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CP-012 Medicines reconciliation ñ implementation by clinical pharmacists in the otorhinolaryngology clinic. Eur J Hosp Pharm 2015. [DOI: 10.1136/ejhpharm-2015-000639.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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PS-120 Challenges in evaluation of electronic switch modules for home medication. Eur J Hosp Pharm 2015. [DOI: 10.1136/ejhpharm-2015-000639.441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Improving the uptake of predictive testing and colorectal screening in Lynch syndrome: a regional primary care survey. Clin Genet 2015; 87:517-24. [DOI: 10.1111/cge.12559] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 01/07/2015] [Accepted: 01/08/2015] [Indexed: 12/20/2022]
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Factors Associated With Critical-Care Healthcare Workers' Adherence to Recommended Barrier Precautions During the Toronto Severe Acute Respiratory Syndrome Outbreak. Infect Control Hosp Epidemiol 2015; 28:1275-83. [DOI: 10.1086/521661] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2007] [Accepted: 06/21/2007] [Indexed: 01/04/2023]
Abstract
Objective.To assess factors associated with adherence to recommended barrier precautions among healthcare workers (HCWs) providing care to critically ill patients with severe acute respiratory syndrome (SARS).Setting.Fifteen acute care hospitals in Ontario, CanadaDesign.Retrospective cohort study.Patients.All patients with SARS who required intubation during the Toronto SARS outbreak in 2003.Participants.HCWS who provided care to or entered the room of a SARS patient during the period from 24 hours before intubation until 4 hours after intubation.Methods.Standardized interviews were conducted with eligible HCWs to assess their interactions with the SARS patient, their use of barrier precautions, their practices for removing personal protective equipment, and the infection control training they received.Results.Of 879 eligible HCWs, 795 (90%) participated. In multivariate analysis, the following predictors of consistent adherence to recommended barrier precautions were identified: recognition of the patient as a SARS case (odds ratio [OR], 2.5 [95% confidence interval {CI}, 1.5-4.5); recent infection control training (OR for interactive training, 2.7 [95% CI, 1.7-4.4]; OR for passive training, 1.7 [95% CI, 1.0-3.0]), and working in a SARS unit (OR, 4.0 [95% CI, 1.8-8.9]) or intensive care unit (OR, 4.3 [95% CI, 2.0-9.0]). Two factors were associated with significantly lower rates of consistent adherence: the provision of care for patients with higher Acute Physiology and Chronic Health Evaluation (APACHE) II scores (OR for score APACHE II of 20 or greater, 0.4 [95% CI, 0.28-0.68]) and work on shifts that required more frequent room entry (OR for 6 or more entries per shift, 0.5 [95% CI, 0.32-0.86]).Conclusions.There were significant deficits in knowledge about self-protection that were partially corrected by education programs during the SARS outbreak. HCWs' adherence to self-protection guidelines was most closely associated with whether they provided care to patients who had received a definite diagnosis of SARS.
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Colonoscopy screening compliance and outcomes in patients with Lynch syndrome. Colorectal Dis 2015; 17:38-46. [PMID: 25213040 DOI: 10.1111/codi.12778] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Accepted: 07/15/2014] [Indexed: 12/14/2022]
Abstract
AIM Colonic surveillance reduces the lifetime risk of colorectal cancer in patients with Lynch syndrome (hereditary nonpolyposis colorectal cancer) from 60 to 80% to 10% and confers a 7-year survival advantage. The British Society of Gastroenterologists recommends colonoscopy at least every 2 years from the age of 25. Currently in the UK, genetic diagnosis is made by a regional genetics service, and screening recommendations are made to the referring clinician. The aim of this study was to investigate compliance with and the effectiveness of large bowel surveillance in Lynch syndrome. METHOD A retrospective longitudinal study of Lynch syndrome mutation carriers on the Regional Familial Colorectal Cancer Registry under and not under screening was conducted. To investigate screening compliance, patients were included if they were alive at the start of the study. Data were gathered on timeliness, quality and outcome of screening. To examine the effectiveness of screening, the cumulative incidence of colorectal cancer was estimated using Kaplan-Meier curves and the screened population compared with patients not being screened. RESULTS A total of 227 Lynch syndrome mutation carriers were under screening at 26 hospitals. We assessed 439 colonoscopies for timeliness, of which 68% were compliant (interval < 27 months). Compliance on the 1 November 2011 was 87%. The cumulative incidence of colorectal cancer to the age of 70 was 25% (95% CI 17-32%) in the surveillance population and 81% (95% CI 78-84%) in 689 mutation-positive patients not being screened (P < 0.0001). CONCLUSION Overall, 68% of colonoscopies were on time. The incidence of colorectal cancer was greatly reduced by screening but remained significant. Patients with Lynch syndrome need proactive surveillance management.
