What preoperative evaluation is indicated in a patient with left bundle branch block?
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Patients with left bundle branch block (LBBB) who do not have signs or symptoms of coronary artery disease (CAD) or congestive heart failure (CHF) and who have normal functional capacity do not require extensive preoperative cardiac evaluation. (SOR C, based on expert opinion.)
Evidence-based practice 12, no. 07 (2009): 07-08