Allergy to dyes in permanent-press bed linen.
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The results of physicochemical examination of 32 kinds of unwoven fabrics as well as the examination of 7 kinds of the three-level dressings, operation, and bed clothes are reported. The fabrics consisted of polypropylene and viscose fibres, dilana, argona, polyamides and bonding agents (fixatives). In their water extracts the content of the chloride, sulphate and alkaline ions, reductors, the presence of heavy metals, the surface active substances and the pH were determined. The practical applicability of the dressings was tested in 300 cases. The dressings were well tolerated by the patients. The operation and bed clothes as well as the surgical clothes made from unwoven fabric and sterilized by radiosterilization may facilitate, the great deal of work in the operation units and in surgical wards.
The means for reducing the residue of organophosphorous and pyrethrin pediculicides on the fabric to safety levels have been developed due to the use of gas and liquid chromatography. The proposed procedures include linen washing after its pediculicidal treatment. Optimal conditions for the removal of the above substances from the fabric have been set forth. Actual quantity of pediculicides on the fabric after its treatment has been identified.
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Colour-physiological studies involving volunteers and colour-psychological interviewing of patients with varied diagnoses revealed that, currently, no compelling scientific reasons can be given for coloration in the hospital. Interviewing 68 patients from a number of clinics on the coloration of sick-rooms yielded the following preferred colours, irrespective of the patients' classing into groups by various criteria: Light colours were consistently preferred for all objects such as ceiling, walls, floor, curtains, furniture, and bed linen. It should be emphasized that even white was a desirable colour for ceilings and bed linen. Beige was found to rank first for walls, floors, curtains, and furniture, whereas the colours of wood and grey shared the second rank for floors and furniture. Green and pink ranked second for bed linen. White and green ranked second for walls and curtains, respectively. In view of the heterogeneity, the findings may not be converted into an absolute just as the recommendations by other workers. Still, the patients' wish should be given priority over decreed recommendations by experts when basic considerations of illumination (reflectance!) are allowed for in the particular overall colour design project.
The energy expenditure for and heart rate responses to common household tasks were determined in 26 older (mean age 62 +/- 2 years) women with coronary artery disease (CAD). Each activity was performed at a self-determined pace for 6 or 8 minutes. The average oxygen uptake (ml/kg/min) for each task evaluated was 6.5 for washing dishes, 6.8 for ironing, 7.2 for scrubbing pans, 8.6 for unpacking groceries, 9.5 for vacuuming, 9.8 for sweeping, 10.1 for mopping, 12.0 for changing bed linens, and 12.4 for washing the floor (hands and knees). None of the subjects reported angina. Mean relative oxygen uptake (i.e., percentage of peak response with treadmill testing) ranged from 31 +/- 2% for washing dishes to 62 +/- 3% for changing the bed linens and washing the floor. Percentage of peak treadmill heart rate ranged from 62 +/- 2% for washing dishes to 73 +/- 2% for washing the floor. In 4 of the more physically demanding household activities (i.e., vacuuming, mopping, washing the floor, and changing bed linens), the responses of 10 age-matched normal women were evaluated. The absolute and relative demands of the tasks were similar between the CAD and normal groups. Results indicate that the mean energy expenditure rate of common household tasks evaluated in this study range from 2 to 4 METs, suggesting that most women with CAD who are able to achieve > or = 5 METs during a treadmill exercise test without adverse signs or symptoms should be able to resume these activities.
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Seventy-one children with mite-sensitive asthma were randomly divided into three groups. Group 1 was comprised of 28 patients who were provided with new Microstop-treated bedding including matresses, quilts, pillows, bed linens and quilt covers. The Microstop mattresses and pillows were made of impermeable Polyurethane coated nylon ticking. Group 2 included 28 patients who were provided with new, conventional, mat Polyurethane mattresses, quilts, pillows, bed linens and quilt covers made of cotton and polyester which had not been Microstop treated. Group 3 included 15 patients who used their old bedding. Mite counts were performed on samples of dust collected from the old mattresses, pillows and quilts before the bedding was changed. After changing the bedding, mite counts were performed on dust from the same three bed sites at the end of months 1, 2, 3, 6, 9, and 12. Morning and evening peak expiratory flow, asthma symptom scores, were recorded by each patient at least 1 month before entering the study and every month during the one-year study period. Mattress mite counts were significantly reduced in Group 1 but not in Groups 2 or 3. However, quilt mite counts were significantly reduced in both Group 1 and Group 2 throughout the 12-monthstudy while mite counts in Group 3 quilts remained unchanged. The results provide evidence that the PU-coated nylon material was effective in reducing house dust mites, but do not demonstrate that the Microstop treatment had an obvious anti-mite effect. One-year follow-up of asthma symptom scores showed significant improvement in Group 1, but not in Groups 2 or 3. This suggests that the Microstop-treated bedding, as a system, was effective in asthma prevention.
