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A Point-of-Care Method with Integrated Decision Support Tool to Estimate Anemia at Population Level
Published on: January 19, 2024
KDOQI US commentary on the 2012 KDIGO Clinical Practice Guideline for Anemia in CKD
Alan S Kliger1, Robert N Foley, David S Goldfarb
1Yale School of Medicine and Yale-New Haven Hospital, New Haven, CT.
Insights
The 2012 KDIGO guideline for anemia in chronic kidney disease offers recommendations, but some evidence requires qualification. This review highlights potential risks of iron therapy and transfusion, and questions hemoglobin targets.
Area of Science:
- Nephrology
- Hematology
- Clinical Practice Guidelines
Background:
- The 2012 Kidney Disease: Improving Global Outcomes (KDIGO) guideline provides evidence-based recommendations for anemia in chronic kidney disease (CKD).
- This commentary critically reviews the KDIGO guideline's recommendations and the supporting evidence.
- It addresses potential limitations and areas needing further research.
Purpose of the Study:
- To critically evaluate the 2012 KDIGO Clinical Practice Guideline for Anemia in Chronic Kidney Disease.
- To discuss the evidence underlying key recommendations, including iron therapy, hemoglobin targets, and red blood cell transfusions.
- To highlight areas where evidence is unclear or recommendations may require qualification.
Main Methods:
- Review and commentary on existing evidence.
- Analysis of recommendations from the 2012 KDIGO guideline.
- Discussion of potential risks and benefits associated with treatment strategies.
Main Results:
- Most KDIGO recommendations are well-reasoned, but some require qualification due to unclear evidence.
- Withholding intravenous iron may carry risks; the guideline's lower hemoglobin threshold (9 g/dL) might increase transfusions.
- Limited evidence supports safety risks for hemoglobin targets between 11-11.5 g/dL, and quality of life benefits from erythropoiesis-stimulating agents are poorly documented.
Conclusions:
- The KDIGO guideline offers valuable insights but necessitates careful consideration of evidence gaps, particularly regarding iron therapy and transfusion strategies.
- Further research is needed to optimize anemia management in chronic kidney disease patients, especially in end-stage renal disease.
- Specific attention is given to the guideline's recommendations for pediatric anemia management.
Abstract:
The 2012 KDIGO (Kidney Disease: Improving Global Outcomes) Clinical Practice Guideline for Anemia in Chronic Kidney Disease provides clinicians with comprehensive evidence-based recommendations to improve patient care. In this commentary, we review these recommendations and the underlying evidence. Most recommendations are well reasoned. For some, the evidence is unclear and recommendations require some qualification. While the KDIGO guideline stresses the potential risks of intravenous iron therapy, withholding iron might have its own risks. The recommendation to avoid hemoglobin levels falling below 9 g/dL sets a lower bound of "acceptability" that may increase blood transfusion. Given the lack of research supporting the optimal transfusion strategy for end-stage renal disease patients, it is difficult to weigh the risks and benefits of red blood cell transfusion. We find a paucity of evidence that hemoglobin concentration targeted between 11 and 11.5 g/dL is associated with a safety risk. Although the evidence that erythropoiesis-stimulating agent use improves patient quality of life is poor, it is possible that the instruments used to measure quality of life may not be well attuned to the needs of chronic kidney disease or dialysis patients. Our last section focuses specifically on the recommendations to treat anemia in children.
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