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Steam baths.

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Health↗

Outbreak of boils in an Alaskan village: a case-control study.

OBJECTIVE: To determine whether taking steam baths was associated with furunculosis and to evaluate possible risk factors for the occurrence of boils during a large outbreak in Alaska. DESIGN: A cohort study of village residents, a case-control study, and assessment of environmental cultures taken from steam baths. SETTING: Village in southwestern Alaska. PARTICIPANTS: 1 adult member from 77 of the 92 households in the village was interviewed; 115 residents with at least one boil occurring between January 1 and December 12, 1996 were considered to be cases; 209 residents without a boil acted as the control group. All 459 village residents were included in the cohort study. MAIN OUTCOME MEASURE: Rate of infection among all residents and residents who regularly took steam baths, risk factors for infection, and relative risk of infection. RESULTS: 115 people (25%) had had at least one boil. Men were more likely to have had a boil than women (relative risk 1.5; 95% confidence interval 1.1 to 2.2). The highest rate of infection was among people ages 25-34 years (32/76; 42%). No children younger than 2 years had had boils. Boils were associated with using a steam bath (odds ratio 8.1; 3.3 to 20.1). Among those who used a steam bath, the likelihood of developing boils was reduced by routinely sitting on a towel while bathing, which women were more likely to do, and bathing with fewer than 8 people. Of the 93 samples taken from steam baths, one Staphylococcus aureus isolate was obtained from a bench in an outer dressing room. CONCLUSION: Using a steam bath was associated with developing boils in this outbreak in a village in Alaska. People should be advised to sit on towels while using steam baths.

Adolescent↗

High prevalence of the neurotrope Exophiala dermatitidis and related oligotrophic black yeasts in sauna facilities.

The black yeast Exophiala dermatitidis, an agent of fatal brain infections in East Asia, is common in European steam baths. The related fungi Sarcinomyces phaeomuriformis and Exophiala mesophila were isolated from locations in these complexes with lower ambient temperature and/or moisture. The latter two species had dry, rather than slimy, colonies and lower maximum growth temperatures (38 degrees C, 32 degrees C) than E. dermatitidis (42 degrees C). Exophiala dermatitidis produces abundant extracellular polysaccharide (EPS). The only E. dermatitidis strains lacking EPS were found outside the steam baths. Therefore it is likely that the extracellular polysaccharides commonly produced by E. dermatitidis are significant to survival under hot and moist conditions. Substrates sampled as controls, such as fruit surfaces and human faeces, yielded Exophiala dermatitidis at very low frequency.

Baths↗

Sauna habits and related symptoms in Finnish children.

Fifteen hundred randomly chosen Finnish children aged 0-15 years were studied by a questionnaire about their sauna habits and possible abnormal symptoms during or immediately after the sauna. A total of 1247 families (83%) answered. Almost all children visited the sauna (98.5%), most of them "with pleasure" (83%). Nearly half of the children were in the sauna as often as 2-3 times a week, and over 90% at least once a week. The children's sauna visits began quite early, in 70% during infancy. The time spent in a hot steam bath increased with age. Symptoms were rare and were not serious. Transient symptoms (dizziness, nausea etc.) were the most common. Of the children, 17% had some chronic or recurring disorder, most commonly atopic dermatitis or middle ear infections. In half of the cases of atopic dermatitis it became worse in the sauna. Sauna is a very common practice in Finland, also among children. It does not seem to cause any significant immediate harm to healthy children.

Adolescent↗

Free and conjugated catecholamines in human plasma during physical exercise.

To investigate changes of free and sulfoconjugated catecholamines in response to alterations in sympatho-adrenal activity, free and conjugated noradrenaline, adrenaline and dopamine were determined radioenzymatically in plasma of 49 subjects. During brief vigorous bicycle exercise (8 min, maximal heart rate: 177 beats/min) mean free noradrenaline and adrenaline values of 2.0 and 0.51 nmol/l at rest, increased to 6.7 and 2 nmol/l (P less than 0.001) respectively, at the maximal workload of 200 watt, whereas conjugated noradrenaline and adrenaline decreased from 3.4 and 0.8 nmol/l to 2.1 and 0.4 nmol/l (P less than 0.001) respectively. In the tenth min of the recovery period basal free and conjugated noradrenaline and adrenaline levels were measured. The moderate stress of a steam bath (20 min, maximal heart rate: 131 beats/min) doubled free noradrenaline and adrenaline levels. However, conjugated noradrenaline and adrenaline concentrations remained unchanged. The increase in free catecholamine values during an exhausting cross-country march over 20 km was associated with an accumulation of sulfated catecholamines. After a rest of 30 min free noradrenaline and adrenaline reached basal values, whereas conjugated noradrenaline and adrenaline remained elevated by 64 and 70% respectively, compared to pre-exercise concentrations. It was concluded that conjugated noradrenaline and adrenaline may be used as pools for free noradrenaline and adrenaline during brief vigorous exercise. In addition, they may also be indicators of chronic activation of the sympatho-adrenal system.

Adult↗

[Crisis and decline of bath houses].

For centuries bath-houses and barber-surgeons formed such an integral part of public life that one is mystified by their vanishing from modern view with hardly any trace left. Previous authors have offered a variety of reasons for this disappearance: the bath-houses' notorious reputation, developing fuel-shortage, the "new" fashion of taking the waters and the outbreak of previously unknown contagious diseases are among those mentioned most frequently. While these factors may be valid reasons for a crisis afflicting the "hot-houses" they would hardly explain why fate overtook the barber-surgeons' entire trade. Judging from the sources available one cannot help but feel that the philosophers of the Enlightenment were largely responsible for such a dramatic change of society. Sceptical philosophy discarded the wisdom of the ancient medical authorities replacing traditional steam-bathing with "modern" cold-bathing. Society itself was subject to equally revolutionary changes: the local masters of the trade had to make room for surgeons educated at medical schools setting the stage for a new reality which has become "normal" to us.

Balneology↗

Decomposition of aminophylline in suppository formulations.

An aminophylline suppository product, when stored at room temperature, was found to be deficient in ethylenediamine content by the USP XIX assay and by a specific method for primary amines. The product also had a melting point that was considerably higher than body temperature. An accelerated decomposition experiment, conducted on normal suppositories of identical original composition, yielded a product refractory at steam bath temperatures and containing no ethylenediamine measurable by the USP assay. The suppositories from both the original sample and the decomposition experiment contained considerable amounts of a white material, which melted at similar to or approximately 150 degrees and which consisted of the diamide products formed by the reaction of ethylenediamine and the fatty acids present in coconut and palm kernel oils. The results, which confirmed the work of Cieszynski, showed that the ethylenediamine constituent of aminophylline can react with suppository base materials to produce insoluble amide decomposition products.

Amides↗