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  • 11
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Journal of advanced nursing 47 (2004), S. 0 
    ISSN: 1365-2648
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background.  Although minor facial injuries are relatively common, their psychological impact is an area neglected in the literature. For physiologically major injuries (such as facial cancers, burns and fractures), the face has been suggested to be a psychologically significant area of the body and disfigurement has been found to have numerous potential social consequences for patients.Aims.  This paper reports the findings of an inquiry that explored the psychological impact of minor facial injuries and the influence of patient and scar characteristics in relation to self-consciousness and anxiety levels.Method.  Data were collected in 2001 in an accident and emergency unit from patients with a visible laceration over 1·5 cm that was treatable in an outpatient setting. The Derriford Appearance Scale (with general and social self-consciousness subscales) and the State-Trait Anxiety Inventory were administered to 63 patients 1 week later; data on 50 patients were also available 6 months after the injury.Results.  Larger scar size, living alone and aetiology of injury were significantly related to self-consciousness and anxiety levels, although gender, age, socio-economic group, location of scar, satisfaction with appearance and number of scars were not. General self-consciousness improved at 6 months but social self-consciousness and anxiety remained the same. Patient factors were not related to changes in general self-consciousness over time.Conclusions.  Minor facial scars can have significant psychological impact for some people. Awareness training for health professionals, social skills training for affected patients and a patient information leaflet are recommended.
    Type of Medium: Electronic Resource
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  • 12
    ISSN: 1524-475X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The objective of this study was to evaluate the effect of sharp debridement on the progression of recalcitrant chronic venous leg ulcers (CVLU) and to assess the feasibility of performing this procedure in an outpatient setting. We performed a prospective study of 55 CVLU (53 patients) over a 12-month period. The study group, which underwent debridement, contained 28 CVLU whose wound beds had slough, nonviable tissue, and no granulation tissue. The control group was 27 CVLU with minimal (15–20%) granulation tissue, but no slough or nonviable tissue. Treatments were otherwise similar. Age, body mass index, mean ulcer surface area (MSA) and mean ulcer duration were comparable in both groups. Ulcer measurements were taken at 4 weeks before debridement, at the time of debridement, and 4 and 20 weeks post-debridement. There was no change in the MSA from 4 weeks before to the time of debridement in either group. At 4 weeks post-debridement, the study ulcers showed a 6 cm2 reduction in the MSA vs. a 1 cm2 reduction in controls (P = 0.02). By week 20 post-debridement, the study ulcers achieved a 7.4 cm2 reduction in the MSA vs. an increase of 1.3 cm2 in controls (P = 0.008). Between weeks 8 and 20 post-debridement, 16% of study ulcers vs. 4.3% of control ulcers achieved complete healing. Infection rates and antimicrobial usage were similar. We conclude that sharp debridement is effective in stimulating healing of recalcitrant CVLU. It is safe, well tolerated, and can be performed in an outpatient setting.
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    Malden, USA : Blackwell Science Inc
    Wound repair and regeneration 13 (2005), S. 0 
    ISSN: 1524-475X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Four off-loading devices used for the treatment of diabetic forefoot ulcers were compared: a custom-molded insole shoe, a cast MABAL shoe, a prefabricated pneumatic walking brace, and a bivalved total contact cast (BTCC). It was anticipated that all devices would significantly reduce forefoot plantar pressure compared with a control shoe. Sixteen healthy volunteers participated. Plantar pressures were evaluated using the Pedar system, while walking speed was determined using an optoelectric timer. Peak pressure (PP) of ten plantar areas and pressure–time integral for the first metatarsal area were analyzed statistically using a repeated measures analysis of variance. Forefoot pressures were significantly reduced compared with the control shoe for all devices (p〈0.001). PP was most reduced (by 65.8%) for the BTCC, and pressure–time integral was most reduced for the BTCC and cast MABAL shoe. Small but significant differences between devices in walking speed (p〈0.05) could not explain the substantial PP differences between the different devices. Although all off-loading devices resulted in a significant reduction of forefoot plantar pressure, devices differed significantly in the magnitude of pressure reduction. Further research will have to reveal the level of off-loading sufficient for effective treatment of diabetic ulcers.
    Type of Medium: Electronic Resource
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  • 14
    ISSN: 1600-0765
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Factors which increase the risk of severe adult jreiodontitis (AP) may also contribute to the success of dental implants. To determine which cytokines may be relevant, levels of interleukin-1α(IL-1α), interleukin-1β(IL-1β), interleukin-1 receptor antagonist (IL-1ra), interleukin-6 (IL-6) and interferon-γ(IFN-γ) mRNA were quantitated in gingival tissue from jreiodontitis patients and healthy controls. Jreiodontitis significantly increased levels of IL-1α, IL-1β, IL-6 and IFN-γ mRNA relative to healthy tissues. IL-1 was selected for further study, as it has inflammatory and bone resorbing projreties. We examined IL-1A(−889) and IL-1B(+3953) alleles in Caucasian patients with AP and early-onset jreiodontitis (EOP), patients with dental implants and healthy individuals. The IL-1B(+3953) polymorphism was associated with AP. This was evident from an increased homozygosity for allele 2 in patients with AP and a decreased heterozygosity in advanced AP patients. IL-1A(−889) and a composite genotype [IL-1A(−889)2 plus IL-1B(+3953)2] showed no association with the incidence of jreiodontitis, disease onset or disease severity. IL-1A(−889), IL-1B(+3953) and the composite genotype also showed no association with failure of dental implants.
