Abstract Background Vascular surgeons are treating progressively older, frailer and more medically complex patients. Care models including both surgeons and geriatricians have improved peri-operative outcomes in orthopaedics and surgical oncology. This meta-analysis investigates the impact of “vascular-geriatric” services on short-term inpatient outcomes. Methods Search strategy included PubMed, Scopus and Embase databases, conference abstracts and clinical trial registries. All study methodologies comparing outcomes before and after the introduction of a dedicated vascular-geriatrics service were eligible. Meta-analyses compared the relative risk (RR) of mortality, complications and 30-day readmission using a random-effects model. Risk of bias was assessed with the MINORS tool. Results Eight studies were identified, including one randomised trial and seven ‘before & after’ observational studies. 2074 patients were included, 1065 in the “Vascular-Geriatrics” cohort and 1009 in standard care. Care models included comprehensive geriatric assessment as part of the pre-operative review process before elective aortic surgery, inpatient geriatric liaison services and formal vascular-geriatric co-management arrangements. Source studies were of moderate to high risk of bias. A meta-analysis of five studies demonstrated vascular-geriatrics models were significantly associated with lower mortality rates than standard care (pooled 2.4% vs 4.9%) (RR 0.51, 95% CI 0.28-0.94, p=.03) (I2=0%). Vascular-Geriatrics models were also significantly associated with lower risk of infective complications (RR 0.49, 95% CI 0.36–0.66, p<.001) (I2=0%) and delirium (RR 0.58, 95% CI 0.35–0.97, p=.04) (I2=48%). There was no difference in mean length of stay (SMD -2.20, 95% CI -4.6-0.19, p=.07) (I2=86%). or 30-day readmission rates between Vascular-Geriatrics models and standard care (RR 1.10, 95% CI 0.81-1.51, p=.54) (I2=38%). Conclusion While the source data is heterogenous and of limited quality, this meta-analysis suggests that dedicated geriatric intervention may reduce adverse peri-operative outcomes in vascular patients compared to traditional care models. Further studies are needed to investigate the most effective design of geriatrician-surgeon partnership.
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