Trained athletes commonly (up to 80%) show ECG changes such as sinus bradycardia, first-degree atrioventricular ... For instance, localised prolongation of the QRS complex (>110 ms) in the leads ...

This paper proposes a new method to identify people using Electrocardiogram (ECG), particularly the QRS complex which has been proven to be stable against heart rate variability and convenient to be ...

Lu and team described the most important findings of the ECG as a wide complex tachycardia "characterized by an initial right bundle branch block (RBBB)-like pattern in the first two wide QRS ...

Sinus arrhythmia refers to heart beat when you breathe in and out. ... Respiratory and non-respiratory sinus arrhythmia appears on an ECG as the following: Heart rate is between 60 and 100 beats per ...

There is no need to move onto EKG Category 5 – QRS Criteria, because the only remaining choices are the sinus arrest and sinus exit block we have been working from.

There are clearly extra QRS complexes that are of different morphology compared to the QRS complexes with preceding p waves, ie, the sinus beats. The extra QRS complexes are broader and bigger ...

TIP A good quick preliminary screen of an ECG should involve rate, rhythm and axis – in this ECG the rate is around 75bpm, the rhythm is sinus (there are regular p waves and every p wave is followed ...

The correct diagnosis is sinus bradycardia with a sinus pause due to sinus node arrest (Figure 2). Figure 2. Courtesy of Philip J. Podrid, MD. The rhythm is regular except for one long RR interval ...

Another cause of bradycardia is sick sinus syndrome, which occurs when the SA node fails to generate the impulse needed for a heartbeat. Sick sinus syndrome can cause bradycardia, tachycardia (a ...

The prehospital ECG showed sinus bradycardia with 40 bpm as baseline rhythm. The heart axis was extremely deviated. The QRS complex was wide, lasting 370 ms and demonstrating a significant ...