Cardiac<unk><unk>  (CRT) with or without an implantable cardiac defibrillator (ICD) is indicated in patients who have an LVEF less than or equal to 35%, left bundle branch block (LBBB) with a QRS duration greater than or equal to 0.15 seconds, and normal sinus rhythm, for the treatment of NYHA functional Class III or ambulatory Class IV heart failure symptoms in patients whose medical<unk>  has been optimized.
Cardiac resynchronization therapy indications
Heart transplantation indications
Aortic regurgitation surgery valve selection
Mitral regurgitation surgery indications
Coronary artery bypass surgery indications
Mitral regurgitation surgery preoperative evaluation
Mitral stenosis surgery preoperative evaluation
Cardiac resynchronization therapy preoperative evaluation