Key result
Higher annual operation volumes were associated with significantly lower mortality in both elective (OR 0.66; 95% CI 0.65-0.67) and ruptured (OR 0.78; 95% CI 0.73-0.82) AAA repair.
Why the study?
Does surgery at higher-volume hospitals reduce mortality in patients undergoing elective or ruptured abdominal aortic aneurysm repair compared to lower-volume hospitals?
Population
467,095 patients undergoing abdominal aortic aneurysm surgery, comprising 421,299 elective and 45,796…
Comparison
Surgery at higher-volume hospitals vs Surgery at lower-volume hospitals
Design
Meta-analysis
Authors
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Supports centralization of AAA repair to high-volume centers; strengthens volume-outcome evidence from observational meta-analysis.
Meta-Analysis (n=467,095)
Does surgery at higher-volume hospitals reduce mortality in patients undergoing elective or ruptured abdominal aortic aneurysm repair compared to lower-volume hospitals?
Odds Ratio: 0.66 (95% CI 0.65–0.67)
Higher annual hospital operation volumes are associated with significantly lower mortality for both elective and ruptured abdominal aortic aneurysm repairs, supporting the centralization of AAA surgery.
Holt et al. (2007) conducted a meta-analysis in Abdominal aortic aneurysm (AAA) (n=467,095). Higher annual operation volumes vs. Lower annual operation volumes was evaluated on Mortality in elective AAA repair (OR 0.66, 95% CI 0.65-0.67). Higher annual operation volumes were associated with significantly lower mortality in both elective (OR 0.66; 95% CI 0.65-0.67) and ruptured (OR 0.78; 95% CI 0.73-0.82) AAA repair.
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