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The diet of the common wombat (Vombatus ursinus) above the winter snowline in the decade following a wildfire. AUSTRALIAN MAMMALOGY 2015. [DOI: 10.1071/am14037] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The use of high elevations with deep snow cover presents a challenge to mammalian herbivores, which is exacerbated by subalpine vegetation dynamics such as slow regrowth following disturbance. We postulated that post-fire responses of common wombats (Vombatus ursinus) at high elevations would differ from those at low elevations. We examined the winter diet of common wombats in the Snowy Mountains in the decade after fire in burnt and unburnt areas and compared our results to published diet studies from low elevations. Optimal foraging theory predicts that as food resources become scarce herbivores respond by widening their choice of foods, yet we found that wombats have only marginally wider dietary breadth at higher than at lower elevations in terms of plant forms and diet breadth in terms of species was not greater. The use of shrubs and the tall herb Dianella tasmanica enables wombats to reduce the energetic costs of digging for food in snow. Able to survive fire in a burrow, the wombat is then capable of responding to reduced foraging opportunities following fire by broadening the range of species consumed and adopting foraging strategies that exploit temporally improved food quality, demonstrated by the greater proportion of grass consumed in burnt sites.
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Total motile sperm on semen analysis is not predictive of sex chromosome aneuploidy. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.1169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Additive effects of nicotine and high-fat diet on hepatocellular apoptosis in mice: involvement of caspase 2 and inducible nitric oxide synthase-mediated intrinsic pathway signaling. Horm Metab Res 2014; 46:568-73. [PMID: 24830635 PMCID: PMC4327908 DOI: 10.1055/s-0034-1375610] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Smoking is a major risk factor for diabetes and cardiovascular disease and may contribute to nonalcoholic fatty liver disease (NAFLD). The health risk associated with smoking is exaggerated by obesity and is the leading causes of morbidity and mortality worldwide. We recently demonstrated that combined treatment with nicotine and a high-fat diet (HFD) triggers greater oxidative stress, activates hepatocellular apoptosis, and exacerbates HFD-induced hepatic steatosis. Given that hepatocellular apoptosis plays a pivotal role in the pathogenesis of NAFLD, using this model of exacerbated hepatic steatosis, we elucidated the signal transduction pathways involved in HFD plus nicotine-induced liver cell death. Adult C57BL6 male mice were fed a normal chow diet or HFD with 60% of calories derived from fat and received twice daily IP injections of 0.75 mg/kg BW of nicotine or saline for 10 weeks. High-resolution light microscopy revealed markedly higher lipid accumulation in hepatocytes from mice received HFD plus nicotine, compared to mice on HFD alone. Addition of nicotine to HFD further resulted in an increase in the incidence of hepatocellular apoptosis and was associated with activation of caspase 2, induction of inducible nitric oxide synthase (iNOS), and perturbation of the BAX/BCL-2 ratio. Together, our data indicate the involvement of caspase 2 and iNOS-mediated apoptotic signaling in nicotine plus HFD-induced hepatocellular apoptosis. Targeting the caspase 2-mediated death pathway may have a protective role in development and progression of NAFLD.
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WS14.1 Day-time variability and short term effect of chest physiotherapy on multiple breath nitrogen washout in children with cystic fibrosis. J Cyst Fibros 2014. [DOI: 10.1016/s1569-1993(14)60088-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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WS20.3 Lung clearance index and Aspergillus colonization are clinical markers of chronic lung changes by spirometry controlled CT in children with cystic fibrosis. J Cyst Fibros 2014. [DOI: 10.1016/s1569-1993(14)60122-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Interim estimates of 2013/14 influenza clinical severity and vaccine effectiveness in the prevention of laboratory-confirmed influenza-related hospitalisation, Canada, February 2014. Euro Surveill 2014; 19. [DOI: 10.2807/1560-7917.es2014.19.9.20729] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Binary file ES_Abstracts_Final_ECDC.txt matches
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Does diet constrain the occupation of high elevations by macropods? A comparison between Macropus rufogriseus and Wallabia bicolor. AUSTRALIAN MAMMALOGY 2014. [DOI: 10.1071/am14007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The ability to utilise a diet of shrubs or trees is key to the survival of herbivores in deep snow. However, reduction in snow depth with climate change may allow herbivores into higher elevations where herbfields are dominant. Wallabia bicolor occurs above the winter snowline of the Snowy Mountains in the subalpine zone, whereas Macropus rufogriseus, does not although it is present in alpine Tasmania. The winter diet of W. bicolor in the Snowy Mountains consisted of shrubs, trees, and herbs. With >60% of food sources (shrubs and trees) available above the snow, the change from occupation of habitat below the winter snowline to above requires little change in its diet. Consumption of shrubs, forbs and monocots by M. rufogriseus was similar between the Snowy Mountains and alpine Tasmania. M. rufogriseus includes a high proportion of shrubs in its diet; however, it may be excluded from snow-covered habitat due to a lesser ability to utilise poor-quality browse. Globally, migratory herbivores respond to deep snow with seasonal movements. However, W. bicolor and M. rufogriseus are not migratory and can only occupy higher elevations of the Snowy Mountains as snow depth and duration diminish. Because they do not currently occupy the alpine zone and the vegetation has not evolved to accommodate their presence, their impact on alpine vegetation is likely to be greater than migratory alpine grazers/browsers.
