Sinus rhythm (a.k.a. normal sinus rhythm) refers to the normal heart beat originating from the sinoatrial node. This is manifested as an upright P wave in lead II of the ECG. Sinus bradycardia occurs ...

The diagnosis is sinus rhythm with interpolated premature ventricular complexes, in a trigeminal pattern, with retrograde concealed conduction. The rhythm is irregular, but there is a repeating ...

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EXETER, UK — Patients with supraventricular tachycardia (SVT) treated with a modified Valsalva maneuver are nearly four times more likely to return to normal sinus rhythm than individuals treated with ...

Dr. Hugh Calkins answers the question: 'What Is Atrial Fibrillation?' — -- Question: What is atrial fibrillation, how is this different from normal rhythm, and how dangerous is it? Answer :Atrial ...

IN the last decade many investigators have demonstrated that the administration of vasopressor drugs may terminate paroxysmal supraventricular and ventricular tachycardia. 1–11 However, it is only ...

TRANSIENT arrhythmias are frequently encountered during catheterization of the right side of the heart. 1 They occur most frequently during manipulation of the catheter in the atrium as isolated ...

Dear Dr. Roach: I am an active 76-year-old man. I became aware of an increase in my resting heart rate in April 2021, going from a resting rate of 48 to 74 beats per minute in a six-day period. It is ...