• Kai-Michael Hahn and Frank Strutz.
• Nephrology Center, Dortmund, Germany; Kidney Center Wiesbaden Rheumatology, DKD Helios Hospital Wiesbaden, Wiesbaden, Germany.
• Dtsch Arztebl Int. 2024 Jun 28; 121 (13): 428435428-435.

BackgroundChronic renal insufficiency (CRI) is becoming more common and has an increasing impact on public health. In Germany, approximately one in ten adults has CRI. Its most serious consequence is generally not the development of end-stage renal failure, but rather the markedly increased cardiovascular risk as kidney function declines.MethodsThis review is based on the findings of a selective search in PubMed for literature about the treatment options for CRI, and on our overview of the existing guideline recommendations on diagnostic testing. .ResultsPatients with diabetes mellitus and arterial hypertension are at especially high risk of developing CRI. For these patients, some of the guidelines recommend regular testing for albuminuria and measurement of the glomerular filtration rate (GFR), though sometimes only when specific risk constellations are present. The treatment of CRI has evolved in recent years. At first, aside from general measures, only RAS inhibitors were available as a specific therapy for CRI. With the extension of the approval of SGLT-2 inhibitors to non-diabetic CRI patients, the options for treatment have become wider. Two randomized controlled trials have revealed the benefit of SGLT-2 inhibitors with respect to their primary combined endpoints: time to a specified eGFR reduction and renal/cardiovascular death (HR 0.61 [0.51; 0.72] and 0.72 [0.64; 0.82]). The potential side effects and contraindications of SGLT-2 inhibitors must be taken into account. A further treatment option for diabetics with CRI has become available with the approval of the non-steroidal mineralocorticoid receptor antagonist finerenone.ConclusionIn patients with risk factors, renal function should be regularly tested.

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