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Abstract
CONCLUSION The comprehensive Hearing Preservation classification system presented in this paper is suitable for use for all cochlear implant users with measurable pre-operative residual hearing. If adopted as a universal reporting standard, as it was designed to be, it should prove highly beneficial by enabling future studies to quickly and easily compare the results of previous studies and meta-analyze their data. OBJECTIVES To develop a comprehensive Hearing Preservation classification system suitable for use for all cochlear implant users with measurable pre-operative residual hearing. METHODS The HEARRING group discussed and reviewed a number of different propositions of a HP classification systems and reviewed critical appraisals to develop a qualitative system in accordance with the prerequisites. RESULTS The Hearing Preservation Classification System proposed herein fulfills the following necessary criteria: 1) classification is independent from users' initial hearing, 2) it is appropriate for all cochlear implant users with measurable pre-operative residual hearing, 3) it covers the whole range of pure tone average from 0 to 120 dB; 4) it is easy to use and easy to understand.
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P3.427 Exploring the Beliefs, Attitudes, and Behaviours of MSM Engaged in Substance Use and Transactional Sex in Ghana. Sex Transm Infect 2013. [DOI: 10.1136/sextrans-2013-051184.0878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Undisplaced intracapsular hip fractures in the elderly: predicting fixation failure and mortality. A prospective study of 162 patients. J Orthop Sci 2013; 18:578-85. [PMID: 23686084 DOI: 10.1007/s00776-013-0400-7] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Accepted: 04/08/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND Reported revision of internal fixation for undisplaced intracapsular hip fractures is between 12 and 17% at 1 year. This risk is greater for elderly patients, for whom mortality after such a fracture is also higher. Our purpose was to identify predictors of fixation failure and mortality for elderly patients sustaining undisplaced intracapsular hip fractures, and to assess whether their socioeconomic status affected their outcome. METHODS During a 3-year period we prospectively compiled a consecutive series of 162 elderly (≥65 years old) patients who underwent internal fixation for an undisplaced (Garden stage I or II) intracapsular hip fracture. Patient demographics, American Society of Anesthesiologists (ASA) grade, and posterior tilt (measured on the lateral radiograph) were recorded pre-operatively. All patients were followed up for a minimum of 1 year. Each patient's socioeconomic status was assigned by use of the Scottish Index of Multiple Deprivation. Patient mortality was established by use of the General Register Office for Scotland. RESULTS There were 28 failures of fixation during the study period. In Cox regression analysis, ASA grade and the presence of posterior tilt (p < 0.0001) were significant independent predictors of fixation failure. Overall unadjusted mortality at 1 year was 19% (n = 30/162). Cox regression analysis also affirmed ASA grade to be the only significant independent predictor of 1-year mortality (p = 0.003). The standardised mortality rate for the cohort was 2.3 (p < 0.001), and was significantly greater for patients less than 80 years of age (p = 0.004). Socioeconomic status did not affect outcome, but the most deprived patients sustain their fracture at a significantly younger age (p = 0.001). CONCLUSION We have demonstrated that ASA grade and posterior tilt of the femoral neck are independent predictors of fixation failure of undisplaced intracapsular hip fractures in elderly patients, and ASA grade was also an independent predictor of mortality.
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Diet selection by European hares (Lepus europaeus) in the alpine zone of the Snowy Mountains, Australia. EUR J WILDLIFE RES 2013. [DOI: 10.1007/s10344-013-0723-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Defining the impact of individual sample variability on routine immunoassay of serum free light chains (sFLC) in multiple myeloma. Clin Exp Immunol 2013; 171:201-9. [PMID: 23286947 DOI: 10.1111/cei.12011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2012] [Indexed: 11/27/2022] Open
Abstract
Serum free light chain (sFLC) measurement has gained widespread acceptance and is incorporated into various diagnostic and response criteria. Non-linearity and antigen excess are the main causes of 'variability' in the measurement of sFLC using immunoassay, but the impact of these on measurement has been unclear. We performed a retrospective evaluation using a dilutional strategy to detect these phenomena. A total of 464 samples in 2009 and 373 samples in 2010 were analysed for sFLC. Non-linearity was detected in both high and apparently normal sFLC. Major non-linearity of more than twofold is common in high kappa (20·2%) and lambda (14·1%). It is less common in samples with apparently normal levels - kappa (6·4%) and lambda (9·5%). 9·4% of kappa and 15·5% of lambda showed antigen excess at screening dilutions. 34·4% of the samples had either non-linearity or antigen excess. We conclude that significant measurement variability is common in the measurement of sFLC. There is currently no reliable technique to detect non-linearity phenomena unless a serial dilution strategy is applied to every analysis. We recommend that laboratories routinely reporting sFLC results for clinical services need appropriate strategies for addressing these issues. Clinicians should be aware of these limitations in interpretation of sFLC assay for individual patients. Future guidelines should adopt action thresholds which are grounded firmly in test performance parameters.
