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ECG features of ventricular tachycardia, in addition to the increased heart rate, are: A wide QRS complex (because the ectopics for the generation of the cardiac impulse originate in the ventricular myocyte and are propagated via the intermyocyte conduction, which is a delayed conduction)
Tachycardia; Other names: Tachyarrhythmia: ECG showing sinus tachycardia with a rate of about 100 beats per minute: ... Ventricular tachycardia (VT or V-tach) is a ...
Electrocardiography is the process of producing an electrocardiogram (ECG or EKG [a]), a recording of the heart's electrical activity through repeated cardiac cycles. [4] It is an electrogram of the heart which is a graph of voltage versus time of the electrical activity of the heart [ 5 ] using electrodes placed on the skin.
Tachycardia. A faster-than-normal heart rate. Bradycardia. A slower-than-normal heartbeat. Atrial fibrillation (A-fib). An irregular and often very fast heart rate. Premature ventricular ...
And every time you go around, you get a ventricular contraction, or a heartbeat! And this is what can lead to a reentrant ventricular tachycardia. Now the type of ventricular tachycardia is diagnosed via electrocardiogram, or ECG. ECG’s measure the electrical activity of the heart via electrodes that are placed on the skin.
This tissue allows the electrical impulse, which stimulates the heartbeat, to happen very rapidly. Right ventricular outflow tract tachycardia is the most common type of ventricular tachycardia in otherwise healthy individuals. This defect is due to an electrical node in the right ventricle just before the pulmonary artery.
Catecholaminergic polymorphic ventricular tachycardia (CPVT) is an inherited genetic disorder that predisposes those affected to potentially life-threatening abnormal heart rhythms or arrhythmias. The arrhythmias seen in CPVT typically occur during exercise or at times of emotional stress, and classically take the form of bidirectional ...
Still, the real predictive value of these findings is questioned. Late potentials may be found in 0-10% of normal volunteers. When used as a prognostic factor for the development of ventricular tachycardia, they have a sensitivity of 72% and a specificity of 75%, yielding a positive predictive value of 20% and a negative predictive value of 20%.