Narrow-complex tachyarrhythmias are rapid heart rhythms originating in the upper heart chambers, characterized by a QRS duration of less than 120 milliseconds on an EKG. These arrhythmias can be ...
The rhythm is regular at a rate of 42 beats/min. The first five QRS complexes are wide (0.14 seconds), with no P waves seen before or after. However, a P wave appears immediately before the fifth QRS ...
Heart rhythm disorders, also known as arrhythmias, affect millions of people worldwide. These conditions occur when the ...