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Prophylactic chelation therapy in occupational lead poisoning: a review.

Authors
Bridbord-K; Blejer-HP
Source
Am Ind Hyg Assoc J 1977 Oct; 38(10):536-542
NIOSHTIC No.
00077058
Abstract
The primary focus of this review deals with questions of the health risk involved in therapy with calcium-disodium edta (60004) and especially the use of prophylactic chelation therapy, particularly under conditions of continued exposure to lead (7439921). Topics include effects of chelating agents on excretion of lead from the body and on blood lead levels, effects on symptoms of lead poisoning, effects upon the kidneys, increased absorption of lead from the gastrointestinal tract, t-wave changes in electrocardiograms, effects on the metabolism of other trace metals, prophylactic chelation programs, previous reviews of chelation therapy, and recent studies and related actions. A table gives a summary of the beneficial and adverse effects associated with chelation therapy in man. It is concluded that chelating agents are useful in the therapy of acute overexposure to lead. However, prophylactic use of chelating agents, particularly under conditions of continued exposure to lead can be harmful to health. Potential adverse effects include kidney damage, symptomatic lead poisoning, increased absorption of lead from the gastrointestinal tract and disruption in the metabolism of trace metals other than lead. Prophylactic chelation is an unacceptable medical practice which cannot be condoned.
Keywords
NIOSH-Author; Industrial-medicine; Occupational-medicine; Hazards; Medical-care; Drugs; Standards; Metallic-poisoning; Physiological-response; Prophylaxis; Heavy-metals; Hematology
CODEN
AIHAAP
CAS No.
60-00-4; 7439-92-1
Publication Date
19771001
Document Type
Journal Article
Fiscal Year
1978
NTIS Accession No.
NTIS Price
Issue of Publication
10
ISSN
0002-8894
Source Name
American Industrial Hygiene Association Journal
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