BACKGROUND: House-dust mites in clothing and bedding are the source of major allergens. Based on studies of Dermatophagoides pteronyssinus only, weekly washing in hot water is recommended to kill dust mites and remove allergens from clothing and bedding. However, in the United States, washing is most often done in warm or cold water, and other mite species are involved. OBJECTIVE: The purpose of this study was to investigate the lethal effects of various temperatures of hot water alone and hot, warm, and cold water containing detergents and chlorine bleach on Dermatophagoidesfarinae, D. pteronyssinus, and Euroglyphus maynei. METHODS: Mites were soaked in test solutions at various temperatures and for various lengths of time, allowed time to recover, and then analyzed for survival. RESULTS: D. farinae was the most temperature-sensitive and chlorine bleach-sensitive of the three species. In 50 degrees C water alone, 100% mortality for D. farinae was obtained in 10 minutes, whereas most D. pteronyssinus and E. maynei survived. However, 53 degrees C-soaks for 12 and 5 minutes were needed to kill all D. pteronyssinus and E. maynei, respectively. Laundry detergents at their recommended and doubled concentrations and chlorine bleach generally increased mite mortalities over water alone for the three species. Soaking for 4 hours in warm water containing various detergents alone induced mortalities of 19 to 50%, 2 to 35%, and 14 to 46% for D. farinae, D. pteronyssinus, and E. maynei, respectively. CONCLUSIONS: Washing bed linens weekly in warm water with a 4-hour presoak containing most detergents and bleach will kill most D. farinae and, depending on the detergent brand, moderate numbers of D. pteronyssinus. Four-hour soaks in warm water containing the recommended concentrations of various detergents alone also kills moderate numbers of D. farinae, D. pteronyssinus, and E. maynei. Therefore, the cumulative effect of weekly washing with long presoaks should significantly reduce mite levels over time in bed linens, particularly when mattresses and pillows are encased to prevent reinfestation.
INTRODUCTION: Phtiriasis palperarum is an unusual cause of blepharitis. This ectoparasitic infestation of the lashes is more frequent in adult; a pubic attack is usually associated. It is however rare in children. The goal of our study is to bring back four observations of infantile phtiriasis palpebrarum. PATIENTS AND METHODS: Four children presented themselves for palpebral itching and ocular redness. Slit lamp examination revealed evidence of small parasites attached to the proximal extreme of the eyelashes. A survey within the family was carried out and parasitological examination was realized. RESULTS: Parasitological examination had identified adult forms and nits of phtirus pubis. The bed linen was the way of contamination. Mechanical extraction of the parasite was tried but was very painful. Two patients were treated with a regimen of 1% yellow oxide of mercury ointment four times daily for 14 days, the two others was treated by Vaseline pomade because of a very important palpebral irritation. Evolution was favorable among all patients. DISCUSSION: We discuss in this work the ways of contamination of phtiriasis palpebrarum in children. In fact, eyelashes contamination in children is secondary to a contact with an adult carrier of a pubic phtiriasis. The transmission can be done following sexual maltreatments or by the means of infected clothing or bed linen. The diagnosis of phtiriasis palpebrarum is clinical confirmed by parasitological examination. Different therapeutic were proposed, the mechanical treatment must be carried out but it is seldom sufficient and it is often necessary to associate a chemical treatment (malathion to 1%, mercury oxide with 1%, fluorescein with 20%...) or physical treatment (cryotherapy, laser argon). CONCLUSION: Diagnosis of phtiriasis palpebrarum is easy and requires the detection of the source of contamination in order to prevent reinfestations.
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