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1.
Osteoporos Int ; 34(11): 1893-1906, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37495683

RESUMO

The role of integrating genomic scores (GSs) needs to be assessed. Adding a GS to recommended stratification tools does not improve the prediction of very low bone mineral density. However, we noticed that the GS performed equally or above individual risk factors in discrimination. PURPOSE: We aimed to investigate whether adding a genomic score (GS) to recommended stratification tools improves the discrimination of participants with very low bone mineral density (BMD). METHODS: BMD was measured in three thoracic vertebrae using CT. All participants provided information on standard osteoporosis risk factors. GSs and FRAX scores were calculated. Participants were grouped according to mean BMD into very low (<80 mg/cm3), low (80-120 mg/cm3), and normal (>120 mg/cm3) and according to the Bone Health and Osteoporosis Foundation recommendations for BMD testing into an "indication for BMD testing" and "no indication for BMD testing" group. Different models were assessed using the area under the receiver operating characteristics curves (AUC) and reclassification analyses. RESULTS: In the total cohort (n=1421), the AUC for the GS was 0.57 (95% CI 0.52-0.61) corresponding to AUCs for osteoporosis risk factors. In participants without indication for BMD testing, the AUC was 0.60 (95% CI 0.52-0.69) above or equal to AUCs for osteoporosis risk factors. Adding the GS to a clinical risk factor (CRF) model resulted in AUCs not statistically significant from the CRF model. Using probability cutoff values of 6, 12, and 24%, we found no improved reclassification or risk discrimination using the CRF-GS model compared to the CRF model. CONCLUSION: Our results suggest adding a GS to a CRF model does not improve prediction. However, we noticed that the GS performed equally or above individual risk factors in discrimination. Clinical risk factors combined showed superior discrimination to individual risk factors and the GS, underlining the value of combined CRFs in routine clinics as a stratification tool.


Assuntos
Osteoporose , Fraturas por Osteoporose , Humanos , Densidade Óssea , Osteoporose/diagnóstico , Osteoporose/genética , Fatores de Risco , Curva ROC , Genômica , Medição de Risco/métodos , Absorciometria de Fóton , Fraturas por Osteoporose/etiologia , Fraturas por Osteoporose/genética
2.
Res Social Adm Pharm ; 18(10): 3744-3750, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35581126

RESUMO

BACKGROUND: Workforce reform has placed a significant focus on the role of non-medical prescribers in the healthcare system. Pharmacists are trained in pharmacology and therapeutics, and therefore well placed to act as non-medical prescribers. OBJECTIVES: To assess the safety and accuracy of inpatient medication charts within a pharmacist collaborative prescribing model (intervention), compared to the usual medical model (control) in the emergency department (ED). Another objective compared venous thromboembolism (VTE) risk assessment and prescribing, between intervention and control groups. METHODS: Adult patients in ED referred for hospital admission were randomised into control or intervention by a block randomisation method, until the required sample size was reached. Medication charts were audited retrospectively by an independent auditor, using validated audit forms. RESULTS: Intervention group medication charts contained significantly fewer prescribing errors, omissions and discrepancies compared to the control group, and improved documentation of adverse drug reactions. VTE risk assessment and prescribing had higher guideline concordance in the intervention group compared to the control group. CONCLUSIONS: This collaborative prescribing trial showed excellent results in safety and accuracy of pharmacist prescribing when compared to the usual medical model of prescribing. The admitting medical practitioner and extended scope pharmacist prescriber worked as a collaborative team in emergency, which improved Australian national prescribing safety indicators.


Assuntos
Farmacêuticos , Tromboembolia Venosa , Adulto , Austrália , Serviço Hospitalar de Emergência , Humanos , Estudos Retrospectivos , Tromboembolia Venosa/tratamento farmacológico
3.
Inflamm Bowel Dis ; 26(7): 1060-1067, 2020 06 18.
Artigo em Inglês | MEDLINE | ID: mdl-31559415

