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Small airways function in workers exposed to piperazine.

L Hagmar1, M Arborelius, T Bellander

  • 1Department of Occupational Medicine, University Hospital, Lund, Sweden.

International Archives of Occupational and Environmental Health
|January 1, 1987
PubMed
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Occupational exposure to piperazine (a potential asthma-inducing amine) did not impair small airways function in male workers. Age and smoking habits, however, were linked to changes in lung function.

Area of Science:

  • Occupational Medicine
  • Pulmonary Physiology
  • Toxicology

Background:

  • Piperazine is an amine associated with asthma induction in occupational settings.
  • Assessing small airways function is crucial for detecting early respiratory impairment.

Purpose of the Study:

  • To evaluate the effect of occupational piperazine exposure on small airways function.
  • To determine if piperazine exposure leads to small airways disease in non-asthmatic workers.

Main Methods:

  • Utilized the nitrogen (N2) wash-out technique to measure small airways function.
  • Assessed 22 male workers exposed to piperazine and 22 matched referent subjects.
  • Measured the volume of trapped gas (VTG) before and after bronchial provocation with methacholine.

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Main Results:

  • No significant differences in VTG were found between piperazine-exposed workers and referent subjects.
  • This held true both before and after methacholine challenge.
  • Age and smoking habits showed a significant association with VTG.

Conclusions:

  • A time-weighted average (TWA) exposure to approximately 0.1 mg piperazine/m3 does not appear to cause small airways disease in non-asthmatic workers.
  • Small airways function is influenced by factors such as age and smoking history.