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Document ID (ISN)18777
CIS number 73-964
ISSN - Serial title Igiena
Year 1972
Convention or series no.
Author(s) Frits T.
Title Intracranial circulation rheography in workers exposed to carbon monoxide
Original title Reografia circulaţiei sanguine intracraniene la muncitorii expuşi la oxid de carbon [in Romanian]
Bibliographic information May 1972, Vol.21, No.5, p.277-284. Illus. 25 ref.
Abstract The blood circulation of 69 workers exposed to CO and 11 unexposed controls in a formic acid and oxalic acid works was examined by cerebral rheography. In the exposed group, 28 subjects had a history of acute CO poisoning due to plant leakages, although the CO concentration at the workplace was generally less than 30mg/m3. Consequently, average carboxyhaemoglobin concentrations were below 6%, but reached 18% in a few cases. Intracranial perfusion index anomalies were found in 74% of the subjects in this group. In a second group of exposed workers without any history of acute CO poisoning, pronounced haemodynamic anomalies were found in 39% of the cases. The authors conclude that the observed intracranial-circulation anomalies are due to "micro-poisoning" without loss of consciousness, rather than to the usual CO concentration at the workplace.
Descriptors (primary) biological effects; carbon monoxide
Descriptors (secondary) special examinations and tests; acute poisoning; workplaces; comparative analysis; electrodiagnosis; exposure; carboxyhaemoglobin level
Document type D - Periodical articles
Subject(s) Toxic and dangerous substances
Broad subject area(s)
Browse category(ies) Carbon monoxide
Inorganic substances