS complex in the ECG) and subsequent return to the resting state ...

All digital recording systems amplify, digitize, and store the ECG in solid-state memory. Two types of digital recorders are available. In the first, each QRS complex is recorded, similar in this ...