Statins Reduce Abdominal Aortic Aneurysm Growth, Rupture, and Perioperative Mortality: A Systematic Review and Meta-Analysis

Overview

Journal J Am Heart Assoc

Specialty Cardiology & Vascular Diseases

Date 2018 Oct 30

PMID 30371297

Citations 50

Authors

Konrad Salata

Muzammil Syed

Mohamad A Hussain

Charles de Mestral

Elisa Greco

Muhammad Mamdani

Jack V Tu

Thomas L Forbes

Deepak L Bhatt

Subodh Verma

Mohammed Al-Omran

Affiliations

Soon will be listed here.

Abstract

Background There are no recognized pharmacological treatments for abdominal aortic aneurysms ( AAA ), although statins are suggested to be beneficial. We sought to summarize the literature regarding the effects of statins on human AAA growth, rupture, and 30-day mortality. Methods and Results We conducted a systematic review and meta-analysis of randomized and observational studies using the Cochrane CENTRAL database, MEDLINE , and EMBASE up to June 15, 2018. Review, abstraction, and quality assessment were conducted by 2 independent reviewers, and a third author resolved discrepancies. Pooled mean differences and odds ratios with 95% confidence intervals were calculated using random effects models. Heterogeneity was quantified using the I statistic, and publication bias was assessed using funnel plots. Our search yielded 911 articles. One case-control and 21 cohort studies involving 80 428 patients were included. The risk of bias was low to moderate. Statin use was associated with a mean AAA growth rate reduction of 0.82 mm/y (95% confidence interval 0.33, 1.32, P=0.001, I=86%). Statins were also associated with a lower rupture risk (odds ratio 0.63, 95% confidence interval 0.51, 0.78, P<0.0001, I=27%), and preoperative statin use was associated with a lower 30-day mortality following elective AAA repair (odds ratio 0.55, 95% confidence interval 0.36, 0.83, P=0.005, I=57%). Conclusions Statin therapy may be associated with reduction in AAA progression, rupture, and lower rates of perioperative mortality following elective AAA repair. These data argue for widespread statin use in AAA patients. Clinical Trial Registration URL : www.crd.york.ac.uk . Unique identifier: CRD 42017056480.

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