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2014, Number 1

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Rev Med Inst Mex Seguro Soc 2014; 52 (1)

Otoneurologic and cardiovascular abnormalities associated to carbon monoxide poisoning in occupational exposed workers

Vargas-Martínez A, Reyna-López V, Rodríguez-Ortegac F

Language: Spanish
References: 25
Page: 44-49
PDF size: 78.28 Kb.


ABSTRACT

Background: even though Federal Labor Law includes carbon monoxide poisoning in the list of occupational diseases, the registration of this intoxication rarely occurs in a work environment. The objective was to determine the association of this poisoning with cardiovascular and otoneurologic disorders, in order to establish adequately this diagnosis as a work-related illness.
Methods: cross-sectional survey performed in a group of broiler production workers, compared with a control group (n = 54). The sample consisted of people aged between 18 and 74 years, males and females, smokers and non-smokers. We excluded those participants with clinical history of cardiac attack. We determined carboxyhemoglobin (COHb) rates in exhaled air, and performed an audiometric test, and a 12-lead electrocardiogram.
Results: we studied 54 workers (57 % males and 43 % females). We obtained a statistically signifi cant difference (p ‹ 0.05) to develop hearing loss between the two groups, an odds ratio › 1 also in regards to hearing loss, and cardiovascular manifestations (anterior fascicle hemiblock).
Conclusions: otoneurologic and cardiovascular abnormalities in occupationally exposed workers to carbon monoxide are not casual, and suggest a cause-effect relationship.


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