ISSN:1076-2752    

出版商:OVID    

年代:1996

数据来源: OVID

ISSN:1076-2752    

出版商:OVID    

年代:1996

数据来源: OVID

ISSN:1076-2752    

出版商:OVID    

年代:1996

数据来源: OVID

ISSN:1076-2752    

出版商:OVID    

年代:1996

数据来源: OVID

ISSN:1076-2752    

出版商:OVID    

年代:1996

数据来源: OVID

ISSN:1076-2752    

出版商:OVID    

年代:1996

数据来源: OVID

摘要:

This study tested psychological treatment of patients with "electric hypersensitivity." Seventeen patients were randomly assigned to a treatment group or a waiting-list control group in a pretest-posttest control group design. The patients were also taking part in double-blind provocation tests before and after the treatment. Subjective ratings of symptoms were registered and blood samples were taken and analyzed for "stress-related" variables, such as prolactin, cortisol, dehydroepiandrosterone, and cholesterol levels. The patients in the experimental group reduced their evaluations of the disability more than the control group did. This indicates that psychological treatment may be of value in this disease. However, none of the psychophysiological measures or the subjective reactions to the provocation test showed any significant between-group difference. The conclusion from the provocation test is that this group of alleged hypersensitive patients did not react to the electromagnetic fields.

ISSN:1076-2752    

出版商:OVID    

年代:1996

数据来源: OVID

摘要:

Water-plant operators may be exposed to high airborne radon-222 (222Rn) concentrations created when222Rn gas transfers from water to air during the water treatment processes. To evaluate this hazard, we placed yearlong alpha-track radon detectors in 31 water plants. The geometric mean of the annual average airborne222Rn concentrations was 3.4 pCi L-1(126 Bq m-3, with a maximum of 133 pCi L-1(4921 Bq m-3). We assessed the short-term temporal variability of222Rn by monitoring four water plants continuously for a 3- to 6-day period. Cumulative working level months were estimated for the time workers were in the water plants. Because airborne222Rn concentrations in water plants can reach levels considered unsafe for underground miners, it would be prudent to monitor airborne222Rn concentrations in water plants which aerate water as part of their treatment process.

ISSN:1076-2752    

出版商:OVID    

年代:1996

数据来源: OVID

摘要:

Latex is a common cause of occupational allergy in health care workers; latex-sensitized patients are at increased risk of allergic reactions in medical environments. Skin test reagents and latex-specific immunoglobulin E immunoassays were established for diagnosis of latex allergy. Inhibition immunoassays were developed for measuring latex aeroallergens and latex allergens in rubber products. A registry of latex-sensitive employees was established. High-allergen gloves were removed from the medical center inventory; latex aeroallergen levels subsequently declined. Despite an increasing number of gloves used annually, expenditures for gloves in 1994 were lower than in previous years. Latex-sensitive individuals can be identified using skin tests or immunoassays. Latex aeroallergen levels in medical environments can be reduced substantially at lower cost by using powder-free rubber gloves with lower allergen content.

ISSN:1076-2752    

出版商:OVID    

年代:1996

数据来源: OVID

摘要:

The purpose of this study was to determine the clinical and immunologic status of hexahydrophthalic anhydride (HHPA)-exposed employees who had developed an immunologic respiratory disease and who have been removed from exposure for at least 1 year. In a surveillance study spanning 4 years, we identified 28 employees with HHPA-induced immunologic respiratory disease who had been removed from exposure for at least 1 year. Seven had asthma, nine had hemorrhagic rhinitis, four had both, and eight had allergic rhinitis alone. Respiratory symptoms were assessed by physician-administered questionnaires. For each employee, a physical examination, spirometry, and chest roentgenograph were performed. Antibody against HHPA conjugated to human serum albumin (HHP-HSA) was measured using an enzyme-linked immunosorbent assay. Symptoms, signs, and spirometry normalized in all but one employee. There were no chest-roentgenograph findings at follow-up that could be attributed to HHPA. There was a decline in antibody titer for both immunoglobulin E and G against HHP-HSA. In this group of 28 employees, there was only one employee with mild asthma after removal from exposure for at least 1 year. Although specific antibody was still present in many, the titers were generally lower at follow-up than at presentation.

ISSN:1076-2752    

出版商:OVID    

年代:1996

数据来源: OVID