Integrated Assessment of Chronic Kidney Disease Progression: The Roles of Proteinuria, eGFR Trajectories, Cardiovascular Biomarkers, and Psychosocial Factors
Keywords:
chronic kidney disease, proteinuria, estimated glomerular filtration rate, NT-proBNP, dialysis, depression, renal pathophysiology, health-related quality of lifeAbstract
Background: Chronic kidney disease (CKD) is a heterogeneous condition in which the rate of progression, associated complications, and treatment needs vary substantially between patients. Kidney function alone may not fully capture this complexity. Proteinuria, longitudinal estimated glomerular filtration rate (eGFR), cardiovascular biomarkers, renal pathophysiology, and psychosocial well-being can provide complementary information.
Objective: To integrate findings from five supplied research articles and describe how biological, clinical, and psychosocial indicators can inform a multidimensional assessment of CKD progression.
Methods: An integrative narrative review was prepared from five user-provided articles addressing chronic renal pathophysiology, early change in proteinuria, eGFR trajectories before dialysis, N-terminal pro-B-type natriuretic peptide (NT-proBNP) and kidney function decline, and depressive symptoms in children with CKD. Study designs, populations, principal quantitative findings, and stated limitations were extracted and compared. No new patient data or independent statistical analyses were generated.
Results: The source studies indicate that CKD progression is not uniform. In a pooled individual-patient meta-analysis of 9,008 participants from 32 randomized trials, a 50% reduction in proteinuria was associated with a lower risk of the composite clinical outcome (pooled hazard ratio 0.74), although proteinuria was not established as a universally valid surrogate endpoint. Among 5,606 patients who started long-term dialysis, four distinct eGFR trajectories were identified, including persistent low function, progressive decline, accelerated decline, and catastrophic decline. In 535 patients with stable coronary artery disease but no clinical heart failure, the highest NT-proBNP quartile was associated with rapid kidney function loss and incident eGFR below 60 mL/min/1.73 m². A pediatric CKD study also linked depressive symptoms with poorer academic performance and health-related quality of life, although depressive symptoms were not associated with change in GFR.
Conclusion: CKD assessment is strengthened by combining repeated eGFR measurements with proteinuria, cardiovascular risk indicators, clinical history, and psychosocial evaluation. These measures should be interpreted together and in context; none should replace comprehensive clinical judgment.
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