RESUMEN
We determined blood concentrations of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in 41 female employees with previous exposure to pentachlorophenol-based wood preservatives from 10 day-care centers in the Hamburg, Germany, area. We compared the blood concentrations with estimated age-dependent reference values and analyzed the correlation between PCDD/PCDF indoor air exposure and blood concentrations. The analyses based on the PCDD congeners 1,2,3,4,7,8-, 1,2,3,6,7,8-, and 1,2,3,7,8,9-hexaCDD (hexaCDD), 1,2,3,4,6,7,8-heptaCDD (heptaCDD), octaCDD, and the 2,3,7,8-tetrachlorodibenzo-p-dioxin toxicity equivalents calculated according to the international NATO-CCMS model (I-TEQ). In comparison to the estimated reference values, the blood concentrations of hexaCDD and I-TEQ spread around the mean estimate. Data for octaCDD scattered in some cases distinctly above the upper confidence limit. Reference values for heptaCDD could not be estimated. The correlation between PCDD/PCDF indoor air exposure and PCDD/PCDF blood concentrations was examined by linear multiple regression analysis considering different exposure variables and taking confounders into account. Analyses were carried out with the total study group and with a restricted subgroup. Associations were shown between the PCDD/PCDF indoor air concentrations and blood concentrations for heptaCDD and for the I-TEQ, whereas hexaCDD showed no association. OctaCDD showed a negative association in the total study group and no association in the subgroup analysis. In summary, the analyses showed no clear association between PCDD/PCDF indoor air exposure in day-care centers and PCDD/PCDF blood levels of female employees previously exposed to wood preservatives. By contrast, the results consistently indicated a positive association between PCDD/PCDF blood concentrations and exposure to wood preservatives in private homes.
Asunto(s)
Contaminación del Aire Interior/análisis , Guarderías Infantiles , Dioxinas/sangre , Furanos/sangre , Exposición Profesional , Dibenzodioxinas Policloradas/análogos & derivados , Adulto , Niño , Dioxinas/efectos adversos , Monitoreo del Ambiente , Femenino , Furanos/efectos adversos , Humanos , Persona de Mediana Edad , Dibenzodioxinas Policloradas/efectos adversos , Dibenzodioxinas Policloradas/sangre , MaderaRESUMEN
Blood-fat concentrations of polychlorinated biphenyls (PCB) congeners: no. 105, 118, 156 (mono-ortho-substituted) and no. 77, 126, 169 (non-ortho-substituted) and PCB congeners no. 28, 52, 101, 138, 153 and 180 were measured. The investigations were carried out in pooled samples from children and in individual samples from adults. Additionally polychloro-p-dibenzodioxins and -furans (PCDD/PCDF) were investigated.
Asunto(s)
Bifenilos Policlorados/sangre , Tejido Adiposo/metabolismo , Adulto , Benzofuranos/análisis , Benzofuranos/metabolismo , Niño , Exposición a Riesgos Ambientales , Alemania , Humanos , Isomerismo , Persona de Mediana Edad , Bifenilos Policlorados/metabolismo , Dibenzodioxinas Policloradas/análogos & derivados , Dibenzodioxinas Policloradas/análisis , Dibenzodioxinas Policloradas/sangre , Dibenzodioxinas Policloradas/metabolismo , Polímeros/metabolismoRESUMEN
The occurrence of septic shock in lower extremity surgery is rare. Its early identification and treatment are vital to its outcome. The authors present a case history of septic shock occurring in the surgical wound care patient, discuss the pathophysiology of septic shock, and then consider diagnosis along with treatment options.
Asunto(s)
Choque Séptico/etiología , Infección de Heridas/complicaciones , Desbridamiento , Femenino , Fluidoterapia , Pie/cirugía , Humanos , Persona de Mediana Edad , Choque Séptico/fisiopatología , Choque Séptico/terapiaRESUMEN
The authors review congestive heart failure and present a case report. The basic signs, symptoms, and treatment modalities are discussed in order to provide more complete knowledge of a condition commonly seen by the podiatrist. Interaction between the family physician and the podiatric physician create the necessary team to deal with cardiac decompensation.
