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The medical treatment that artificially performs the kidney's filtering functions — removing waste, toxins, and excess fluid from the blood when kidneys fail.
Dialysis replaces kidney filtration for patients with advanced CKD or AKI. Two main families: hemodialysis (HD — blood filtered through a dialyzer machine, typically 3x/week in-center) and peritoneal dialysis (PD — the peritoneal membrane filters using dialysate, performed at home). Dialysis addresses clearance (urea, creatinine, potassium, phosphate) and ultrafiltration (fluid removal), but does NOT replace the kidneys' endocrine functions (erythropoietin, vitamin D activation) — hence the need for ESA therapy and vitamin D analogs. In India, dialysis is the dominant renal replacement therapy, with in-center HD being most common and home modalities growing.
A medical procedure that filters waste products, excess fluids, and toxins from the blood using a dialysis machine when the kidneys can no longer perform this function adequately.
A dialysis modality that uses the patient's peritoneal membrane as a natural filter, with dialysate fluid introduced into the abdominal cavity to remove waste and excess fluid.
The final stage of chronic kidney disease (Stage 5, eGFR <15) where kidneys can no longer sustain life without dialysis or transplantation.
A dimensionless number used to quantify dialysis adequacy, where K = dialyzer clearance, t = treatment time, and V = volume of distribution of urea.
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This content is a general reference, not medical advice, a diagnosis, or a treatment plan. Do not change your diet, fluids, medicines, or dialysis plan without your nephrologist or renal dietitian. Individual recommendations depend on your labs, medications, conditions, and care plan.