Biomaterial Database

Termination of pacemaker endless loop tachycardia by an atrial extrasystole. 2001

S S Barold

Genesee Hospital and the University of Rochester School of Medicine and Dentistry, Rochester, New York, USA. ssbarold@aol.com

This article documents the termination of a pacemaker endless loop tachycardia by a critically timed atrial extrasystole. Although predictable electrophysiologically, this mode of termination has not been previously reported. The observation is conceptually important because it provides the final link in establishing the similarity of endless loop tachycardia and spontaneous reentrant AV nodal or junctional tachycardias in terms of initiation and termination by single atrial or ventricular extrasystoles.

UI	MeSH Term	Description	Entries
D010138	Pacemaker, Artificial	A device designed to stimulate, by electric impulses, contraction of the heart muscles. It may be temporary (external) or permanent (internal or internal-external).	Cardiac Pacemaker, Artificial,Artificial Cardiac Pacemaker,Artificial Cardiac Pacemakers,Artificial Pacemaker,Artificial Pacemakers,Cardiac Pacemakers, Artificial,Pacemaker, Artificial Cardiac,Pacemakers, Artificial,Pacemakers, Artificial Cardiac
D004562	Electrocardiography	Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY.	12-Lead ECG,12-Lead EKG,12-Lead Electrocardiography,Cardiography,ECG,EKG,Electrocardiogram,Electrocardiograph,12 Lead ECG,12 Lead EKG,12 Lead Electrocardiography,12-Lead ECGs,12-Lead EKGs,12-Lead Electrocardiographies,Cardiographies,ECG, 12-Lead,EKG, 12-Lead,Electrocardiograms,Electrocardiographies, 12-Lead,Electrocardiographs,Electrocardiography, 12-Lead
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013610	Tachycardia	Abnormally rapid heartbeat, usually with a HEART RATE above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia.	Tachyarrhythmia,Tachyarrhythmias,Tachycardias
D018880	Atrial Premature Complexes	A type of cardiac arrhythmia with premature atrial contractions or beats caused by signals originating from ectopic atrial sites. The ectopic signals may or may not conduct to the HEART VENTRICLES. Atrial premature complexes are characterized by premature P waves on ECG which are different in configuration from the P waves generated by the normal pacemaker complex in the SINOATRIAL NODE.	Atrial Ectopic Beats,Extrasystole, Atrial,Premature Atrial Beats,Premature Atrial Contractions,Premature Supraventricular Beats,Atrial Premature Complex,Premature Atrial Complex,Atrial Beat, Premature,Atrial Beats, Premature,Atrial Complex, Premature,Atrial Complices, Premature,Atrial Contraction, Premature,Atrial Contractions, Premature,Atrial Ectopic Beat,Atrial Extrasystole,Atrial Extrasystoles,Atrial Premature Complices,Ectopic Beat, Atrial,Ectopic Beats, Atrial,Extrasystoles, Atrial,Premature Atrial Beat,Premature Atrial Complices,Premature Atrial Contraction,Premature Complex, Atrial,Premature Complexes, Atrial,Premature Complices, Atrial,Premature Supraventricular Beat,Supraventricular Beat, Premature,Supraventricular Beats, Premature