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Abstract
Urological tumours are the third most frequent malignancy in Lynch syndrome after colonic and endometrial cancer. Upper urinary tract tumours are well recognised in Lynch syndrome, but the association with prostate and bladder cancer is controversial. We determined the incidence and cumulative and relative risks of prostate and bladder cancer in a cohort of Lynch syndrome families. Male Lynch syndrome mutation carriers and their genetically untested male first degree relatives (FDR) were identified from the Manchester Regional Lynch syndrome database (n = 821). Time to the development of urological cancer was identified for each urological site (renal pelvis, ureter, bladder and prostate). Cumulative and relative risks were calculated, with results classified by mutation carrier status and specific causative genetic mutations. Eight prostate cancers were identified, only one occurring before the age of 60. Analysis of person-years at risk of prostate cancer by Lynch syndrome mutation carrier status suggests a correlation between MSH2 mutation carriers and a tenfold increased risk of prostate cancer (RR 10.41; 95 % CI 2.80, 26.65). No such association was found with bladder cancer (RR 1.88; 95 % CI 0.21, 6.79). The association of upper urinary tract tumours with MSH2 and MLH1 mutations was confirmed. We have carried out the largest study of male Lynch syndrome mutation carriers to establish the risks of urological malignancy. A tenfold increased risk of prostate cancer is supported in MSH2 with mutation carriers having roughly double the risk of prostate cancer to FDRs. A trial of PSA testing in MSH2 carriers from 40 to 50 years may be justifiable.
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Abstract
AIM Lifetime risk of a metachronous colorectal cancer (mCRC) is 0.6-3% following sporadic colorectal cancer (CRC) and 15-26% in Lynch syndrome. The lifetime incidence of CRC in individuals with moderate familial risk is 8-17%. Risk of mCRC is unknown. METHOD A retrospective longitudinal study of the Regional Familial CRC Registry was performed. Patients who had at least one CRC were categorized as follows: moderate risk (n = 383), Lynch syndrome (n = 528) and average (population) risk (n = 409). The Kaplan-Meier estimate (1-KM) and the cumulative incidence function were used to calculate the risk of mCRC. The 1-KM gives the risk for individuals remaining at risk (alive) at a given time point and thus is useful for counselling. The cumulative incidence function gives the risk for the whole population. RESULTS The 1-KM and the cumulative incidence function demonstrated that the risk of mCRC was significantly higher in moderate-risk patients compared with average (population)-risk patients (1-KM, P = 0.008; cumulative incidence function, P = 0.00097). However, the risk of mCRC was higher in patients with Lynch syndrome than in moderate-risk or average (population)-risk patients. The 1-KM in moderate-risk patients was 2.7%, 6.3% and 23.5% at 5, 10 and 20 years, respectively. In average (population)-risk patients, the 1-KM was 1.3%, 3.1% and 7.0% at 5, 10 and 20 years, and the cumulative incidence function was 0.3%, 0.6% and 2.4% at the same time points, respectively. CONCLUSION These data indicate that the risk of mCRC is significantly higher in patients with a moderate family history of CRC than in those with an average (population) risk. This justifies proactive lifelong surveillance.
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Re-assessment of Mountain Pygmy-possumBurramys parvuspopulation size and distribution of habitat in Kosciuszko National Park. ACTA ACUST UNITED AC 2013. [DOI: 10.7882/az.2013.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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New and established tyrosine kinase inhibitors for chronic myeloid leukemia. DRUGS OF TODAY (BARCELONA, SPAIN : 1998) 2012; 48:601-13. [PMID: 23032801 DOI: 10.1358/dot.2012.48.9.1869590] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Chronic myeloid leukemia (CML) is an uncommon malignancy, the treatment and prognosis of which have dramatically shifted over the last decade. Characterized by a translocation between chromosomes 9 and 22, known as the Philadelphia chromosome, small-molecule tyrosine kinase inhibitors (TKIs) targeted against the oncogenic BCR-ABL fusion protein have changed this once fatal disease into the model of targeted therapy. This article will review the pharmacological and clinical data supporting the use of imatinib and the second-generation TKIs dasatinib and nilotinib, and the novel TKIs bosutinib and ponatinib.
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Seasonal and altitudinal influences on the home range and movements of common wombats in the
A
ustralian
S
nowy
M
ountains. J Zool (1987) 2012. [DOI: 10.1111/j.1469-7998.2011.00881.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Evaluation of an HIV prevention intervention for African Americans and Hispanics: findings from the VOICES/VOCES Community-based Organization Behavioral Outcomes Project. AIDS Behav 2011; 15:1691-706. [PMID: 21573724 DOI: 10.1007/s10461-011-9961-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
There is limited knowledge about whether the delivery of evidence-based, HIV prevention interventions in 'real world' settings will produce outcomes similar to efficacy trial outcomes. In this study, we describe longitudinal changes in sexual risk outcomes among African American and Hispanic participants in the Video Opportunities for Innovative Condom Education and Safer Sex (VOICES/VOCES) program at four CDC-funded agencies. VOICES/VOCES was delivered to 922 high-risk individuals in a variety of community settings such as substance abuse treatment centers, housing complex centers, private residences, shelters, clinics, and colleges. Significant risk reductions were consistently observed at 30- and 120-days post-intervention for all outcome measures (e.g., unprotected sex, self-reported STD infection). Risk reductions were strongest for African American participants, although Hispanic participants also reported reducing their risky behaviors. These results suggest that, over a decade after the first diffusion of VOICES/VOCES across the U.S. by CDC, this intervention remains an effective tool for reducing HIV risk behaviors among high-risk African American and Hispanic individuals.
