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. 2018 Aug 14;7(16):e008508. doi: 10.1161/JAHA.117.008508

Figure 4.

Figure 4

Subgroup analyses of outcomes according to longitudinal LV lead position. Risk of (A) cardiac mortality and (B) total mortality according to longitudinal LV lead position, expressed as hazard ratios and 95% CI (horizontal lines), is shown for various subgroups of patients who received cardiac resynchronization therapy. In the overall analysis, a LV apical lead position was associated with a hazard ratio of 0.66 (95% CI, 0.49–0.87) for cardiac mortality. CI indicates confidence interval; CRT‐D, cardiac resynchronization therapy with defibrillation; CRT‐P, cardiac resynchronization therapy with pacing; LBBB, left bundle‐branch block; LV, left ventricular; LVEF, left ventricular ejection fraction; NYHA, New York Heart Association; pts, patients.