Background
The number of cardiac implantable electronic device (CIED) recalls and advisories has increased over the past three decades, yet no consensus exists on how to best manage patients with these CIEDs partially because rates of complications from prophylactic replacement are unknown.
Objective
To establish rates of complications when recalled CIED generators are replaced prophylactically
Methods
We searched MEDLINE and Cochrane Controlled Trials Register for reports of prophylactic replacement of recalled CIED generators. Studies with < 20 subjects were excluded. We then conducted a meta-analysis of qualifying studies to determine the rates of mortality, reoperation, and combined major complications.
Results
We identified 7 citations meeting our inclusion criteria and reporting ≥1 endpoint of interest. Four were single center; three were multicenter. Six studies collected data retrospectively (n=1213) and one prospectively (n=222). Using a random effects model to combine data from all included studies, the rate of major complications was 2.5% (95% CI 1.0–4.5%). Combining data from 6 studies reporting mortality and reoperation, the rates were 0.5% (95% CI 0.1–0.9%) and 2.5% (95% CI 0.8–4.5%), respectively.
Conclusions
Prophylactic replacement of recalled CIED generators is associated with a low mortality rate but non-trivial rates of other major complications similar to those reported when CIED generators are replaced for other reasons. Thus, when considering replacing a recalled CIED generator, known risks of elective generator replacement likely apply and can be weighed against risks associated with device failure.