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Raised tryptase without anaphylaxis or mastocytosis: heterophilic antibody interference in the serum tryptase assay. Clin Exp Immunol 2011; 163:339-45. [PMID: 21303361 DOI: 10.1111/j.1365-2249.2010.04287.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Mast cell tryptase (MCT) is a key diagnostic test for mastocytosis and anaphylaxis. High serum tryptase levels are also one of the risk factors for adverse reaction in venom immunotherapy, yet occasional patients are seen with raised levels in the absence of either diagnosis. False positive results can be due to assay interference by heterophilic antibodies such as rheumatoid factor (RF) and human anti-mouse antibodies (HAMA). We therefore investigated heterophilic antibody interference by rheumatoid factor activity and HAMA as a cause of raised MCT results in the Phadia tryptase assay. Serum samples from 83 patients were assayed for MCT and rheumatoid factor before and after the use of heterophilic antibody blocking tubes (HBT). Samples with more than 17% reduction in MCT with detectable RF were then assayed for HAMA. Fourteen (17%) of the 83 samples with positive RF showed a >17% decrease in mast cell tryptase after HBT blocking. Post-HBT, eight of 14 (57%) reverted from elevated to normal range values with falls of up to 98%. RF levels were also decreased significantly (up to 75%). Only one of the 83 tested was apparently affected by HAMA in the absence of detectable IgM RF. In conclusion, any suspicious MCT result should be checked for heterophilic antibodies to evaluate possible interference. False positive MCT levels can be caused by rheumatoid factor. We suggest a strategy for identifying assay interference, and show that it is essential to incorporate this caveat into guidance for interpretation of MCT results.
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Persistent complement-dependent anti-AnWj in a lymphoproliferative disorder: a case study and review. Immunohematology 2011; 27:83-88. [PMID: 22462101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
AnWj is a high-incidence antigen present on the red blood cells (RBCs) of greater than 99 percent of the general population. A 58-year-old man underwent autologous hematopoietic stem cell transplantation (HSCT) for stage IVa mantle cell lymphoma. This procedure was complicated by failure to engraft, necessitating ongoing support with blood components. After a 2-month period of uneventful transfusion support, the patient experienced increasingly severe reactions with fever and evidence of intravascular hemolysis, including hemoglobinuria. Testing revealed a complement-dependent anti-AnWj. Phenotyping confirmed the AnWj- phenotype. Anti-AnWj was persistent despite immunosuppression, including treatment with allogeneic HSCT. Of interest, the pathogenesis of the downregulation of the graft AnWj in this patient is unclear.
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Abstract
BACKGROUND Military personnel exposed to potentially traumatic events whilst deployed on operational duties may develop psychological problems. The Royal Marines have made extensive use of Trauma Risk Management (TRiM), a peer-support system that operates through practitioners embedded within operational units. TRiM aims to promote recognition of psychological illness and to facilitate social support. AIMS To evaluate the effects of TRiM in two units at different stages of implementation. METHODS Royal Marines and Army personnel were surveyed prior to, during and upon return from an operational deployment to Afghanistan. Participants completed measures of general mental health (GHQ12) and traumatic stress [PCL(C)]. RESULTS We received responses from 180 pre-deployment, 105 during deployment and 137 post-deployment. Personnel within units with experience of TRiM reported lower levels of psychological distress than personnel in the unit who were using TRiM for the first time. Both groups reported higher psychological distress scores before and during deployment, compared with post-deployment. However, we found personnel who reported having more access to social support during deployment reported less psychological distress. CONCLUSIONS The use of TRiM may assist in increasing the psychological resilience of military personnel through the facilitation of social support; this may have particular utility during operational deployments.
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Physicians and hand hygiene practice: a focus group study. J Hosp Infect 2010; 76:87-9. [PMID: 20638748 DOI: 10.1016/j.jhin.2010.04.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Accepted: 04/29/2010] [Indexed: 11/19/2022]
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Abstract
The submarine hydrothermal activity on and near the Galápagos Rift has been explored with the aid of the deep submersible Alvin. Analyses of water samples from hydrothermal vents reveal that hydrothermal activity provides significant or dominant sources and sinks for several components of seawater; studies of conductive and convective heat transfer suggest that two-thirds of the heat lost from new oceanic lithosphere at the Galápagos Rift in the first million years may be vented from thermal springs, predominantly along the axial ridge within the rift valley. The vent areas are populated by animal communities. They appear to utilize chemosynthesis by sulfur-oxidizing bacteria to derive their entire energy supply from reactions between the seawater and the rocks at high temperatures, rather than photosynthesis.
