New research published in Physical Review Letters suggests that superconducting magnets used in dark matter detection ...

Three different PR intervals are observed representing antegrade conduction over the SP (dotted line, 240 ms ... P waves are followed by narrow QRS with a long RP (240 ms), suggesting slow pathway ...

Objective To test the hypothesis that in recipients of primary prophylactic implantable cardioverter-defibrillators (ICDs), the non-planarity of ECG vector loops predicts (a) deaths despite ICD ...

Meticulous examination of QRS morphology can also help discriminate between supraventricular beats with aberrancy and ventricular beats. 3 For right bundle branch block-like QRS morphology, an ...

LV noncapture is a common cause of CRT nonresponders. Beats with biventricular pacing are showing frontal plane QRS axis in the right superior quadrant and a dominant R wave in lead V 1. If V 1 has a ...

Keep in mind that not all ECG leads will include all three waves; sometimes, you may only see R wave or RS complex. Step 3: Measuring the QRS Interval. To calculate the QRS interval, follow these ...

c) The heart rate can be estimated using the following mnemonic: 300, 150, 100, 75, 60, and 50. These numbers represent the heart rate based on the number of large squares from one QRS complex to the ...