RESUMO

BACKGROUND: Inflammatory bowel disease (IBD) patients are at increased risk for developing extra-intestinal malignancies, mainly due to immunosuppressive medication. The risk of developing head and neck cancer in immunosuppressed transplant patients is increased. The relation between IBD patients and laryngeal cancer (LC) remains unclear. We aimed (1) to identify risk factors in IBD patients for LC development and (2) to compare clinical characteristics, outcome, and survival of LC in IBD patients with the general population. METHODS: All IBD patients with LC (1993-2011) were retrospectively identified using the Dutch Pathology Database. We performed 2 case-control studies: (1) to identify risk factors, we compared patients with IBD and LC (cases) with the general IBD population; (2) to analyze LC survival, we compared cases with controls from the general LC population. RESULTS: We included 55 cases, 1800 IBD controls, and 2018 LC controls. Cases were more frequently male compared with IBD controls (P < 0.001). For ulcerative colitis (UC), cases were older at IBD diagnosis (P < 0.001). Crohn's disease (CD) cases were more frequently tobacco users (P < 0.001) and more often had stricturing (P = 0.006) and penetrating (P = 0.008) disease. We found no survival difference. Immunosuppressive medication had no impact on survival. CONCLUSIONS: Male sex was a risk factor for LC in IBD patients. Older age at IBD diagnosis was a risk factor for UC to develop LC. Tobacco use and stricturing and penetrating disease were risk factors for LC development in CD patients. Inflammatory bowel disease was not associated with impaired survival of LC. Immunosuppressive medication had no influence on survival.


Assuntos
Carcinoma/etiologia , Carcinoma/mortalidade , Doenças Inflamatórias Intestinais/complicações , Neoplasias Laríngeas/etiologia , Neoplasias Laríngeas/mortalidade , Adulto , Fatores Etários , Estudos de Casos e Controles , Bases de Dados Factuais , Feminino , Humanos , Imunossupressores/uso terapêutico , Doenças Inflamatórias Intestinais/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Países Baixos/epidemiologia , Avaliação de Resultados em Cuidados de Saúde , Estudos Retrospectivos , Fatores de Risco , Fatores Sexuais
4.
Int J Cardiovasc Imaging ; 35(11): 2019-2028, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31273633

RESUMO

To determine the potential of a non-invasive acoustic device (CADScor®System) to reclassify patients with intermediate pre-test probability (PTP) and clinically suspected stable coronary artery disease (CAD) into a low probability group thereby ruling out significant CAD. Audio recordings and clinical data from three studies were collected in a single database. In all studies, patients with a coronary CT angiography indicating CAD were referred to coronary angiography. Audio recordings of heart sounds were processed to construct a CAD-score. PTP was calculated using the updated Diamond-Forrester score and patients were classified according to the current ESC guidelines for stable CAD: low < 15%, intermediate 15-85% and high > 85% PTP. Intermediate PTP patients were re-classified to low probability if the CAD-score was ≤ 20. Of 2245 patients, 212 (9.4%) had significant CAD confirmed by coronary angiography ( ≥ 50% diameter stenosis). The average CAD-score was higher in patients with significant CAD (38.4 ± 13.9) compared to the remaining patients (25.1 ± 13.8; p < 0.001). The reclassification increased the proportion of low PTP patients from 13.6% to 41.8%, reducing the proportion of intermediate PTP patients from 83.4% to 55.2%. Before reclassification 7 (3.1%) low PTP patients had CAD, whereas post-reclassification this number increased to 28 (4.0%) (p = 0.52). The net reclassification index was 0.209. Utilization of a low-cost acoustic device in patients with intermediate PTP could potentially reduce the number of patients referred for further testing, without a significant increase in the false negative rate, and thus improve the cost-effectiveness for patients with suspected stable CAD.


Assuntos
Doença da Artéria Coronariana/diagnóstico , Estenose Coronária/diagnóstico , Ruídos Cardíacos , Fonocardiografia , Adulto , Idoso , Idoso de 80 Anos ou mais , Algoritmos , Angiografia Coronária , Doença da Artéria Coronariana/classificação , Doença da Artéria Coronariana/economia , Doença da Artéria Coronariana/fisiopatologia , Estenose Coronária/classificação , Estenose Coronária/economia , Estenose Coronária/fisiopatologia , Redução de Custos , Análise Custo-Benefício , Técnicas de Apoio para a Decisão , Feminino , Custos de Cuidados de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Fonocardiografia/economia , Fonocardiografia/instrumentação , Valor Preditivo dos Testes , Prognóstico , Reprodutibilidade dos Testes , Estudos Retrospectivos , Índice de Gravidade de Doença , Adulto Jovem
5.
Int J Cardiovasc Imaging ; 35(9): 1709-1720, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31016502

