What is atrial tachycardia?
Atrial tachycardia (AT) is a type of abnormal heart rhythm, or arrhythmia. It occurs when the electrical signal that controls the heartbeat starts from an unusual location in the upper chambers (atria) and rapidly repeats, causing the atria to beat too quickly.
What causes pulseless ventricular tachycardia?
Pulseless ventricular tachycardia (VT) can result from a multitude of causes and predisposing conditions, including but not limited to, structural heart disease, electrolyte disturbances, drugs/medications, and congenital/inherited channelopathies.
What causes monomorphic ventricular tachycardia?
Monomorphic VT is most commonly seen in patients with underlying structural heart disease. There is typically a zone of slow conduction, most commonly the result of scarring or fibrillar disarray. Causes include prior infarct, any primary cardiomyopathy, surgical scar, hypertrophy, and muscle degeneration.
What is the survival rate for ventricular tachycardia?
Procedure mortality is approximately 3%, with most deaths due to failure of the procedure to control frequent, life-threatening VT.
Can ventricular tachycardia be cured?
Ventricular Tachycardia (VT) in patients without structural heart disease. Ventricular tachycardia can also occur in patients with structurally normal hearts, unrelated to any history of coronary artery disease. It can occur in both the young and the old, and can be a benign, potentially treatable and curable condition …
Can you live with tachycardia?
Most people with supraventricular tachycardia live healthy lives without restrictions or treatment. For others, lifestyle changes, medication and heart procedures may be needed to control or eliminate the rapid heartbeats and related symptoms.
Can you live with ventricular tachycardia?
Ventricular tachycardia may last for only a few seconds, or it can last for much longer. You may feel dizzy or short of breath, or have chest pain. Sometimes, ventricular tachycardia can cause your heart to stop (sudden cardiac arrest), which is a life-threatening medical emergency.
What is the most common cause of ventricular tachycardia?
Ventricular tachycardia most often occurs when the heart muscle has been damaged and scar tissue creates abnormal electrical pathways in the ventricles. Causes include: Heart attack. Cardiomyopathy or heart failure.
Does tachycardia shorten life?
Is Supraventricular Tachycardia Dangerous? In the vast majority of cases SVT is a benign condition. This means that it will not cause sudden death, damage the heart or cause a heart attack. It will not shorten life expectancy.
How does tachycardia cause death?
But if left untreated, tachycardia can disrupt normal heart function and lead to serious complications, including: Heart failure. Stroke. Sudden cardiac arrest or death.
What medications cause ventricular tachycardia?
Medications. Certain drugs can cause your heart to beat faster. Drugs that extend QT interval such as class III antiarrhythmics and levofloxacin can cause ventricular tachycardia. Other drugs such as halothane that decrease the conduction velocity may also cause your heart to beat faster.
What is the prognosis of ventricular tachycardia (VT)?
The prognosis in patients with ventricular tachycardia (VT) varies with the specific cardiac process, but it is predicted best by left ventricular function . Patients with VT may suffer heart failure and its attendant morbidity as a result of hemodynamic compromise. Nov 10 2019
What are the different types of ventricular tachycardia?
There are three main types of ventricular tachyarrhythmias: ventricular fibrillation, monomorphic ventricular tachycardia, and polymorphic ventricular tachycardia. Each one is associated with a high mortality rate. Symptoms include chest pain, palpations, hemodynamic collapse, and end-organ damage.
What is the medical definition of tachycardia?
Medical Definition of tachycardia. : relatively rapid heart action whether physiological (as after exercise) or pathological — see junctional tachycardia, paroxysmal tachycardia, sinus tachycardia, ventricular tachycardia — compare bradycardia.