Table 2.
QUAD (n=287) | Non‐QUAD (n=560) | |||
---|---|---|---|---|
n | %a | n | %a | |
Total mortality | 19 | 3.6 | 218 | 10.9 |
Cardiac mortality | 13 | 2.4 | 136 | 6.0 |
HF hospitalization | 22 | 4.4 | 104 | 5.6 |
Death from pump failure | 11 | 2.1 | 122 | 5.4 |
SCD | 2 | 0.4 | 13 | 0.6 |
HF indicates heart failure; QUAD, quadripolar left ventricular lead; SCD, sudden cardiac death.
Data are expressed in terms of annualized event rates.