RESUMO

We aimed to identify factors influencing the sensitivity of perfusion imaging after an initial positive coronary computed tomography angiography (CCTA) using invasive coronary angiography (ICA) with conditional fractional flow reserve (FFR) as reference. Secondly we aimed to identify factors associated with revascularisation and to evaluate treatment outcome after ICA. We analysed 292 consecutive patients with suspected significant coronary artery disease (CAD) at CCTA, who underwent perfusion imaging with either cardiac magnetic resonance (CMR) or myocardial perfusion scintigraphy (MPS) followed by ICA with conditional FFR. Stratified analysis and uni- and multiple logistic regression analyses were performed to identify predictors of diagnostic agreement between perfusion scans and ICA and predictors of revascularisation. Myocardial ischemia evaluated with perfusion scans was present in 65/292 (22%) while 117/292 (40%) had obstructive CAD evaluated by ICA. Revascularisation rate was 90/292 (31%). The overall sensitivity for perfusion scans was 39% (30-48), specificity 89% (83-93), PPV 69% (57-80) and NPV 68% (62-74). Stratified analysis showed higher sensitivities in patients with multi-vessel disease at CCTA 49% (37-60) and typical chest pain 50% (37-60). Predictors of revascularisation were multi-vessel disease by CCTA (OR 3.51 [1.91-6.48]) and a positive perfusion scan (OR 4.69 [2.49-8.83]). The sensitivity for perfusion scans after CCTA was highest in patients with typical angina and multiple lesions at CCTA and predicted diagnostic agreement between perfusion scans and ICA. Abnormal perfusion and multi vessel disease at CCTA predicted revascularisation.


Assuntos
Angiografia por Tomografia Computadorizada , Angiografia Coronária/métodos , Doença da Artéria Coronariana/diagnóstico por imagem , Vasos Coronários/diagnóstico por imagem , Reserva Fracionada de Fluxo Miocárdico , Imageamento por Ressonância Magnética , Imagem de Perfusão do Miocárdio/métodos , Cintilografia/métodos , Idoso , Doença da Artéria Coronariana/fisiopatologia , Doença da Artéria Coronariana/cirurgia , Vasos Coronários/fisiopatologia , Vasos Coronários/cirurgia , Dinamarca , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Revascularização Miocárdica , Valor Preditivo dos Testes , Reprodutibilidade dos Testes , Índice de Gravidade de Doença , Resultado do Tratamento
6.
Eur Heart J Cardiovasc Imaging ; 19(4): 369-377, 2018 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-29447342

RESUMO

Aims: Perfusion scans after coronary computed tomography angiography (CCTA) in patients with suspected coronary artery disease (CAD) may reduce unnecessary invasive coronary angiographies (ICAs). However, the diagnostic accuracy of perfusion scans after primary CCTA is unknown. The aim of this study was to determine the diagnostic accuracy of cardiac magnetic resonance (CMR) and myocardial perfusion scintigraphy (MPS) against ICA with fractional flow reserve (FFR) in patients suspected of CAD by CCTA. Methods and results: Included were consecutive patients (1675) referred to CCTA with symptoms of CAD and low/intermediate risk profile. Patients with suspected CAD based on CCTA were randomized 1:1 to CMR or MPS followed by ICA with FFR. Obstructive CAD was defined as FFR ≤ 0.80 or > 90% diameter stenosis by visual assessment. After initial CCTA, 392 patients (23%) were randomized; 197 to CMR and 195 to MPS. Perfusion scans and ICA were completed in 292 patients (CMR 148, MPS 144). Based on the ICA, 117/292 (40%) patients were classified with CAD. Sensitivity, specificity, negative predictive value (NPV), and positive predictive value (PPV) for CMR were 41%, 95% CI [28-54], 84% [75-91], 62% [45-78], and 68% [58-76], respectively. For the MPS group 36% [24-50], 94% [87-98], 81% [61-93], and 68% [59-76], respectively. Conclusion: Patients with low/intermediate CAD risk and a positive CCTA scan represent a challenge to perfusion techniques indicated by the low sensitivity of both CMR and MPS with FFR as a reference. The mechanisms underlying this discrepancy need further investigation.


