Recurrent hemodynamically unstable Ventricular tachycardia
Recurrent Hemodynamically Unstable Ventricular Tachycardia
Ventricular tachycardia (VT) is a rapid heartbeat originating from one of the ventricles of the heart. It can cause serious complications in people with weakened cardiac muscle, also known as cardiomyopathy. When the rapid heartbeat occurs recurrently and is hemodynamically unstable—meaning the body cannot maintain normal blood circulation—it is known as recurrent hemodynamically unstable ventricular tachycardia (VT).
Recurrent hemodynamically unstable VT is a medical emergency that can lead to life-threatening arrhythmias (abnormal heart rhythms) and sudden cardiac death. It is a common cause of sudden cardiac arrest and is one of the most lethal types of arrhythmias. The most effective way to treat recurrent hemodynamically unstable VT is with a device called an implantable cardiac defibrillator (ICD).
Causes of Recurrent Hemodynamically Unstable VT
Recurrent hemodynamically unstable VT is caused by an abnormality of the ventricles, the lower chambers of the heart. This abnormality may be caused by a variety of conditions, such as:
- Coronary artery disease
- Congenital heart disease
- Cardiomyopathy
- Myocardial infarction (heart attack)
- Cardiac surgery
- Marfan syndrome
- Chronic kidney disease
- Electrolyte imbalances
- Alcohol abuse
Symptoms of Recurrent Hemodynamically Unstable VT
The symptoms of recurrent hemodynamically unstable VT can be difficult to identify, as they can vary from person to person. Common symptoms include:
- Chest pain
- Shortness of breath
- Weakness
- Dizziness or feeling faint
- Fainting or loss of consciousness
- Palpitations or a feeling that your heart is fluttering or racing
Diagnosis and Treatment of Recurrent Hemodynamically Unstable VT
Accurate diagnosis and treatment of recurrent hemodynamically unstable VT are important for preventing further complications. Diagnosis of VT begins with a physical examination and a discussion of the patient’s medical history. The doctor may also perform electrocardiography (ECG) or an echocardiogram to get more detailed information about the patient’s heart rhythm. Further tests may be necessary depending on the suspected underlying cause.
Treatment of recurrent hemodynamically unstable VT typically involves the implantation of a device called an implantable cardiac defibrillator (ICD). An ICD is a small device implanted just under the skin in the chest that can detect and correct dangerous heart rhythms in people with VT. An ICD can be programmed to shock the heart in dangerous rhythm disturbances, restarting the heartbeat and restoring normal circulation. Medications may also be used to control the heart rhythm or improve cardiovascular function.