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Epidemiology of influenza-associated hospitalization in adults, Toronto, 2007/8. Eur J Clin Microbiol Infect Dis 2010; 29:835-43. [PMID: 20428910 PMCID: PMC2889286 DOI: 10.1007/s10096-010-0935-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2009] [Accepted: 04/03/2010] [Indexed: 11/25/2022]
Abstract
The purpose of this investigation was to identify when diagnostic testing and empirical antiviral therapy should be considered for adult patients requiring hospitalization during influenza seasons. During the 2007/8 influenza season, six acute care hospitals in the Greater Toronto Area participated in active surveillance for laboratory-confirmed influenza requiring hospitalization. Nasopharyngeal (NP) swabs were obtained from patients presenting with acute respiratory or cardiac illness, or with febrile illness without clear non-respiratory etiology. Predictors of influenza were analyzed by multivariable logistic regression analysis and likelihoods of influenza infection in various patient groups were calculated. Two hundred and eighty of 3,917 patients were found to have influenza. Thirty-five percent of patients with influenza presented with a triage temperature >or=38.0 degrees C, 80% had respiratory symptoms in the emergency department, and 76% were >or=65 years old. Multivariable analysis revealed a triage temperature >or=38.0 degrees C (odds ratio [OR] 3.1; 95% confidence interval [CI] 2.3-4.1), the presence of respiratory symptoms (OR 1.7; 95% CI 1.2-2.4), admission diagnosis of respiratory infection (OR 1.8; 95% CI 1.3-2.4), admission diagnosis of exacerbation of chronic obstructive pulmonary disease (COPD)/asthma or respiratory failure (OR 2.3; 95% CI 1.6-3.4), and admission in peak influenza weeks (OR 4.2; 95% CI 3.1-5.7) as independent predictors of influenza. The likelihood of influenza exceeded 15% in patients with respiratory infection or exacerbation of COPD/asthma if the triage temperature was >or=38.0 degrees C or if they were admitted in the peak weeks during the influenza season. During influenza season, diagnostic testing and empiric antiviral therapy should be considered in patients requiring hospitalization if respiratory infection or exacerbation of COPD/asthma are suspected and if either the triage temperature is >or=38.0 degrees C or admission is during the weeks of peak influenza activity.
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85
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Ventilation inhomogeneity correlates with airway colonization in patients with CF. J Cyst Fibros 2010. [DOI: 10.1016/s1569-1993(10)60219-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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86
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Test of Lorentz invariance with spin precession of ultracold neutrons. PHYSICAL REVIEW LETTERS 2009; 103:081602. [PMID: 19792714 DOI: 10.1103/physrevlett.103.081602] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2009] [Indexed: 05/28/2023]
Abstract
A clock comparison experiment, analyzing the ratio of spin precession frequencies of stored ultracold neutrons and 199Hg atoms, is reported. No daily variation of this ratio could be found, from which is set an upper limit on the Lorentz invariance violating cosmic anisotropy field b perpendicular < 2 x 10(-20) eV (95% C.L.). This is the first limit for the free neutron. This result is also interpreted as a direct limit on the gravitational dipole moment of the neutron |gn| < 0.3 eV/c2 m from a spin-dependent interaction with the Sun. Analyzing the gravitational interaction with the Earth, based on previous data, yields a more stringent limit |gn| < 3 x 10(-4) eV/c2 m.
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87
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Oral ganciclovir versus valganciclovir for cytomegalovirus prophylaxis in high-risk liver transplant recipients. Transpl Infect Dis 2009; 11:106-11. [PMID: 19054381 DOI: 10.1111/j.1399-3062.2008.00356.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This retrospective review compared oral valganciclovir (VGCV) 450 mg daily for 6 months versus oral ganciclovir (GCV) 1000 mg 3 times daily for 3 months in preventing cytomegalovirus (CMV) disease in high-risk liver transplant recipients.We evaluated all CMV donor positive-recipient negative liver transplant recipients managed at University Health System in San Antonio,Texas from August 1996 to September 2006. CMV disease was confirmed by polymerase chain-reaction or antigenemia assay, and CMV invasive disease by tissue biopsy. Patient demographics, laboratory results, complications, and therapies were collected via retrospective chart review. Patients < 18 years of age or those who died during transplant admission were excluded. Primary endpoints included incidence, onset, and severity of CMV disease up to 1 year post transplant. Data collection also included patient demographics, immunosuppression, CMV treatment regimens, and relevant lab results. A total of 64 patients (43 VGCV and 21 GCV) were identified. Four patients developed CMV disease:VGCV (3/43,7%) versus GCV (1/21, 5%) (P=1.0), with 1 VGCV patient experiencing tissue-invasive CMV. In all cases, onset of CMV disease occurred after prophylaxis was discontinued. Onset occurred at 24, 27, and 45 weeks post transplant in the VGCVgroup, and at 26 weeks in the 1 patient on GCV. Four patients received rabbit antithymocyte globulin (rATG) induction; 1 patient received rATG and developed CMV disease, with no statistical difference compared with the 3 remaining patients who received rATG but did not develop CMV disease (P=0.09). No difference was found in incidence of CMV disease between patients who received GCV and those who received VGCV at our institution.
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88
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Abstract
Rabbit corneal endothelial permeability to sucrose and dextran was determined after storage in moist chamber or MK medium. When compared to fresh rabbit corneas there was no statistically significant difference in endothelial permeability to these two solutes after both types of storage for periods up to ten days.
