This is termed “pre-excitation” and results in a shortened PR interval on the ECG. The combination of WPW and atrial fibrillation can potentially be fatal, especially if AV blocking agents are ...

This tiny smart ring offers an unobtrusive way to take an electrocardiogram and monitor your heart health – without any extra ...

This is a sinus tachycardia. The P waves are negative in leads V1-V2, consistent with a left atrial abnormality or left atrial hypertrophy. The QRS complex duration (0.08 sec) and morphology are ...