Assuntos
Angiografia por Tomografia Computadorizada/métodos , Angiografia Coronária/métodos , Doença da Artéria Coronariana/diagnóstico por imagem , Imagem Cinética por Ressonância Magnética/métodos , Imagem de Perfusão do Miocárdio/métodos , Idoso , Doença da Artéria Coronariana/fisiopatologia , Feminino , Reserva Fracionada de Fluxo Miocárdico/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Sensibilidade e Especificidade
7.
Acta Psychiatr Scand ; 135(6): 564-572, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28466972

RESUMO

OBJECTIVE: Insight on how different missions have impacted rates of mental health service (MHS) utilization is unexplored. We compared postdeployment MHS utilization in a national cohort of first-time deployed to missions in Balkan, Iraq, and Afghanistan respectively. METHODS: A prospective national cohort study of 13 246 first-time deployed in the period 1996 through 2012 to missions in Balkan area, Iraq, or Afghanistan respectively. Soldiers 'MHS utilization was also compared with a 5:1 sex-, age-, and calendar year-matched never-deployed background population. Postdeployment utilization of MHS was retrieved from national coverage registers. Using Cox survival analyses, participants were followed and compared with regard to receiving three different types of psychiatric services: (i) admission to psychiatric hospital, (ii) psychiatric outpatient contact, and (iii) prescriptions of psychotropics. RESULTS: Utilizing of psychiatric outpatient services and psychotropics was significantly higher in first-time deployed to Iraq and Afghanistan compared with deployed to Balkan. However, the rate of postdeployment admission to psychiatric hospital did not differ between missions. Postdeployment rates of psychiatric admission and psychiatric outpatient treatment were significantly higher in Afghanistan-deployed personnel compared with the background population. CONCLUSIONS: Utilization of MHS differed significantly between mission areas and was highest after the latest mission to Afghanistan.


Assuntos
Campanha Afegã de 2001- , Guerra do Iraque 2003-2011 , Serviços de Saúde Mental/estatística & dados numéricos , Militares/psicologia , Adulto , Península Balcânica , Dinamarca/epidemiologia , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Militares/estatística & dados numéricos , Modelos de Riscos Proporcionais , Estudos Prospectivos , Guerra , Adulto Jovem
8.
J R Army Med Corps ; 162(5): 348-351, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26475797

RESUMO

INTRODUCTION: Non-battle injuries have been the leading cause of medical evacuation in the recent wars in Afghanistan and Iraq. This study investigates the hypothesis, that the occurrence of knee problems could be associated with mounted patrolling in armoured vehicles independent of other risk factors. METHOD: Retrospective questionnaire-based cohort study of Danish soldiers deployed to Afghanistan during 1 February-31 July 2013. RESULTS: 307 soldiers included. Response rate 70%. 33% reported knee pain. MAIN FINDING: Significant association between knee pain and time spent weekly on mounted patrols (OR 1.23, CI 1.07 to 1.41, p=0.003). Controlled for confounders age, body mass index and duration of military employment (OR 1.22, CI 1.06 to 1.41, p=0.006). Adjusted for confounders and all other risk factors (OR 1.25, CI 1.07 to 1.48, p=0.007). The main finding in a subset of the 33% with knee pain: Significant association between more severe knee problems with Knee injury and Osteoarthritis Outcome Score below 400 and time spent weekly on mounted patrols (OR 1.49, CI 1.17 to 1.56, p=0.002). CONCLUSIONS: A major concern regarding knee problems among Danish deployed military personnel is identified. The risk of suffering from knee problems and the severity of symptoms increase with the amount of time spent inside a vehicle on mounted patrols.


Assuntos
Artralgia/epidemiologia , Articulação do Joelho , Militares/estatística & dados numéricos , Veículos Automotores , Exposição Ocupacional/estatística & dados numéricos , Postura , Adulto , Campanha Afegã de 2001- , Estudos de Coortes , Dinamarca/epidemiologia , Feminino , Humanos , Masculino , Estudos Retrospectivos , Fatores de Risco , Índice de Gravidade de Doença , Inquéritos e Questionários , Fatores de Tempo , Adulto Jovem
9.
Res Social Adm Pharm ; 12(3): 496-508, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26385722

