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Fracture risk in dialysis and kidney transplanted patients: a protocol for systematic review and meta-analysis
Aboubacar Sidibé1, Lynne Moore2, Sonia Jean3
1Centre de Recherche du CHU de Québec, Hôpital Hôtel-Dieu de Québec, Division of Nephrology, Endocrinology and Nephrology Axis, Faculty and Department of Medicine, Laval University, 10 McMahon, Québec City, Québec, G1R 2J6, Canada.
Insights
Patients with chronic kidney disease (CKD) face higher fracture risks. This systematic review compares fracture risks in hemodialysis (HD), peritoneal dialysis (PD), and kidney transplantation (KT) patients to guide preventive strategies.
Area of Science:
- Nephrology
- Orthopedics
- Epidemiology
Background:
- Chronic kidney disease (CKD) significantly elevates fracture and cardiovascular mortality risks.
- Patients undergoing renal replacement therapy (hemodialysis [HD], peritoneal dialysis [PD], kidney transplantation [KT]) exhibit higher fracture incidence than the general population.
- Uncertainty exists regarding the comparative fracture risk among HD, PD, and KT patient groups.
Purpose of the Study:
- To systematically review and compare fracture risks across different renal replacement therapy modalities: HD vs. PD, HD vs. KT, and PD vs. KT.
- To assess the risk of cardiovascular mortality following a fracture in these patient groups.
- To identify patient populations with the highest fracture risk to inform preventive strategies.
Main Methods:
- A systematic review of observational studies and randomized controlled trials (RCTs) will be conducted.
- Searches will cover major databases (MEDLINE, Embase, Web of Science, Cochrane Library) and gray literature.
- Risk of bias will be assessed using ROBINS-I and Cochrane handbook tools; evidence quality will be evaluated using GRADE. Pooled relative risks will be calculated using random-effect models.
Main Results:
- This systematic review will synthesize pooled data on fracture risk in dialysis and kidney transplantation patients.
- Comparative risk data between HD, PD, and KT groups will be analyzed.
- The analysis aims to quantify fracture risk and associated cardiovascular mortality post-fracture.
Conclusions:
- The findings will provide crucial pooled data to guide the implementation of targeted preventive strategies for fracture in CKD patients undergoing RRT.
- Identifying specific RRT groups with the highest fracture risk is a key objective.
- Potential heterogeneity in observational studies may be a limitation.
Background:
Chronic kidney disease (CKD) is associated with an increased risk of fracture and cardiovascular mortality. The risk of fracture in hemodialysis (HD), peritoneal dialysis (PD), and kidney transplantation (KT) is higher when compared to the general population. However, uncertainties remain about which group has the highest risk of fracture. We aim to identify the risk of fracture and cardiovascular mortality post-fracture in HD compared to PD or KT and in PD compared to KT population.
Methods:
We will conduct a systematic review of observational studies and randomized control trials on patients with CKD. Eligible studies will be searched on MEDLINE, Embase, Web of Science, Cochrane Library, and in gray literature. Two independent reviewers will screen all identified references in order to include studies reporting the risk of fracture without a comparator or comparing that risk in HD vs KT, PD vs KT, or HD vs PD. Studies comparing the risk of fracture in a renal replacement therapy group to general population or to non-dialyzed CKD patients will also be included. Data on study settings, population characteristics, intervention, comparator, and outcomes will be extracted. Study data will be summarized and analyzed in RevMan and SAS. Risk of bias in cohort design studies will be assessed with an adapted version of the ROBINS-I tool and by the Cochrane handbook tool for RCTs. The quality of evidence and strengths of recommendations will be evaluated by the Grading of Recommendations Assessment, Development and Evaluations (GRADE) tool. We will pool relative risks with random-effect models and Mantel-Haenszel methods. Subgroup and sensitive analysis are planned according to the intervention and comparator, study design, and type of fracture.
Discussion:
This review will provide new pooled data about fracture risk in dialysis and KT patients. Our results should guide the implementation of future preventive strategies targeting patients with the highest fracture risk. A pooled analysis of observational studies could be limited by a probable considerable heterogeneity among these studies.
Systematic Review Registration:
PROSPERO CRD42016037526.
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