| Meta-analysis and systematic review of the relationship between volume and outcome in abdominal aortic aneurysm surgery. | |
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MedLine Citation:
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PMID: 17380547 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: This study investigated the volume-outcome relationship for abdominal aortic aneurysm (AAA) surgery and quantified critical volume thresholds. METHODS: PubMed, EMBASE and the Cochrane library were searched for articles on the operation volume-outcome relationship in elective and ruptured AAA surgery. UK Hospital Episode Statistics data were also considered. Elective and ruptured AAA repairs were dealt with separately. The data were meta-analysed, and the odds ratios (95 per cent confidence interval) for mortality at higher- and lower-volume hospitals were compared. Volume thresholds were identified from each paper. RESULTS: The analysis included 421,299 elective and 45,796 ruptured AAA operations. Significant relationships between mortality and annual volume were noted for both groups. Overall, the weighted odds ratio was 0.66 (0.65 to 0.67) for elective repair at a threshold of 43 AAAs per annum and 0.78 (0.73 to 0.82) for ruptured aneurysm repair at a threshold of 15 AAAs per annum, both in favour of high-volume institutions. CONCLUSION: Higher annual operation volumes are associated with significantly lower mortality in both elective and ruptured AAA repair. This suggests that AAA surgery should be performed only at higher-volume centres. |
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Authors:
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P J E Holt; J D Poloniecki; D Gerrard; I M Loftus; M M Thompson |
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Publication Detail:
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Type: Journal Article; Meta-Analysis; Review |
Journal Detail:
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Title: The British journal of surgery Volume: 94 ISSN: 0007-1323 ISO Abbreviation: Br J Surg Publication Date: 2007 Apr |
Date Detail:
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Created Date: 2007-04-02 Completed Date: 2007-05-17 Revised Date: 2007-09-25 |
Medline Journal Info:
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Nlm Unique ID: 0372553 Medline TA: Br J Surg Country: England |
Other Details:
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Languages: eng Pagination: 395-403 Citation Subset: AIM; IM |
Affiliation:
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St George's Vascular Institute, St James' Wing, St George's Hospital, London, UK. peteholt@btinternet.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aortic Aneurysm, Abdominal
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complications,
mortality,
surgery* Aortic Rupture / etiology, mortality, surgery* Humans Odds Ratio Postoperative Complications / mortality* Rupture, Spontaneous Treatment Outcome Vascular Surgical Procedures / mortality, standards, statistics & numerical data* |
| Comments/Corrections | |
Comment In:
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Br J Surg. 2007 Aug;94(8):1041; author reply 1041
[PMID:
17636517
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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