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Renal dialysis

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In medicine, renal dialysis is "therapy for the insufficient cleansing of the blood by the kidneys based on dialysis and including hemodialysis, peritoneal dialysis, and hemodiafiltration."[1]

Renal dialysis may be used as treatment for acute kidney injury and chronic kidney disease.

For chronic kidney disease:

  • Dialysis can be delayed until the glomerular filtration rate is 7.0 ml per minute in the absence of other indications.[2]
  • Six times a week of hemodialysis may be better than three times a week hemodialysis .[3]


About 1 in 12 patients who require temporary renal dialysis will eventually require chronic renal dialysis within 3 years.[4]

The role of dialysis in nursing home residents is not clear.[5]


  1. Anonymous (2019), Renal dialysis (English). Medical Subject Headings. U.S. National Library of Medicine.
  2. Cooper BA, Branley P, Bulfone L, Collins JF, Craig JC, Fraenkel MB et al. (2010). "A Randomized, Controlled Trial of Early versus Late Initiation of Dialysis.". N Engl J Med. DOI:10.1056/NEJMoa1000552. PMID 20581422. Research Blogging.
  3. FHN Trial Group. Chertow GM, Levin NW, Beck GJ, Depner TA, Eggers PW et al. (2010). "In-center hemodialysis six times per week versus three times per week.". N Engl J Med 363 (24): 2287-300. DOI:10.1056/NEJMoa1001593. PMID 21091062. Research Blogging.
  4. Wald R, Quinn RR, Luo J, Li P, Scales DC, Mamdani MM et al. (2009). "Chronic dialysis and death among survivors of acute kidney injury requiring dialysis.". JAMA 302 (11): 1179-85. DOI:10.1001/jama.2009.1322. PMID 19755696. Research Blogging.
  5. Kurella Tamura M, Covinsky KE, Chertow GM, Yaffe K, Landefeld CS, McCulloch CE (2009). "Functional Status of Elderly Adults before and after Initiation of Dialysis.". N Engl J Med 361 (16): 1539-47. DOI:10.1056/NEJMoa0904655. PMID 19828531. Research Blogging.