6,11–14 A junctional or nodal rhythm occurs when the QRS rate is faster than the resting P wave or sinus rate which is slowed in athletes due to increased vagal tone (figure 4). The QRS rate for ...

A normal ECG has three key parts -- a P wave, a QRS complex, and a T wave -- and together they tell us how the heart's electrical system is functioning. This little P wave is where it all starts.

Data from wave 10 that was collected in 2018 were also ... their estimated number of night shifts (NNLs) and number of QRs worked in the last 12 months. Most of the nurses in the study cohort ...

Vektor Medical, a leader in non-invasive, AI-powered arrhythmia analysis technology, today announced the publication of a groundbreaking case in Heart Rhythm Case Reports. Conducted by physicians from ...

Studies investigating QRS-complex abnormalities in association ... [91] There is little data on specific T- and/or U-wave findings associated with cocaine use. Both increased and decreased T ...

SUDDEN death in persons with artificial pacemakers is a continuing and disturbing problem. Causes include pacemaker-catheter displacement, electric-component failure, broken wires and rising ...

The first QRS complex exhibits a junctional escape rhythm (yellow star), followed by a high-grade atrioventricular block (3:1 atrioventricular conduction). Red arrows point to the P waves, occurring ...

1 Department of Cardiovascular Medicine, Ningbo No. 2 Hospital, Ningbo, Zhejiang, China 2 Cardiovascular Disease Clinical Medical Research Center of Ningbo, Ningbo, Zhejiang, China Introduction: Left ...

Table 1 broadly summarises the codes. As another example, a clearly inverted T wave in V3 might be classified as 5-2 (anterior) in the presence of a QRS complex with normal duration. The exceptions to ...