Narrow QRS complexes occur regularly. This tracing suggests either atrial flutter or ventricular tachycardia. It is not atrial flutter, however. If it were, the QRS complexes occurring regularly would ...

ICDs detect tachycardias imperfectly: An ICD-detected tachycardia may represent either a tachyarrhythmia (SVT or VT) or oversensing of nonarrhythmic electrical signals. ICDs also classify tachycardias ...

Pulseless ventricular tachycardia occurs when an abnormally rapid heart rate originating in the heart’s lower chambers makes a pulse undetectable. Emergency cardiac defibrillation is usually necessary ...

Model of human heart behind illustrated ECG traces, studio shot Among the study’s findings, patients with CKD have a higher risk of life-threatening ventricular arrhythmias. Chronic kidney disease ...

A growing body of evidence suggests that both atrial fibrillation (AF) and right ventricular arrhythmia can be the result of intense exercise among highly trained athletes The risk of AF conferred by ...

There are two different rates that can be determined on an ECG. The atrial rate is indicated by the frequency of the P waves. The ventricular rate is indicated by the frequency of the QRS complexes.

Nonsustained ventricular tachycardia, a type of arrhythmia, can cause short episodes of rapid heart rate and related symptoms. It usually doesn’t affect life expectancy, but treatment can help you ...

A 67-year-old man with acute anterolateral myocardial infarction had recurrent ventricular fibrillation that required insertion of temporary pacemaker. When a permanent pacemaker was inserted stable ...

Depending on the type of irregular heartbeat (arrhythmia), medication can help slow or regulate a person’s heartbeat. Doctors will assess symptoms to decide the best medication. Medications for ...