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A population study of renal function in sickle cell anemia.
A H Sklar1, H Campbell, R J Caruana
1Department of Medicine, Medical College of Georgia, Augusta.
The International Journal of Artificial Organs
|April 1, 1990
Summary
Serum creatinine levels in sickle cell anemia (SCA) patients require careful interpretation. Renal disease, including proteinuria and chronic renal insufficiency (CRI), is common and worsens with age in SCA patients.
Area of Science:
- Nephrology
- Hematology
- Sickle Cell Disease Research
Background:
- Sickle cell anemia (SCA) is a genetic blood disorder with significant renal complications.
- Understanding normal renal function parameters and age-related disease progression in SCA is crucial for patient management.
Purpose of the Study:
- To establish normal serum creatinine reference ranges in SCA patients.
- To investigate the association between age, proteinuria, and chronic renal insufficiency (CRI) in SCA.
Main Methods:
- Retrospective analysis of renal function data from 368 SCA patients.
- Evaluation of dipstick proteinuria, prevalence and severity of CRI, and serum creatinine levels.
- Correlation analysis with patient age.
Main Results:
- Proteinuria detected in 20.6% of patients; CRI in 4.6%.
- Proteinuria and CRI showed strong associations with increased age.
- Renal dysfunction severity in CRI patients was age-dependent.
- Serum creatinine levels were lower than predicted in patients without proteinuria or CRI.
Conclusions:
- Upper limits of normal serum creatinine should be viewed cautiously in SCA patients.
- Prevalence and severity of proteinuria and CRI are high in SCA and increase with age.
- Age is a significant factor in renal disease progression in sickle cell anemia.