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Palamuthusingam D, Nadarajah A, Johnson DW, Pascoe EM, Hawley CM, Fahim M. Morbidity after elective surgery in patients on chronic dialysis: a systematic review and meta-analysis. BMC Nephrol 2021; 22:97. [PMID: 33736605 PMCID: PMC7977605 DOI: 10.1186/s12882-021-02279-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 02/22/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Patients on chronic dialysis are at increased risk of postoperative mortality following elective surgery compared to patients with normal kidney function, but morbidity outcomes are less often reported. This study ascertains the excess odds of postoperative cardiovascular and infection related morbidity outcomes for patients on chronic dialysis. METHODS Systematic searches were performed using MEDLINE, Embase and the Cochrane Library to identify relevant studies published from inception to January 2020. Eligible studies reported postoperative morbidity outcomes in chronic dialysis and non-dialysis patients undergoing major non-transplant surgery. Risk of bias was assessed using the Newcastle-Ottawa Scale and the certainty of evidence was summarised using GRADE. Random effects meta-analyses were performed to derive summary odds estimates. Meta-regression and sensitivity analyses were performed to explore heterogeneity. RESULTS Forty-nine studies involving 10,513,934 patients with normal kidney function and 43,092 patients receiving chronic dialysis were included. Patients on chronic dialysis had increased unadjusted odds of postoperative cardiovascular and infectious complications within each surgical discipline. However, the excess odds of cardiovascular complications was attenuated when odds ratios were adjusted for age and comorbidities; myocardial infarction (general surgery, OR 1.83 95% 1.29-2.36) and stroke (general surgery, OR 0.95, 95%CI 0.84-1.06). The excess odds of infectious complications remained substantially higher for patients on chronic dialysis, particularly sepsis (general surgery, OR 2.42, 95%CI 2.12-2.72). CONCLUSION Patients on chronic dialysis are at increased odds of both cardiovascular and infectious complications following elective surgery, with the excess odds of cardiovascular complications attributable to being on dialysis being highest among younger patients without comorbidities. However, further research is needed to better inform perioperative risk assessment.
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Affiliation(s)
- Dharmenaan Palamuthusingam
- Metro South Integrated Nephrology and Transplant Services, Logan Hospital, Armstrong Road & Loganlea Road, Meadowbrook, Queensland, 4131, Australia.
- Faculty of Medicine, University of Queensland, Armstrong Road & Loganlea Road, St Lucia, Queensland, 4072, Australia.
- School of Medicine, Griffith University, 68 University Dr, Meadowbrook, QLD, 4131, Australia.
| | - Arun Nadarajah
- Department of Surgery, Sunshine Coast University Hospital, Doherty St, Birtinya, Queensland, 4575, Australia
| | - David Wayne Johnson
- Faculty of Medicine, University of Queensland, Armstrong Road & Loganlea Road, St Lucia, Queensland, 4072, Australia
- Metro South and Integrated Nephrology and Transplant Services, Princess Alexandra Hospital, 199 Ipswich Road, Woolloongabba, Queensland, 4074, Australia
- Translational Research Institute, Brisbane, Australia
| | - Elaine Marie Pascoe
- Centre for Health Services Research, University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Carmel Marie Hawley
- Faculty of Medicine, University of Queensland, Armstrong Road & Loganlea Road, St Lucia, Queensland, 4072, Australia
- Metro South and Integrated Nephrology and Transplant Services, Princess Alexandra Hospital, 199 Ipswich Road, Woolloongabba, Queensland, 4074, Australia
- Centre for Health Services Research, University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Magid Fahim
- Metro South and Integrated Nephrology and Transplant Services, Princess Alexandra Hospital, 199 Ipswich Road, Woolloongabba, Queensland, 4074, Australia
- Centre for Health Services Research, University of Queensland, St Lucia, Queensland, 4072, Australia
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Palamuthusingam D, Nadarajah A, Pascoe EM, Craig J, Johnson DW, Hawley CM, Fahim M. Postoperative mortality in patients on chronic dialysis following elective surgery: A systematic review and meta-analysis. PLoS One 2020; 15:e0234402. [PMID: 32589638 PMCID: PMC7319352 DOI: 10.1371/journal.pone.0234402] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 05/24/2020] [Indexed: 01/11/2023] Open
Abstract
RATIONALE & OBJECTIVE The prognostic significance of dialysis-dependent end-stage kidney disease on postoperative mortality is unclear. This study aims to estimate the odds of postoperative mortality in patients receiving chronic dialysis undergoing elective surgery compared to patients with normal kidney function, and to examine the influence of comorbidities on the excess mortality risk. METHODS A systematic search of studies published up to January 2020 was conducted using MEDLINE, EMBASE and CENTRAL databases. Eligible studies reported postoperative 30-day or in-hospital mortality in chronic dialysis patients compared to patients with normal kidney function undergoing elective surgery. Two investigators independently reviewed all abstracts and performed risk of bias assessments using the Newcastle-Ottawa Scale. Quality of evidence was summarised in accordance with GRADE methodology (grading of recommendations, assessment, development and evaluation). Relative mortality risk estimates were obtained using random effects meta-analysis. Heterogeneity was explored using meta-regression. (PROSPERO CRD42017076565). RESULTS Forty-nine studies involving 41, 822 chronic dialysis and 10, 476, 321 non-dialysis patients undergoing elective surgery were included. Patients on chronic dialysis had a greatly increased postoperative mortality odds compared to patients with normal kidney function. The excess risk ranged from OR 10.8 (95%CI 7.3-15.9) following orthopaedic surgery to OR 4.0 (95%CI 3.2-4.9) after vascular surgery. Adjustment for age and comorbidity attenuated the excess odds but remained higher for patients on chronic dialysis, irrespective of surgical discipline. Meta-regression analysis demonstrated an inverse linear relationship between excess mortality risk and study-level mean age (slope -0.06; P = 0.001) and diabetes prevalence (slope -0.02; p = 0.001). CONCLUSIONS Patients on chronic dialysis have an increased odds for postoperative mortality following elective surgery across all surgical disciplines. This relationship is consistent among all studies, with the excess postoperative mortality attributable to end-stage kidney disease and chronic dialysis treatment may be lower among older patients with diabetes.
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Affiliation(s)
- Dharmenaan Palamuthusingam
- Metro South and Integrated Nephrology and Transplant Services, Logan Hospital, Meadowbrook, Queensland, Australia
- Faculty of Medicine, University of Queensland, St Lucia, Queensland, Australia
- School of Medicine, Griffith University, Mount Gravatt, Queensland, Australia
| | - Arun Nadarajah
- Department of Surgery, Sunshine Coast University Hospital, Birtinya, Queensland, Australia
| | - Elaine M. Pascoe
- Centre for Health Services Research, University of Queensland, St Lucia, Queensland, Australia
| | - Jonathan Craig
- College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia
| | - David W. Johnson
- Faculty of Medicine, University of Queensland, St Lucia, Queensland, Australia
- Metro South and Integrated Nephrology and Transplant Services, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia
| | - Carmel M. Hawley
- Faculty of Medicine, University of Queensland, St Lucia, Queensland, Australia
- Metro South and Integrated Nephrology and Transplant Services, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia
| | - Magid Fahim
- Faculty of Medicine, University of Queensland, St Lucia, Queensland, Australia
- Metro South and Integrated Nephrology and Transplant Services, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia
- Metro North Hospital and Health Service, Royal Brisbane and Women’s Hospital, Herston, Queensland, Australia
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