RESUMO

BACKGROUND: The Australian Pharmacy Practice Framework was developed by the Advanced Pharmacy Practice Steering Committee and endorsed by the Pharmacy Board of Australia in October 2012. The Steering Committee conducted a study that found practice portfolios to be the preferred method to assess and credential Advanced Pharmacy Practitioner, which is currently being piloted by the Australian Pharmacy Council. Credentialing is predicted to open to all pharmacists practising in Australia by November 2015. OBJECTIVE: To explore how Australian pharmacists self-perceived being advanced in practice and how they related their level of practice to the Australian Advanced Pharmacy Practice Framework. METHOD: This was an explorative, cross-sectional study with mixed methods analysis. Advanced Pharmacy Practice Framework, a review of the recent explorative study on Advanced Practice conducted by the Advanced Pharmacy Practice Framework Steering Committee and semi-structured interviews (n = 10) were utilized to create, refine and pilot the questionnaire. The questionnaire was advertised across pharmacy-organizational websites via a purposive sampling method. The target population were pharmacists currently registered in Australia. RESULTS: Seventy-two participants responded to the questionnaire. The participants were mostly female (56.9%) and in the 30-40 age group (26.4%). The pharmacists self-perceived their levels of practice as either entry, transition, consolidation or advanced, with the majority selecting the consolidation level (38.9%). Although nearly half (43.1%) of the participants had not seen the Framework beforehand, they defined Advanced Pharmacy Practice similarly to the definition outlined in the Framework, but also added specialization as a requirement. Pharmacists explained why they were practising at their level of practice, stating that not having more years of practice, lacking experience, or postgraduate/post-registration qualifications, and more involvement and recognition in practice were the main reasons for not considering themselves as an Advanced Pharmacy Practitioner. To be considered advanced by the Framework, pharmacists would need to fulfill at least 70% of the Advanced Practice competency standards at an advanced level. More than half of the pharmacists (64.7%) that self-perceived as being advanced managed to fulfill 70% or more of these Advanced Practice competency standards at the advanced level. However, none of the self-perceived entry level pharmacists managed to match at least 70% of the competencies at the entry level. CONCLUSION: Participants' self-perception of the term Advanced Practice was similar to the definition in the Advanced Pharmacy Practice Framework. Pharmacists working at an advanced level were largely able to demonstrate and justify their reasons for being advanced practitioners. However, pharmacists practising at the other levels of practice (entry, transition, consolidation) require further guidance regarding their advancement in practice.


Assuntos
Farmacêuticos , Competência Profissional , Autoimagem , Acreditação , Adulto , Austrália , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Farmácias , Inquéritos e Questionários , Adulto Jovem
11.
QJM ; 106(10): 969-75, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23824943

RESUMO

Older populations are more likely to have multiple co-morbid diseases that require multiple treatments, which make them a large consumer of medications. As a person grows older, their ability to tolerate medications becomes less due to age-related changes in pharmacokinetics and pharmacodynamics often heading along a path that leads to frailty. Frail older persons often have multiple co-morbidities with signs of impairment in activities of daily living. Prescribing drugs for these vulnerable individuals is difficult and is a potentially unsafe activity. Inappropriate prescribing in older population can be detected using explicit (criterion-based) or implicit (judgment-based) criteria. Unfortunately, most current therapeutic guidelines are applicable only to healthy older adults and cannot be generalized to frail patients. These discrepancies should be addressed either by developing new criteria or by refining the existing tools for frail older people. The first and foremost step is to identify the frail patient in clinical practice by applying clinically validated tools. Once the frail patient has been identified, there is a need for specific measures or criteria to assess appropriateness of therapy that consider such factors as quality of life, functional status and remaining life expectancy and thus modified goals of care.


Assuntos
Idoso Fragilizado , Avaliação Geriátrica/métodos , Prescrição Inadequada/ética , Prescrição Inadequada/legislação & jurisprudência , Medicamentos sob Prescrição/uso terapêutico , Fatores Etários , Idoso de 80 Anos ou mais , Comorbidade , Humanos , Expectativa de Vida , Medicamentos sob Prescrição/efeitos adversos , Qualidade de Vida
12.
BMJ Open ; 3(7)2013.
Artigo em Inglês | MEDLINE | ID: mdl-23847268

