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The effect of regional versus general anaesthesia on post-operative delirium in elderly patients undergoing surgery for hip fracture : a systematic review
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Patel, Vanisha, Champaneria, Rita, Dretzke, Janine and Yeung, Joyce (2018) The effect of regional versus general anaesthesia on post-operative delirium in elderly patients undergoing surgery for hip fracture : a systematic review. BMJ Open, 8 . e020757. doi:10.1136/bmjopen-2017-020757 ISSN 2044-6055.
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Official URL: https://doi.org/10.1136/bmjopen-2017-020757
Abstract
Objective
Older patients with hip fractures who are undergoing surgery are at high risk of significant mortality and morbidity including post-operative delirium. It is unclear whether different types of anaesthesia may reduce the incidence of post-operative delirium. This systematic review will investigate the impact of anaesthetic technique on post-operative delirium. Other outcomes included mortality, length of stay, complications and functional outcomes.
Design
Systematic review of randomised controlled trials and non-randomised controlled studies.
Data Sources
Bibliographic databases were searched from inception to June 2018. Web of science and ZETOC databases were searched for conference proceedings. Reference lists of relevant articles were checked, and clinical trial registers were searched to identify on-going trials.
Eligibility criteria
Studies were eligible if general and regional anaesthesia were compared in patients (aged 60 and over) undergoing hip fracture surgery, reporting primary outcome of post-operative delirium and secondary outcomes of mortality, length of hospital stay, adverse events, functional outcomes, discharge location and quality of life. Exclusion criteria were anaesthetic technique or drug not considered current standard practice; patients undergoing hip fracture surgery alongside other surgery and uncontrolled studies.
Results
One hundred and four studies were included. There was no evidence to suggest that anaesthesia type influences post-operative delirium or mortality. Some studies suggested a small reduction in length of hospital stay with regional anaesthesia. There was some evidence to suggest that respiratory complications and intraoperative hypotension were more common with general anaesthesia. Heterogeneity precluded meta-analysis. All findings were described narratively and data were presented where possible in forest plots for illustrative purposes.
Conclusions
Whilst there was no evidence to suggest that anaesthesia types influences post-operative delirium, the evidence base is lacking. There is a need to ascertain the impact of type of anaesthesia on outcomes with an adequately powered, methodologically rigorous study.
| Item Type: | Journal Article | ||||||
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| Subjects: | R Medicine > RD Surgery | ||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Clinical Trials Unit Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Health Sciences Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School |
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| Library of Congress Subject Headings (LCSH): | Pelvic bones -- Surgery, Pelvic bones -- Fractures, Frail elderly -- Health aspects, Older people -- Health aspects | ||||||
| Journal or Publication Title: | BMJ Open | ||||||
| Publisher: | BMJ | ||||||
| ISSN: | 2044-6055 | ||||||
| Official Date: | 4 December 2018 | ||||||
| Dates: |
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| Volume: | 8 | ||||||
| Article Number: | e020757 | ||||||
| DOI: | 10.1136/bmjopen-2017-020757 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Reuse Statement (publisher, data, author rights): | https://bmjopen.bmj.com/ | ||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||
| Copyright Holders: | The Author(s) | ||||||
| Date of first compliant deposit: | 29 October 2018 | ||||||
| Date of first compliant Open Access: | 30 October 2018 | ||||||
| RIOXX Funder/Project Grant: |
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