Learn the definition, types, mechanisms, predisposing conditions, and ECG criteria for ventricular tachycardia (VT), a potentially life-threatening arrhythmia. Find out how to differentiate VT from wide complex SVT and how to manage VT clinically.
Features on ECG that help in the diagnosis of ventricular tachycardia. Atrioventricular (AV) dissociation is diagnostic of VT. Morphological criteria can be applied depending on the overall similarity of the QRS complex in lead V1 to a typical ‘left bundle branch block’ or ‘right bundle branch block’ morphology. Having differentiated between these, further criteria can be applied. As ...
Ventricular tachycardia refers to a wide QRS complex heart rhythm — that is, a QRS duration beyond 120 milliseconds — originating in the ventricles at a rate of greater than 100 beats per minute.
Learn about ECG features of Ventricular Tachycardia, including mechanisms, causes, duration, hemodynamics, and key morphology indicators.
Characteristics and Criteria of Ventricular Tachycardia (V-tach) This rhythm is occurring because there is an abnormal electrical signal in the ventricles causing the ventricles to beat at a very fast rate. Ventricular tachycardia, also called V-tach, is a rhythm that can occur for a short duration and quit or be sustained.
This article is a guide for interpreting abnormal Ventricular Tachycardia EKGs, including qualifying criteria and a sample EKG rhythnm strip. Ventricular tachycardia (VT) is a rapid heartbeat over 100 bpm that originates in the ventricles. The EKG will show three or more irregular heartbeats in a row. Ventricular tachycardia can be classified by type. Several types of VT, including Monomorphic ...
This section will cover monomorphic ventricular tachycardia (VT) and related rhythms that originate from the ventricles. Things to be included: An overview of the various terms and classification systems used to characterize ventricular tachycardias. This includes morphologic classifications (i.e., RBBB-like, LBBB-like, monomorphic, polymorphic, pleomorphic), duration-based classification (i.e ...
Ventricular tachycardia of short duration or slow rate may be asymptomatic. Sustained VT is almost always symptomatic, causing palpitations, symptoms of hemodynamic compromise, or sudden cardiac death.
Further useful reading LITFL ECG Library VT versus SVT Monomorphic VT Supraventricular tachycardia (SVT) Right ventricular outflow tract (RVOT) VT The VT Score Jastrzebski et al. The ventricular tachycardia score: a novel approach to electrocardiographic diagnosis of ventricular tachycardia. EP Europace, Volume 18, Issue 4, April 2016, Pages ...
Ventricular tachycardia (VT) is a crucial diagnosis to not miss. Especially for an ER physician. If the patient is crashing, a wide complex tachycardia gets treated like VT and the patient gets a healthy dose of electricity. Those cases are easy. What about cases where there is more time to consider other possibilities? What if you have a stable patient with a wide complex tachycardia? This ...
An example of ventricular tachycardia in Lead II. This patient's rate is about 190/min. V Tach will have the following criteria: Rate greater than 100/min, QRS duration greater than .12 sec. (120 ms), and no P wave associated with the QRS. It can be difficult to distinguish V Tach from other wide-complex tachycardias without a 12-lead ECG, but all wide-complex tachycardias should be treated as ...
Ventricular tachycardia is defined as a sequence of three or more ventricular beats. The frequency must by higher than 100 bpm, mostly it is 110-250 bpm. Ventricular tachycardias often origin around old scar tissue in the heart, e.g. after myocardial infarction. Also electrolyte disturbances and ischemia can cause ventricular tachycardias.
This electrocardiogram (ECG) shows rapid monomorphic ventricular tachycardia (VT), 280 beats/min, associated with hemodynamic collapse. The tracing was obtained from a patient with severe ischemic cardiomyopathy during an electrophysiologic study.
In this ECG, we can see the pathological Q- waves (circled in blue) in the inferior wall leads, which clearly indicate that a inferior wall infarction has occurred. Furthermore, the tachycardia does not start with a preceding (premature) P wave but with a premature QRS complex (circled in red).