6
III or IV) in those patients who remain symptomatic despite stable, optimal medical therapy (as
defined in the clinical trials section included in the Merlin PCS on-screen help) and have a left
ventricular ejection fraction less than or equal to 35% and a prolonged QRS duration
to maintain synchrony of the left and right ventricles in patients who have undergone an AV nodal
ablation for chronic (permanent) atrial fibrillation and have NYHA Class II or III heart failure
Contrai
Contrai
Contrai
Contraindications
ndications
ndications
ndications
Contraindications for use of the pulse generator system include ventricular tachyarrhythmias resulting
from transient or correctable factors such as drug toxicity, electrolyte imbalance, or acute myocardial
infarction.
Warnings and Precautions
Warnings and Precautions
Warnings and Precautions
Warnings and Precautions
Resuscitation Availability.
Do not perform device testing unless an external defibrillator and medical
personnel skilled in cardiopulmonary resuscitation (CPR) are readily available.
Lead system.
Do not use another manufacturer’s lead system without demonstrated compatibility as
undersensing cardiac activity and failure to deliver necessary therapy may result.
Avoiding shock during handling.
Disable tachyarrhythmia therapy (Enable/ Disable Tachy Therapy) or
program tachyarrhythmia therapies Off during surgical implant and explant or post-mortem procedures
as well as when disconnecting leads as the device can deliver a serious shock if you touch the
