Does timing of VT ablation affect prognosis in patients with an implantable cardioverter defibrillator?
Does timing of VT ablation affect prognosis in patients with an implantable cardioverter defibrillator?
Conclusions: Ventricular tachycardia ablation after first appropriate shock was associated with a reduced risk of the combined death or worsening heart failure hospitalization end point, lower mortality, and fewer ICD shocks.
How successful is ablation for VT?
Patients have generally been referred after failed drug therapy and ICD implantation. Ablation is initially successful, abolishing 1 or more VTs in 77% to 95% of patients (Table in the online-only Data Supplement).
What is reentrant ventricular tachycardia?
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. There develops a self-perpetuating rapid and abnormal activation.
Can Vtach have a bundle branch block?
Patients typically present with presyncope, syncope or sudden death because of VT with fast rates frequently above 200 beats per minute. The QRS morphology during VT is a typical bundle branch block pattern, usually left bundle branch block, and may be identical to that in SR.
How long does it take to recover from VT ablation?
The ablated (or destroyed) areas of tissue inside your heart may take up to eight weeks to heal. You may still have arrhythmias (irregular heartbeats) during the first few weeks after your ablation. During this time, you may need anti-arrhythmic medications or other treatment.
Why is it called reentrant tachycardia?
People with AVNRT have episodes of an irregularly fast heartbeat (more than 100 beats per minute) that often start and end suddenly. The episodes are due to an extra pathway — called a reentrant circuit — located in or near the AV node that causes the heart to beat prematurely.
What is meant by reentrant?
Definition of reentrant (Entry 2 of 2) 1 : one that reenters. 2 : one that is reentrant. 3 : an indentation in a landform.
Can a left bundle branch block cause ventricular tachycardia?
The presence of a left bundle branch block, superior axis morphology further supported a diagnosis of ventricular tachycardia originating from the apex of the right ventricle.
Is cardiac ablation major surgery?
This is major surgery. You’ll spend a day or two in intensive care, and you may be in the hospital for up to a week. At first, you’ll feel very tired and have some chest pain. You can probably go back to work in about 3 months, but it may take 6 months to get back to normal.