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Paroxysmal tachycardia is a form of tachycardia which begins and ends in an acute (or paroxysmal) manner. It is also known as Bouveret-Hoffmann syndrome. [ 1 ] [ 2 ] [ 3 ]
A 12-lead ECG showing paroxysmal supraventricular tachycardia at about 180 beats per minute. Subtypes of SVT can often be distinguished by their electrocardiogram (ECG) characteristics. Most have a narrow QRS complex, although, occasionally, electrical conduction abnormalities may produce a wide QRS complex that may mimic ventricular ...
Supraventricular tachycardias include atrial fibrillation, atrial flutter and paroxysmal supraventricular tachycardia. [3] Ventricular arrhythmias include ventricular fibrillation and ventricular tachycardia. [3] [7] Bradyarrhythmias are due to sinus node dysfunction or atrioventricular conduction disturbances. [8]
The diagnosis of TIC is made after excluding other causes of cardiomyopathy and observing resolution of the left ventricular systolic dysfunction with treatment of the tachycardia. [1] [5] [6] Specific tests that can be used in the diagnosis and monitoring of TIC include: [citation needed] electrocardiography (EKG)
Ventricular tachycardia (V-tach or VT) is a cardiovascular disorder in which fast heart rate occurs in the ventricles of the heart. [3] Although a few seconds of VT may not result in permanent problems, longer periods are dangerous; and multiple episodes over a short period of time are referred to as an electrical storm.
[2] [3] About 60% of people with the electrical problem developed symptoms, [5] which may include an abnormally fast heartbeat, palpitations, shortness of breath, lightheadedness, or syncope. [1] Rarely, cardiac arrest may occur. [1] The most common type of irregular heartbeat that occurs is known as paroxysmal supraventricular tachycardia. [1]
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 ...
Re-entry ventricular arrhythmia is a type of paroxysmal tachycardia occurring in the ventricle where the cause of the arrhythmia is due to the electric signal not completing the normal circuit, but rather an alternative circuit looping back upon itself. [1] There develops a self-perpetuating rapid and abnormal activation.