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  • Biological monitoring  (1)
  • Connatal hearing loss  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Angeborene Erkrankungen des Hörvermögens bei Kindern Teil 1: Erworbene Hörstörungen (2000)
    Springer
    HNO 48 (2000), S. 879-886 
    Details
    ISSN: 1433-0458
    Keywords: Schlüsselwörter Hörstörung ; Prävalenz ; Konnatale Hörstörungen ; Erworbene Hörstörungen ; Progredienz ; Infektionen ; Kinder ; Keywords Hearing loss ; Prevalence ; Connatal hearing loss ; Acquired hearing loss ; Progressive hearing loss ; Infections ; Children
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract The results of international investigations on connatally acquired hearing loss are compared with the data of the German Registry on Childhood Hearing Loss (4058 cases). The connatal hearing disorders have shown a notable change in the last years regarding to aetiology and prevalence. In contrast to countries of the third world in developed nations the prevalence of permanent childhood hearing loss has been reduced down to 1 in 1.000 births. The results let assume a prevalence of approximately 1:1.200 births in Germany. For instance the number of rubella embryopathia decreased effectively. In contrast CMV infections and alcohol fetopathia are playing an increasing role. In the patients of the German Registry on Childhood Hearing Loss the percentage of certainly progressive hearing loss is 10.3 within the 4058 children with permanent hearing impairment. Diagnostic procedures first of all for the early diagnosis of CMV but also of toxoplasmosis are considerable because these infections may result in treatable hearing loss. Also consequent hearing tests are demanded in children with alcohol fetopathia.
    Notes: Zusammenfassung Im vorliegenden Beitrag werden die Daten internationaler Studien zu angeborenen erworbenen Hörstörungen mit den Ergebnissen aus 4058 Fällen im Deutschen Zentralregister für kindliche Hörstörungen (DZH) verglichen und ausgewertet. Die angeborenen Erkrankungen des Hörvermögens haben innerhalb der letzten Jahre bezüglich Ätiologie und Prävalenz einen deutlichen Wandel erlebt. Im Gegensatz zu Ländern der 3. Welt ist die Prävalenz permanenter kindlicher Hörstörungen in den westlichen Industrienationen auf ca. 1:1.000 gesunken. In Deutschland liegt die Prävalenz nach ersten Ergebnissen des DZH bei ca. 1,2:1.000. So ist beispielsweise der Anteil der Rötelnembryopathien stark zurückgegangen. Dagegen spielen heute die Zytomegalievirus-(CMV)-Infektion und die Alkoholfetopathie eine größere Rolle. Im Patientenkollektiv des DZH mit 4058 permanent hörgestörten Kindern beträgt der Anteil gesichert progredienter Verläufe 10,3%. Diagnostische Verfahren, vor allem zur Früherkennung von CMV und Toxoplasmose, gewinnen zunehmend an Bedeutung. Ebenso ist eine konsequente Hördiagnostik auch bei Kindern mit Alkoholfetopathie zu fordern.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001060050684
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Intake and health effects of thallium among a population living in the vicinity of a cement plant emitting thallium containing dust (1981)
    Springer
    International archives of occupational and environmental health 48 (1981), S. 375-389 
    Details
    ISSN: 1432-1246
    Keywords: Thallium exposure ; Cement factories ; Biological monitoring ; Thallium levels in urine ; Thallium levels in hair ; Health effects of low-level chronic thallium exposure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In order to assess the degree of thallium exposure in a population living around a thallium emitting cement plant in a small city in North-West Germany thallium levels in 24 h urine samples of 1,265 subjects and in hair samples of 1,163 subjects were determined. Urinary thallium levels in two groups of subjects living in an urban and a rural area of West Germany were determined for reference. As compared to these subjects the population living around the cement plant exhibited obvious signs of increased thallium intake. The mean urinary thallium concentration was 2.6 μg/1 and ranged up to 76.5 pg/1. In contrast, the mean urinary thallium levels of the two reference groups were 0.2 and 0.4 μg/1, respectively. Hair thallium levels of the population living around the cement plant were also markedly increased (mean: 9.5 ng/g). The major route of the population's increased intake of thallium was found to be the consumption of vegetables and fruit grown in private gardens in the vicinity of the cement plant. As was shown by chemical analyses vegetables and fruit grown in these gardens were contaminated by thallium-containing atmospheric dust fall-out caused by emissions of the cement plant. The pulmonary route of uptake as well as other sources did not seem to play a significant role in the population's exposure to thallium. Polyneuritic symptoms, sleep disorders, headache, fatigue and other signs of psychasthenia were found to be the major health effects associated with increased thallium levels in urine and hair. No positive correlation was found between the thallium levels in hair and urine and the prevalence of skin alterations, hair-loss and gastro-intestinal dysfunctions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00378686
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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