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89
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Laboratory study of solvent enhanced communication in oil sands. CAN J CHEM ENG 2009. [DOI: 10.1002/cjce.5450630603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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90
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Abstract
Abstract
The East Bodo, Lloydminster SS heavy oil pool has been exploited using primary recovery and waterflood. IOR screening showed that a polymer flood would be a preferred IOR technique. Subsequent coreflood tests indicated that the polymer flood could recover 20% OOIP incremental oil, after waterflooding, to a 95% water cut. Data gathered from the coreflood was used to fine tune the reservoir simulation model to help design the pilot and predict potential economic reserve capture for a commercial field-wide polymer flood. Subsequently, a pilot was initiated. During the pilot operation, achieving the target polymer viscosity, dependant on water quality, proved to be a significant challenge. Early field response is being observed through an increase in injection pressure, reduced water cut and polymer breakthrough. Further positive response of this polymer pilot allows for the expansion of the polymer flood technology to other parts of this reservoir; some with bottomwater and gas cap. This paper reviews the progress of the East Bodo polymer flood, from laboratory concept to working field application, in four major steps:IOR screening using simulations and coreflooding,field pilot design/implementation,pilot performance, andnext steps.
Introduction
Pengrowth has targeted East Bodo (Alberta side) and Cosine (Saskatchewan side) for waterflood optimization and subsequent enhanced oil recovery applications. Currently, the most practical EOR technology for this heavy oil reservoir seems to be the polymer flood technology in combination with horizontal wells. Several investigators(1–4) have demonstrated the potential of the polymer flood technology for improved oil recovery in heavy oil reservoirs.
The East Bodo/Cosine Reservoir produces from the Lloydminster Formation, which is part of the Lower Cretaceous Mannville Group. Pengrowth provided some of the reservoir characteristics, as summarized in Table 1. This particular reservoir is separated into two parallel lobes trending North/West to South/East.
To complicate matters, local gas caps are found primarily on the Saskatchewan side of the reservoir. Thus, the current waterflood patterns are located on the Alberta side. In the future, optimized waterflood and EOR schemes need to include those parts of the reservoir which are overlain by gas caps or influenced by bottomwater. A plan of progression aligned with the priorities of Pengrowth was laid out as follows:Optimize existing waterflood;Step out waterflood into limited gas cap areas;Then, target areas with a more extensive gas cap;Determine enhanced waterflood potential, for instance polymer flood; andArrange well patterns to benefit both waterflood and subsequent EOR process.
IOR Screening
Several IOR technologies were considered for application in the East Bodo Field. What follows is a list of IOR processes that were initially considered, but screened out after technical or economical issues could not be overcome.Thermal Recovery: Pay is too thin - heat loss to overburden is too large; oil not viscous enough to form a stable steam chamber; fireflood has potential, but a previous pilot on a neighbouring McLaren pool yielded poor results.
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91
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Abstract
This paper reviews the evidence regarding whether a standardised examination in the newborn period can improve infant health. The review considers aspects of delivering such a service from timing and number of examinations through to who should perform examinations, and whether evidence supports current practice. Infants at higher risk of anomaly such as those born preterm are highlighted. Aspects of the examination itself are reviewed, such as detection of congenital heart disease, and the relatively poor detection rate which does not seem to be improving. Potential advantages of additional screening with pulse oximetry are covered. The paper also discusses screening for developmental dysplasia of the hip, which the UK national screening council is unsure of the benefit of, the difficulties of detecting all cases of cleft palate and problems with screening for the very important congenital cataract. The authors draw attention to the relative rarity of some conditions and reflected on how this complicates screening.
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92
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Investigation of a multi-ball, automatic dynamic balancing mechanism for eccentric rotors. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2008; 366:705-728. [PMID: 17947208 DOI: 10.1098/rsta.2007.2123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
This paper concerns an analytical and experimental investigation into the dynamics of an automatic dynamic balancer (ADB) designed to quench vibration in eccentric rotors. This fundamentally nonlinear device incorporates several balancing masses that are free to rotate in a circumferentially mounted ball race. An earlier study into the steady state and transient response of the device with two balls is extended to the case of an arbitrary number of balls. Using bifurcation analysis allied to numerical simulation of a fully nonlinear model, the question is addressed of whether increasing the number of balls is advantageous. It is found that it is never possible to perfectly balance the device at rotation speeds comparable with or below the first natural, bending frequency of the rotor. When considering practical implementation of the device, a modification is suggested where individual balls are contained in separate arcs of the ball race, with rigid partitions separating each arc. Simulation results for a partitioned ADB are compared with those from an experimental rig. Close qualitative and quantitative match is found between the theory and the experiment, confirming that for sub-resonant rotation speeds, the ADB at best makes no difference to the imbalance, and can make things substantially worse. Further related configurations worthy of experimental and numerical investigation are proposed.
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93
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Invasive pneumococcal disease in adult hematopoietic stem cell transplant recipients: a decade of prospective population-based surveillance. Bone Marrow Transplant 2008; 41:743-7. [PMID: 18176614 DOI: 10.1038/sj.bmt.1705964] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Prospective population-based surveillance to assess the epidemiology of invasive pneumococcal disease (IPD) in hematopoietic stem cell transplant (HSCT) patients is limited and a comparison to the general population is lacking. By using a population-based Invasive Bacterial Diseases Network surveillance program, we studied the incidence, clinical significance, serotypes and antimicrobial resistance of IPD in a large cohort of adult HSCT patients and the general population. Streptococcus pneumoniae isolates and patient data were collected prospectively from 1995 to 2004. We identified 14 cases of IPD (based on sterile site isolates) in our HSCT population over a 10-year period. This translated to an incidence rate of 347 infections per 100 000 persons per year. This compared to an incidence of 11.5 per 100 000 persons per year in the general population (regression ratio=30.2; 95% confidence interval (CI) 17.8-50.8, P<0.00001). If nonsterile site isolates (respiratory tract) were included, the incidence rate in transplant patients was 446 per 100 000 persons per year. Serotypes 23F and 6B were most common; 100 and 69.2% of isolates were a serotype included in the pneumococcal polysaccharide and conjugate vaccines, respectively. The antimicrobial resistance rates were high, especially for trimethoprim/sulfamethoxazole. HSCT recipients are at significantly greater risk for IPD than the general population. Preventative strategies are necessary.
