Biomaterial Database

Atrial induction of ventricular tachycardia: reentry versus triggered automaticity. 1979

D P Zipes, and P R Foster, and P J Troup, and D H Pedersen

Atrial stimulation induced a sustained ventricular tachycardia in two patients with mitral valve prolapse and in one patient who had mild hypertension without cardiac abnormalities. Exercise-induced sinus tachycardia also started the ventricular tachycardia in one patient. Evidence is presented to suggest that the mechanism of ventricular tachycardia in one patient was reentrant excitation and in another patient triggered automaticity. It is likely that the origin of the ventricular tachycardia was confined to a relatively protected small area near the posteroinferior portion of the left ventricle and was not due to macroreentry.

UI	MeSH Term	Description	Entries
D006973	Hypertension	Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.	Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D008297	Male		Males
D008945	Mitral Valve Prolapse	Abnormal protrusion or billowing of one or both of the leaflets of MITRAL VALVE into the LEFT ATRIUM during SYSTOLE. This allows the backflow of blood into left atrium leading to MITRAL VALVE INSUFFICIENCY; SYSTOLIC MURMURS; or CARDIAC ARRHYTHMIA.	Floppy Mitral Valve,Mitral Click-Murmur Syndrome,Systolic Click-Murmur Syndrome,Click-Murmur Syndrome,Mitral Valve Prolapse Syndrome,Prolapsed Mitral Valve,Click Murmur Syndrome,Click-Murmur Syndrome, Mitral,Click-Murmur Syndrome, Systolic,Click-Murmur Syndromes,Floppy Mitral Valves,Mitral Click Murmur Syndrome,Mitral Valve Prolapses,Mitral Valve, Floppy,Mitral Valve, Prolapsed,Mitral Valves, Floppy,Mitral Valves, Prolapsed,Prolapse, Mitral Valve,Prolapsed Mitral Valves,Prolapses, Mitral Valve,Syndrome, Click-Murmur,Syndrome, Mitral Click-Murmur,Syndrome, Systolic Click-Murmur,Syndromes, Click-Murmur,Systolic Click Murmur Syndrome,Valve Prolapse, Mitral,Valve Prolapses, Mitral,Valve, Prolapsed Mitral,Valves, Prolapsed Mitral
D002304	Cardiac Pacing, Artificial	Regulation of the rate of contraction of the heart muscles by an artificial pacemaker.	Pacing, Cardiac, Artificial,Artificial Cardiac Pacing,Artificial Cardiac Pacings,Cardiac Pacings, Artificial,Pacing, Artificial Cardiac,Pacings, 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
D005260	Female		Females
D006325	Heart Atria	The chambers of the heart, to which the BLOOD returns from the circulation.	Heart Atrium,Left Atrium,Right Atrium,Atria, Heart,Atrium, Heart,Atrium, Left,Atrium, Right
D006329	Heart Conduction System	An impulse-conducting system composed of modified cardiac muscle, having the power of spontaneous rhythmicity and conduction more highly developed than the rest of the heart.	Conduction System, Heart,Conduction Systems, Heart,Heart Conduction Systems,System, Heart Conduction,Systems, Heart Conduction
D006339	Heart Rate	The number of times the HEART VENTRICLES contract per unit of time, usually per minute.	Cardiac Rate,Chronotropism, Cardiac,Heart Rate Control,Heartbeat,Pulse Rate,Cardiac Chronotropy,Cardiac Chronotropism,Cardiac Rates,Chronotropy, Cardiac,Control, Heart Rate,Heart Rates,Heartbeats,Pulse Rates,Rate Control, Heart,Rate, Cardiac,Rate, Heart,Rate, Pulse
D006352	Heart Ventricles	The lower right and left chambers of the heart. The right ventricle pumps venous BLOOD into the LUNGS and the left ventricle pumps oxygenated blood into the systemic arterial circulation.	Cardiac Ventricle,Cardiac Ventricles,Heart Ventricle,Left Ventricle,Right Ventricle,Left Ventricles,Right Ventricles,Ventricle, Cardiac,Ventricle, Heart,Ventricle, Left,Ventricle, Right,Ventricles, Cardiac,Ventricles, Heart,Ventricles, Left,Ventricles, Right