<unk>  <unk>  is an evidence based device treatment for congestive heart failure. <unk>  is indicated in those patients with symptomatic congestive heart failure despite optimal medical<unk>  who have a reduced left ventricular ejection fraction(an LVEF ≤ 35%), and a wide QRS (≥ 0.12 sec).  It involves timed atrioventricular and biventricular pacing, which can improve left ventricular function, heart failure symptoms and may be associated with a reduction in mortality.
Cardiac resynchronization therapy
Dextrocardia surgery
Second degree AV block surgery
Third degree AV block surgery
Off-pump coronary artery bypass surgery
Mitral valve repair
Tricuspid regurgitation therapy
Catecholaminergic polymorphic ventricular tachycardia surgery