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Permanent link (DOI): https://doi.org/10.7939/R3PZ5209S

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Trace elements in hemodialysis patients: A systematic review Open Access

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Author or creator
Tonelli, Marcello
Wiebe, Natasha
Hemmelgarn, Brenda
Klarenbach, Scott
Field, Catherine J.
Manns, Braden
Thadhani, Ravi
Gill, John S.
Additional contributors
The Alberta Kidney Disease Network
Subject/Keyword
Atomic-Absorption-Spectrometry
Zinc Tolerance-Test
Randomized Controlled-Trial
Glutathione-Peroxidase Activities
Chronic-Renal-Failure
Long-Term Hemodialysis
Blood Lead Levels
Placebo-Controlled Trial
Serum Selenium Concentration
Dialysis Encephalopathy Syndrome
Type of item
Journal Article (Published)
Language
English
Place
Time
Description
Background Hemodialysis patients are at risk for deficiency of essential trace elements and excess of toxic trace elements, both of which can affect health. We conducted a systematic review to summarize existing literature on trace element status in hemodialysis patients. Methods All studies which reported relevant data for chronic hemodialysis patients and a healthy control population were eligible, regardless of language or publication status. We included studies which measured at least one of the following elements in whole blood, serum, or plasma: antimony, arsenic, boron, cadmium, chromium, cobalt, copper, fluorine, iodine, lead, manganese, mercury, molybdenum, nickel, selenium, tellurium, thallium, vanadium, and zinc. We calculated differences between hemodialysis patients and controls using the differences in mean trace element level, divided by the pooled standard deviation. Results We identified 128 eligible studies. Available data suggested that levels of cadmium, chromium, copper, lead, and vanadium were higher and that levels of selenium, zinc and manganese were lower in hemodialysis patients, compared with controls. Pooled standard mean differences exceeded 0.8 standard deviation units (a large difference) higher than controls for cadmium, chromium, vanadium, and lower than controls for selenium, zinc, and manganese. No studies reported data on antimony, iodine, tellurium, and thallium concentrations. Conclusion Average blood levels of biologically important trace elements were substantially different in hemodialysis patients, compared with healthy controls. Since both deficiency and excess of trace elements are potentially harmful yet amenable to therapy, the hypothesis that trace element status influences the risk of adverse clinical outcomes is worthy of investigation.
Date created
2009
DOI
doi:10.7939/R3PZ5209S
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Attribution 4.0 International
Citation for previous publication
Tonelli, M., Wiebe, N., Hemmelgarn, B., Klarenbach, S., Field, C. J., Manns, B., Thadhani, R., & Gill, J. S. (2009). Trace elements in hemodialysis patients: A systematic review. BMC Medicine, 7(25), [12 pages].  http://dx.doi.org/10.1186/1741-7015-7-25

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