Sunday, August 28, 2016

Ventricular Tachycardia - Patient Information

Ventricular tachycardia (VT) is a type of cardiac arrhythmia or heart rhythm disorder. VT causes abnormally fast beating of heart.

Symptoms: 

  • Feeling of palpitation inside chest
  • Lightheadedness
  • Dizziness
  • Loss of consciousness
  • even sudden death
Conditions increasing the risk of VT

  • Any previous history of Myocardial infarction (Heart attack), Coronary artery disease
  • Reduced pumping function of heart (reduced ejection fraction)
  • Many Congenital heart diseases (with or without surgery)
  • Cardiomyopathies (Diseases of heart muscles)
  • Some electrical diseases of heart like Long QT syndrome, Brugada syndrome. These diseases usually have family history of sudden cardiac death.
Diagnosis:
(By W.G. de Voogt, MD, PhD, SLAZ, The Netherlands - W.G. de Voogt, MD, PhD, SLAZ, The Netherlands, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=24366354)
  • ECG - ECG gives the diagnosis of VT. (shown above)
  • In some cases where ECG is not available, but cardiac arrhythmia is suspected, other modalities like - Holter monitoring, Event recorders, Electrophysiological study - are done.
Management:

  1. Acute management: When a patient presents to the emergency dept. with ongoing VT, electrical cardioversion (shock) is usually done. In some cases when the patient is hemodynamically stable treatment with medications can  be tried.
  2. Long term management: include
  • Medications
  • Catheter ablation of VT - It is a safe and effective method for management of VT. Catheter ablation is curative in some cases. In some cases recurrence of VT can occur, where repeat ablation can be done.
  • ICD (Implantable cardioverter defibrillator) : Is highly effective in preventing sudden death in patients with history of VT or reduced ejection capacity of heart (EF<35%).
(The materials on this blog are provided to educate the public about heart and heart diseases. The informations provided on the blog are not intended nor recommended as a substitute for professional medical advice, is for general information only, and is designed to support, not replace, the relationship that exists between you and your physician. This blog does not provide medical services or advice as part of this website and nothing contained on this blog is intended to be used for medical diagnosis or treatment. Always talk with your doctor if you have questions about your symptoms, diagnosis and treatment.)


Dr. Anupam Jena

Consultant Interventional Cardiologist and Electrophysiologist

Kalinga institute of Medical Sciences

Bhubaneswar, Odisha, India

Email: drjena@live.com