    Type of Medium: Electronic Resource
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  • 15
    ISSN: 1619-7089
    Keywords: Positron emission tomography ; Liver perfusion ; Modelling ; Oxygen-15 labelled water
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To date no satisfactory method has been available for the quantitative in vivo measurement of the complex hepatic blood flow. In this study two modelling approaches are proposed for the analysis of liver blood flow using positron emission tomography (PET). Five experiments were performed on three foxhounds. The anaesthetised dogs were each given an intravenous bolus injection of oxygen-15 labelled water, and their livers were then scanned using PET. Radioactivity in the blood from the aorta and portal vein was measured directly and simultaneously using closed external circuits. Time-activity curves were constructed from sequential PET data. Data analysis was performed by assuming that water behaves as a freely diffusible tracer and adapting the standard one-compartment blood flow model to describe the dual blood supply of the liver. Two particular modelling approaches were investigated: the dual-input model used both directly measured input functions (i.e. using the hepatic artery and the portal vein input, determined from the radioactivity detected in the aorta and portal vein respectively) whereas the single-input model used only the measured arterial curve and predicted the corresponding portal input function. Hepatic arterial flow, portal flow and blood volume were fitted from the PET data in several regions of the liver. The resulting estimates were then compared with reference blood flow measurements, obtained using a standard microsphere technique. The microspheres were injected in a separate experiment on the same dogs immediately prior to PET scanning. Whilst neither the single- nor the dual-input models accurately reproduced the arterial reference flow values, the flow values from the single-input model were closer to the microsphere flow values. The proposed single-input model would be a good approximation for liver blood flow measurements in man. The observed discrepancies between the PET and microsphere flow values may be due to the inherent temporal and spatial heterogeneity of liver blood flow. The results presented suggest that adaptation of the standard one-compartment blood flow model to describe the dual blood supply of the liver is limited and other flow tracers have to be considered for quantitative PET measurements in the liver.
    Type of Medium: Electronic Resource
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  • 16
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    Unknown
    PANGAEA
    In:  Supplement to: Molina-Cruz, Adolfo; Price, Patricia (1977): Distribution of opal and quartz in the ocean-floor of the subtropical southeastern Pacific. Geology, 5(2), 81-84, https://doi.org/10.1130/0091-7613(1977)5%3C81:DOOAQO%3E2.0.CO;2
    Publication Date: 2023-06-27
    Description: The distribution patterns of opal and quartz on the ocean floor of the subtropical southeastern Pacific have been defined by analyzing 59 surface-sediment samples. The opal distribution resembles that of primary productivity in the surface waters, except along the Peruvian and northern Chilean coasts, where dilution reduces opal values. The distribution pattern of quartz represents both eolian and fluvial transport. Quartz distribution extends out as a tongue in the same direction and position as the prevailing southeast trade winds. Along the South American coast, high quartz concentrations are found in patches near shore and decrease rapidly seaward.
    Keywords: DEPTH, sediment/rock; Elevation of event; Event label; GC; Gravity corer; Latitude of event; Longitude of event; MG1; MG3; MG4; Opal, carbonate free fraction; PC; Piston corer; Quartz; RC08; RC08-98; RC09; RC09-82; RC09-83; RC09-86; RC09-87; RC09-89; RC09-90; RC09-91; RC11; RC1112; RC11-230; RC11-234; RC13; RC13-100TW; RC13-105TW; RC13-111TW; RC13-117TW; RC13-96TW; RC13-98TW; RC13-99TW; RC15; RC15-52TW; RC15-53TW; RC15-54TW; RC15-55TW; RC15-58TW; Robert Conrad; South Pacific Ocean; V15; V15-33; V15-56; V19; V19-30; V19-36; V19-38; V19-39; V19-46; V21; V21-29; V24; V24-40; V24-46; Vema; Y69-103P; Y69-104MG; Y69-71P; Y69-80MGL; Y71-06; Y71-06-04; Y71-06-12; Y71-06-14; Y71-06-18; Y71-07; Y71-07-27; Y71-07-28; Y71-07-30; Y71-07-32; Y71-07-33; Y71-07-35; Y71-07-36; Y71-07-38; Y71-08; Y71-08-70; Y71-08-77; Y71-09; Y71-09-84; Y71-09-85; Y71-09-86; Y71-09-87; Y71-09-88; Y71-09-89; Y71-09-91; YALOC69; Yaquina
    Type: Dataset
    Format: text/tab-separated-values, 114 data points
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