CRT Management

LBBB is more prevalent in patients with which of the following conditions?

Which of the following is correct regarding the prognosis of patients with Ventricular Dyssynchrony?

Which of the following are consistent with the hypothesis behind Cardiac Resynchronization Therapy; biventricular pacing of both right and left ventricles simultaneously result in:

To achieve cardiac resynchronization the leads are placed in which of the following:

COMPANION, the first large CRT study by Bristow et al, showed that CRT arms fared better than the pacemaker arms based on which of the following primary endpoints?

MADIT-CRT (CRT for prevention of heart failure events) study showed that prophylactic CRT-ICD compared to ICD alone would reduce the risk of death or non-fatal heart failure CHF exacerbation in patients with: (CRTd was doing better than ICD alone)

Based on the MADIT-CRT and RAFT studies, patients with which of the following underlying conditions did not respond to the RT-D therapy?

A patient has LBBB, EF of 30%, and QRS of 140ms, and has already been placed on guideline-specified doses of ACE-I’s, beta blockers, and mineralocorticoid receptor antagonists. What is the appropriate next step in management according to the Canadian CRT Guidelines?