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Rivista di Angiologia
Official Journal of the , the International Union of Phlebology and the
Indexed/Abstracted in: BIOSIS Previews, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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International Angiology 2015 February;34(1):9-15
Outcome of open versus endovascular abdominal aortic aneurysm repair in obese patients: a systemic review and meta-analysis
Saedon M. 1, 2, Mt-Isa S. 3, Saratzis A. 1, Leung E. 4, Mahmood A. 5 ✉
1 University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK;
2 Division of Metabolic and Vascular Health, University of Warwick, Coventry, UK;
3 Imperial Clinical Trials Unit, School of Public Health, Imperial College London, London, UK;
4 Department of General Surgery, Dudley Group of Hospitals Foundation Trust, Dudley, UK
AIM: Obesity is increasingly common among patients diagnosed with vascular disease. This article aims to perform systemic review and meta-analysis on 30-day postoperative mortality and complication rate between open (OAR) and endovascular (EVAR) abdominal aortic aneurysm repair in obese patients.
METHODS: A systematic search was performed using the PubMed, Embase and Cochrane databases to identify original articles on obese (BMI ≥30) patients undergoing abdominal aortic aneurysm (AAA) repair. Outcomes considered were 30-day mortality and postoperative complication rate following OAR or EVAR. Random-effects Poisson regressions were fitted for each outcome to estimate the risk ratios comparing EVAR to OAR.
RESULTS: Four studies were included in the final analyses, all of which were observational in nature. There was no evidence of publication bias as suggested by funnel plots of the outcomes. Meta-analysis showed statistically significant fewer 30-day postoperative mortality in favour of EVAR (risk ratio 0.34 [95% confidence interval 0.25, 0.48], 4 studies, 2440 patients) and early postoperative complications: myocardial infarction (0.29 [0.13, 0.64]), chest infection (0.21 [0.12, 0.38]), renal failure (0.24 [0.11, 0.51]), wound infection (0.59 [0.48, 0.74]). Risk of postoperative bowel ischemia (0.26 [0.06, 1.13]) and stroke (0.32 [0.07, 1.55]) were equivocal between EVAR and OAR.
CONCLUSION: The current study strongly suggests EVAR is superior to OAR with regards to 30-day mortality and early postoperative outcome in obese patients.