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The treatment of chronic but stable coronary artery disease is based on the stages of chronic kidney disease (CKD) stages G1-2 and stages G3-G5, distinguishing between advanced kidney disease (stages G3-G5) and end-stage kidney disease (G5D) treated by dialysis. In Germany, national guidelines are followed for patients with normal kidney function in addition to the recommendations of Kidney Disease - Improving Global Outcomes (KDIGO) for CKD patients. These guidelines focus on standard of care and include treatment with aspirin, statins, beta-blockers, inhibitors of the renin-angiotensin system, and sodium glucose cotransporters for patients with cardiovascular disease. Revascularization strategies follow a more pragmatic approach for the fragile, comorbid, and aging patient population. Younger patients appear to benefit from surgical interventions. Treatment of acute events is currently administered independent of the patient's kidney function, but there is no consensus yet on the best strategy. The focus of our efforts should be, via more controlled studies, to avoid "navigating through the darkness" to reach the end of the tunnel.