| Symptoms, lung function, and airway responsiveness following irritant inhalation. | |
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MedLine Citation:
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PMID: 8404087 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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STUDY OBJECTIVE: To estimate the incidence of respiratory symptoms and physiologic abnormalities after inhalation of common irritant chemicals. DESIGN: Structured interview of 12 months of poison control center (PCC) inhalation cases. Follow-up measurement of pulmonary function and airway responsiveness in a subgroup with symptoms 12 to 24 h postexposure. SETTING: A regional PCC and clinical pulmonary function laboratory. PATIENTS: Consecutive sample of 547 inhalation cases. Interviews of 299 subjects. Lung function follow-up in 10 subjects. MEASUREMENTS AND MAIN RESULTS: Immediate respiratory symptoms were reported by 262 (88 percent) subjects; 12 to 24 h postexposure symptoms were reported by 130 (44 percent). Cigarette smoking was significantly related to immediate onset of cough (relative risk [RR] = 1.3; 95 percent confidence interval [CI], 1.1 to 1.5); both smoking (RR = 1.6; 95 percent CI, 1.1 to 2.1) and prior asthma (RR = 1.3; 95 percent CI, 1.1 to 1.6) were associated with wheeze, exhibiting multiplicative combined risk (RR = 2.8; 95 percent CI, 1.9 to 4.3). Of 10 subjects studied, none had abnormal airflow or lung volumes 8 +/- 4 days postexposure; 8 demonstrated increased airway responsiveness to methacholine. By three months, only one subject's increased responsiveness reversed; in three others, symptoms resolved but increased responsiveness remained. CONCLUSIONS: Respiratory symptoms following irritant exposure are associated with smoking and asthma and typically resolve quickly. Continuing symptoms are associated with persistent increased airway responsiveness without other pulmonary function abnormalities. This may reflect newly induced airway changes or, alternatively, could represent underlying increased responsiveness in subjects symptomatic after irritant exposure. |
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Authors:
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P D Blanc; M Galbo; P Hiatt; K R Olson; J R Balmes |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Chest Volume: 103 ISSN: 0012-3692 ISO Abbreviation: Chest Publication Date: 1993 Jun |
Date Detail:
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Created Date: 1993-11-10 Completed Date: 1993-11-10 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0231335 Medline TA: Chest Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1699-705 Citation Subset: AIM; IM |
Affiliation:
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University of California SF 94143-0924. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Administration, Inhalation Adult Asthma / complications Bronchial Provocation Tests Environmental Exposure Female Follow-Up Studies Humans Irritants* Male Occupational Diseases / chemically induced, physiopathology Respiratory Mechanics* Respiratory Tract Diseases / chemically induced*, physiopathology* Smoking / adverse effects |
| Grant Support | |
ID/Acronym/Agency:
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K07ES00219-01/ES/NIEHS NIH HHS; R49CCR903697-01//PHS HHS |
| Chemical | |
Reg. No./Substance:
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0/Irritants |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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