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[Late changes in renal function after lead poisoning and chelation therapy].
N Restek-Samarzija1, B Momcilović
1Institut za medicinska istrazivanja i medicinu rada Sveucilista, Zagreb, Hrvatska.
Arhiv Za Higijenu Rada I Toksikologiju
|December 1, 1992
Summary
Untreated lead poisoning significantly reduces kidney function, indicated by creatinine clearance. Early chelation treatment with calcium-disodium-edetate (CaNa2EDTA) may prevent long-term kidney damage from lead exposure.
Area of Science:
- Nephrology
- Toxicology
- Environmental Health
Context:
- Lead poisoning can result from occupational exposure or ingestion.
- Delayed kidney function impairment is a concern in individuals with a history of lead exposure.
- Chelation therapy is used to reduce lead body burden.
Purpose:
- To assess the long-term effects of lead poisoning on glomerular filtration rate (GFR).
- To compare kidney function between treated and untreated individuals with past lead poisoning.
- To determine if chelation therapy mitigates delayed renal damage.
Summary:
- Glomerular filtration rate was measured using creatinine clearance in 22 adult males with prior lead poisoning.
- Subjects included those with occupational exposure and alcohol beverage poisoning.
- Seventeen subjects received calcium-disodium-edetate (CaNa2EDTA) treatment; five did not.
- Significantly reduced GFR was observed in untreated subjects (P < 0.01).
Impact:
- Untreated lead poisoning can cause significant, lasting kidney damage.
- Reduced GFR in untreated individuals highlights the adverse effects of unmanaged lead body burden.
- This study underscores the importance of chelation therapy in preventing chronic kidney disease after lead exposure.