Early outcomes for fenestrated and chimney endografts in the treatment of pararenal aortic pathologies are not significantly different: A systematic review with pooled data analysis (Journal of Endovascular Therapy (2012) 19 (723-728))

摘要

We have re-analyzed the 30-day mortality data reported by Donas et al.4 by using more specific techniques of observational meta-analysis. In particular, the issue of zero frequencies was handled by introducing the Freeman-Tukey transformation3 that was applied to estimate all 95% CIs for both study-specific and pooled mortality rates. The study-specific mortality rates were weighted according to their standard errors, and heterogeneity was estimated by standard methods5; the statistical model was random-effect.