Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology
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Ann. Allergy Asthma Immunol. · Jun 2003
Randomized Controlled Trial Comparative Study Clinical TrialConstruct validity and responsiveness of the Child Health Questionnaire in children with acute asthma.
To examine the validity and responsiveness of the Child Health Questionnaire (CHQ-PF28) in the context of acute exacerbation of asthma in children. ⋯ Both the physical and psychosocial subscales of the CHQ-PF28 administered 14 days after an ED visit for acute exacerbation of asthma are correlated with poor short-term functional outcome, but scores are only moderately responsive to acute changes in functional status.
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Ann. Allergy Asthma Immunol. · Jun 2003
Comparative StudyClinical features of recurrent and insidious chronic bird fancier's lung.
Chronic bird fancier's lung (BFL) can be subgrouped into two types. One subgroup of patients develops interstitial pulmonary fibrosis after recurrent acute episodes (recurrent BFL), and the other subgroup of patients has no history of acute episodes but has slowly progressive chronic respiratory disease (insidious BFL). ⋯ Insidious BFL may be misdiagnosed as idiopathic pulmonary fibrosis if a careful history is not taken and antigen-induced lymphocyte proliferation, careful imaging evaluation, and laboratory-controlled inhalation challenge testing are not conducted. In contrast, the clinical findings of recurrent BFL are consistent with hypersensitivity pneumonitis induced by other antigens.
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Ann. Allergy Asthma Immunol. · May 2003
ReviewWorkplace irritant exposures: do they produce true occupational asthma?
To describe the features of irritant-induced asthma and discuss the diagnosis in relation to differing workplace irritant exposures and symptomatic responses. ⋯ Irritant-induced asthma can be produced by high-level unintentional respiratory irritant exposures at work or outside the workplace. Lower levels of exposure to respiratory irritants at work are more common, and additional studies are needed to determine the airway effects of such exposures.
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Ann. Allergy Asthma Immunol. · Apr 2003
Needle sticks and adverse outcomes in office-based allergy practices.
In 1984 the first case of needle stick transmitted human immunodeficiency virus was reported. In 1986 Occupational Safety and Health Administration was petitioned by various unions representing health care employees to develop a standard which protects employees from occupational exposure to blood-borne diseases. Congress passed the Needle Stick Safety and Prevention Act. This specifies that "safer medical devices, such as sharps with engineered sharps injury protections and needle-less systems" constitute an effective engineering control, and must be used where feasible. This has been mandated in California as part of the labor code. Blood-borne pathogens of concern in needle stick injuries are human immunodeficiency virus, hepatitis virus B, and hepatitis virus C. ⋯ The rate of ANSs in the allergist's office is 2% that of general medical ANSs. The current "safety" needles have no proven effectiveness. There is no reported disease transmission in the allergist's office setting using existent methods. This solution needs further study before there is generalized implementation of the engineering devices of no proven effectiveness that may in fact increase ANSs.
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Ann. Allergy Asthma Immunol. · Apr 2003
Serum interferon-gamma is associated with longitudinal decline in lung function among asthmatic patients: the Normative Aging Study.
Cytokines are important mediators of the asthmatic response. A retrospective pilot study showed that serum levels of interleukin (IL)-5 and interferon (IFN)-gamma were related to lung function decline among asthmatic patients over the preceding 3 years. To confirm these findings, we tested the hypothesis that serum cytokines are associated with longitudinal lung function decline. ⋯ Serum levels of IFN-gamma are associated with subsequent rate of change in lung function among asthmatic patients in this cohort of middle-aged and older men, and may be useful as biologic markers of risk for accelerated lung function decline in population studies.