Ckd stadiums

CKD is the acronym for "Chronic Kidney Disease". Chronic kidney failure is now referred to in the International Guidelines as "Chronic Kidney Disease", in Germany as "chronic kidney disease" instead of the previous designation "chronic renal insufficiency" (Kuhlmann 2015). CKD is classified by:

• the cause (C = cause)
• the glomerular filtration rate (G) and
• albuminuria (A) = CGA (Kuhlmann 2015).

According to KDIGO (Kidney disease improving global outcomes), CKD is divided into the following stages:

• Stage G 1: there is renal damage with normal renal function; the GFR ml / min / 1.73 m² is ≥ 90; the procedure consists of treatment of concomitant diseases, reduction of cardiovascular risk and further progression
• Stage G 2: there is renal damage with slightly reduced eGFR; the GFR ml / min / 1.73 m² is between 60 - 89; the procedure consists - as in stage 1 - in the treatment of concomitant diseases, reduction of cardiovascular risk and further progression
• Stage G 3a: kidney damage with a moderately severe reduction of the eGFR; the GFR ml / min / 1.73 m² is between 45 - 59; in addition to the above points, the complications should be diagnosed and treated
• Stage G 3b: also in this case there is renal damage with a moderately severe reduction of the eGFR; the GFR ml / min / 1.73 m² is between 30 - 44; as under 3a, in addition to the above-mentioned points, the complications should be diagnosed and treated
• Stage G 4: there is a severe reduction in eGFR; the GFR ml / min / 1.73 m² is between 15 - 29; the patient should be prepared for renal replacement therapy
• Stage G 5: renal failure; the GFR ml / min / 1.73 m² is < 15; the treatment consists of renal replacement therapy

The above-mentioned stages are additionally supplemented by the factor albuminuria (albuminuria is an important parameter for the assessment of damage to the nephrons [Kasper 2015]):

• A 1: < 30 mg / 24 h
• A 2: 30 - 300 mg / 24 h
• A 3: > 300 mg / 24 h (Kasper 2015 / Kuhlmann 2015)

1. Herold G et al (2020) Internal medicine. Herold Publisher S 640
2. Kasper D L et al (2015) Harrison's Principles of Internal Medicine. Mc Graw Hill Education S 1811 - 1813
3. Kuhlmann U et al (2015) Nephrology: Pathophysiology - Clinic - Kidney replacement procedure. Thieme Publishing House S 383