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Link to original content: https://pubmed.ncbi.nlm.nih.gov/24037558
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Review
. 2013 Oct;100(11):1405-13.
doi: 10.1002/bjs.9235.

Systematic review and meta-analysis of population-based mortality from ruptured abdominal aortic aneurysm

J J Reimerink  1 , M J van der Laan, M J Koelemay, R Balm, D A Legemate
Affiliations
Review

Systematic review and meta-analysis of population-based mortality from ruptured abdominal aortic aneurysm

J J Reimerink et al. Br J Surg. 2013 Oct.

Abstract

Background: A substantial proportion of patients with a ruptured abdominal aortic aneurysm (rAAA) die outside hospital. The objective of this study was to estimate the total mortality, including prehospital deaths, of patients with rAAA.

Methods: This was a systematic review and meta-analysis following the MOOSE guidelines. The Embase, MEDLINE and Cochrane Library databases were searched. All population-based studies reporting both prehospital and in-hospital mortality in patients with rAAA were included. Studies were assessed for methodological quality and heterogeneity, and pooled estimates of mortality from rAAA were calculated using a random-effects model.

Results: From a total of 3667 studies, 24 retrospective cohort studies, published between 1977 and 2012, met the inclusion criteria. The quality of included studies varied, in particular the method of determining prehospital deaths from rAAA. The estimated pooled total mortality rate was 81 (95 per cent confidence interval 78 to 83) per cent. A decline in mortality was observed over time (P = 0·002); the pooled estimate of total mortality in high-quality studies before 1990 was 86 (83 to 89) per cent, compared with 74 (72 to 77) per cent since 1990. Some 32 (27 to 37) per cent of patients with rAAA died before reaching hospital. The in-hospital non-intervention rate was 40 (33 to 47) per cent, which also declined over the years.

Conclusion: The pooled estimate of total mortality from rAAA is very high, although it has declined over the years. Most patients die outside hospital, and there is no surgical intervention in a considerable number of those who survive to reach hospital.

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