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94
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The projected distributions of Mastacomys fuscus and Rattus lutreolus in south-eastern Australia under a scenario of climate change: potential for increased competition? WILDLIFE RESEARCH 2008. [DOI: 10.1071/wr07055] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Animal distribution is strongly controlled by climate, especially at higher altitudes where harsher conditions favour fewer vertebrate species. A predicted consequence of climate change is increased pressure on these higher-altitude faunal communities by invasion of lower-altitude species more suited to warmer conditions. The distribution of two such species, the broad-toothed rat (Mastacomys fuscus) and swamp rat (Rattus lutreolus) (with the former generally occurring at higher altitude except in Tasmania), were examined using BIOCLIM. Modelled climate change with a 20% reduction in precipitation and a warming of 2.9°C at latitude 36°S (Snowy Mountains) and 3.4°C at 42°S (central Tasmania) suggests that M. fuscus will retreat to higher altitudes. The core areas of R. lutreolus will also contract, but significantly they will also move so that they overlap current core areas of M. fuscus on the mainland. Barrington Tops is the northernmost known location for M. fuscus and is climatically marginal. The recent invasion of Barrington Tops by R. lutreolus and decline of M. fuscus raises the question as to whether the modelled broader range changes will result in greater competition between the invading R. lutreolus and the cool-climate specialist M. fuscus, resulting in the further loss of the latter.
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95
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Invasive pneumococcal disease in solid organ transplant recipients--10-year prospective population surveillance. Am J Transplant 2007; 7:1209-14. [PMID: 17286615 DOI: 10.1111/j.1600-6143.2006.01705.x] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Prospective population-based surveillance to assess the incidence and impact of invasive pneumococcal disease (IPD) in organ transplant patients is lacking. By using a population-based Invasive Bacterial Diseases Network surveillance program, we studied the incidence, clinical significance, serotypes and antimicrobial resistance pattern of IPD in a large cohort of adult transplant patients and the general population. Streptococcus pneumoniae isolates and patient data were collected prospectively from 1995 to 2004. We identified 21 cases of IPD (based on sterile-site isolates) in our organ transplant population over a 10-year period. This translated to an incidence rate of 146 infections per 100,000 persons per year. This compared to an incidence of 11.5 per 100,000 persons per year in the general population (R(R)=12.8; 95% CI 8.1-19.9, p<0.00001). If nonsterile-site isolates (respiratory tract) were included, the incidence rate in transplant patients was 419 of 100 000 persons per year. Serotypes 23F and 22F were most common, and 85.0% had a serotype included in the 23-valent pneumococcal vaccine. The antimicrobial resistance rates were high, especially for penicillin and trimethoprim-sulfamethoxazole (TMP/SMX), but were not significantly different from the general population. Solid organ transplant recipients are at significantly greater risk for IPD than the general population. Preventative strategies are necessary.
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96
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O322 Nosocomial invasive pneumococcal disease in Toronto, Canada, 1995–2005. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)70212-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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97
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Gas Liquid Chromatographic—Mass Spectrometric Methods for Quantitation of Prostaglandin Analogs. ANAL LETT 2006. [DOI: 10.1080/00032717608059094] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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98
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The effect of larval age on morphology and gene expression during ascidian metamorphosis. Integr Comp Biol 2006; 46:760-76. [DOI: 10.1093/icb/icl015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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99
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Improved experimental limit on the electric dipole moment of the neutron. PHYSICAL REVIEW LETTERS 2006; 97:131801. [PMID: 17026025 DOI: 10.1103/physrevlett.97.131801] [Citation(s) in RCA: 163] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2006] [Revised: 03/29/2006] [Indexed: 05/12/2023]
Abstract
An experimental search for an electric dipole moment (EDM) of the neutron has been carried out at the Institut Laue-Langevin, Grenoble. Spurious signals from magnetic-field fluctuations were reduced to insignificance by the use of a cohabiting atomic-mercury magnetometer. Systematic uncertainties, including geometric-phase-induced false EDMs, have been carefully studied. The results may be interpreted as an upper limit on the neutron EDM of |d(n)|< 2.9 x 10(-26)e cm (90% C.L.).
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100
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Laboratory-confirmed influenza-associated hospitalizations among children in the metropolitan Toronto and Peel region by active surveillance, 2004-2005. CANADA COMMUNICABLE DISEASE REPORT = RELEVE DES MALADIES TRANSMISSIBLES AU CANADA 2006; 32:203-7. [PMID: 16989046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
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