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• W2950367249 abstract "INTRODUCTION: People with end-stage kidney disease (ESKD) receiving chronic dialysis frequently undergo major surgery, but their absolute and relative risks of postoperative complications compared to non-dialysis patients are unclear. As a result, graded perioperative risk assessment and counselling remain difficult for chronic dialysis treatment for ESKD. The aim of this study was to estimate the risks of non-fatal postoperative outcomes in patients on chronic dialysis undergoing non-transplant surgery.METHODS: Two authors performed a systematic review of observational studies indexed in Embase and MEDLINE up to October 2018 that reported postoperative outcomes in chronic dialysis and non-dialysis patients undergoing major, non-transplant surgery. Risk of bias was assessed with the Newcastle-Ottawa Scale. Summary level data on study characteristics, type of surgical procedure, patient demographics and comorbidities were extracted. Outcomes recorded included myocardial infarction, stroke, surgical site infection and sepsis. Random effects meta-analysis was performed to derive summary risk estimates and meta-regression was performed to explore heterogeneity.RESULTS: The systematic review included 42 studies involving 78,805 chronic dialysis and 9,984,469 non-dialysis patients undergoing orthopaedic, vascular, cardiothoracic, general and urological procedures. Cohort selection and outcome ascertainment were of good quality but comparability was poor. Summary, unadjusted risk estimates showed that, compared with people not on dialysis, those receiving chronic dialysis experienced increased risks of postoperative myocardial infarction (OR 3.4, 95%CI 2.4-4.8, I280%), stroke (OR 2.2, 95% CI 1.6-3.2, I291%), surgical site infection (OR 2.3, 95% CI 1.7-3.1, I294%) and sepsis (OR 3.5, 95% CI 2.4-5.0, I296%), as well as longer length of hospital stay (weighted mean difference 2.1 days, 95%CI 2.00-2.02) irrespective of type of surgery. When the meta-analysis was restricted to include only those studies that adjusted for age and comorbidities, there was an attenuation of the observed risks of postoperative myocardial infarction (OR 1.7, 95% CI 1.3-2.2 I297%), stroke (OR 1.1, 95% CI 1.0-1.2, I283%), surgical site infection (OR 1.3, 95% CI 1.2-1.5, I274%) and sepsis (OR 2.4, 95% CI 2.1-2.7, I277%). Weighted univariate meta-regression showed significant inverse linear relationships between study-level mean age and the excess risks of both myocardial infarction (slope -0.06, p=0.029) and stroke (slope -0.07, p= 0.031) for people on chronic dialysis. A similar relationship was observed between study level prevalence of ischemic heart disease and excess stroke risk (slope -0.02, p = 0.001), which was maintained in multivariable meta-regression (slope -0.02, p=0.006). Meta-regression did not demonstrate a significant variation in excess stroke risk with age difference between dialysis and non-dialysis study cohorts, highlighting the inherent heightened stroke risk in patients with ESKD on dialysis. No factors were found to be significantly related to excess risks of sepsis or surgical site infections.CONCLUSIONS: People receiving chronic dialysis have substantially increased risks of non-fatal postoperative complications across all surgical disciplines. This heightened risk may in part be explained by their older age and higher comorbid illness burden." @default.
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• W2950367249 date "2019-06-01" @default.
• W2950367249 modified "2023-10-12" @default.
• W2950367249 title "FP119Postoperative non-fatal outcomes in people receiving chronic dialysis: a systematic review and meta-analysis of 42 studies and 78,805 patients" @default.
• W2950367249 doi "https://doi.org/10.1093/ndt/gfz106.fp119" @default.
• W2950367249 hasPublicationYear "2019" @default.
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