RESUMO

OBJECTIVES: Current evidence to support non-medical prescribing is predominantly qualitative, with little evaluation of accuracy, safety and appropriateness. Our aim was to evaluate a new model of service for the Australia healthcare system, of inpatient medication prescribing by a pharmacist in an elective surgery preadmission clinic (PAC) against usual care, using an endorsed performance framework. DESIGN: Single centre, randomised controlled, two-arm trial. SETTING: Elective surgery PAC in a Brisbane-based tertiary hospital. PARTICIPANTS: 400 adults scheduled for elective surgery were randomised to intervention or control. INTERVENTION: A pharmacist generated the inpatient medication chart to reflect the patient's regular medication, made a plan for medication perioperatively and prescribed venous thromboembolism (VTE) prophylaxis. In the control arm, the medication chart was generated by the Resident Medical Officers. OUTCOME MEASURES: Primary outcome was frequency of omissions and prescribing errors when compared against the medication history. The clinical significance of omissions was also analysed. Secondary outcome was appropriateness of VTE prophylaxis prescribing. RESULTS: There were significantly less unintended omissions of medications: 11 of 887 (1.2%) intervention orders compared with 383 of 1217 (31.5%) control (p<0.001). There were significantly less prescribing errors involving selection of drug, dose or frequency: 2 in 857 (0.2%) intervention orders compared with 51 in 807 (6.3%) control (p<0.001). Orders with at least one component of the prescription missing, incorrect or unclear occurred in 208 of 904 (23%) intervention orders and 445 of 1034 (43%) controls (p<0.001). VTE prophylaxis on admission to the ward was appropriate in 93% of intervention patients and 90% controls (p=0.29). CONCLUSIONS: Medication charts in the intervention arm contained fewer clinically significant omissions, and prescribing errors, when compared with controls. There was no difference in appropriateness of VTE prophylaxis on admission between the two groups. TRIAL REGISTRATION: Registered with ANZCTR-ACTR Number ACTRN12609000426280.

13.
J R Army Med Corps ; 159(2): 119-22, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23720595

RESUMO

BACKGROUND: Most of the emergency care delivered in Afghanistan is currently provided by the military sector and non-governmental organisations. Main Operating Base (MOB) Price in Helmand Province has a small medical centre and due to its location provides critical care to civilians and military casualties and this article describes the patterns in trauma patient care at the MOB Price medical centre regarding the types of patients and injuries. MATERIALS AND METHODS: The study population consists of 64 consecutive critically injured patients treated in MOB Price during a 4-month period from September to December 2010. The outcomes were battle-related injuries, treatment received before arriving to MOB Price, types of injury and treatment. RESULTS: There were 35 civilians (12 children and 23 adults), 28 Afghan National Security Forces and one International Security Assistance Force soldier; they were divided into three groups (civilian adults, civilian children and military). 22% of the patients suffered fragmentation injuries and civilians were more likely to incur fragment injury than military personnel (OR (95% CI) 7.04 (1.4 to 34.8)). Regarding intubation, there was a trend towards more civilians needing it than military personnel and significantly more children than adults underwent intubation (OR (95% Cl) 51 (5.2 to 498.5)). Gunshot wounds (GSW) occurred in 30% of the patients. Civilians patients had a lower OR for GSWs than military patients (OR (95% CI) 0.35 (0.1 to 1.1)). Other trends in injury types and treatment were apparent but did not reach significance due to the small number of patients. CONCLUSIONS: Both civilians and military personnel benefitted from the in-theatre Role 1 medical facility treatment. The most frequent injuries were fragmentation damage and GSW.


Assuntos
Medicina Militar , Ferimentos e Lesões/terapia , Adulto , Campanha Afegã de 2001- , Criança , Cuidados Críticos , Dinamarca , Humanos , Intubação Intratraqueal/estatística & dados numéricos , Militares/estatística & dados numéricos , Ferimentos e Lesões/epidemiologia
15.
J Clin Pharm Ther ; 33(5): 553-9, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18834371

RESUMO

BACKGROUND: Pharmaceuticals are big business, reporting strong market growth year after year. The 'gatekeepers' of this market are prescribers of medicines, who are the major target of pharmaceutical companies, utilizing direct and indirect influences. METHODS: This paper draws on previous research investigating pharmaceutical company prescribing influences to develop a qualitative model demonstrating the synergism between commercial influences on prescribing. The generic model was used to explore a realistic but hypothetical scenario to ascertain the applicability of the model. RESULTS AND DISCUSSION: A generic influence model was developed. The model was readily able to be adapted to reflect a realistic practice scenario. CONCLUSION: Prescriber awareness of the linkages between various seemingly separate marketing techniques could potentially improve medicines usage in an evidence-based practice paradigm.


Assuntos
Publicidade/métodos , Indústria Farmacêutica/organização & administração , Modelos Organizacionais , Padrões de Prática Médica/normas , Publicidade/legislação & jurisprudência , Indústria Farmacêutica/economia , Medicina Baseada em Evidências/economia , Medicina Baseada em Evidências/organização & administração , Humanos , Nova Zelândia , Médicos/psicologia , Medicamentos sob Prescrição/economia , Medicamentos sob Prescrição/uso terapêutico , Qualidade da Assistência à Saúde/economia , Qualidade da Assistência à Saúde/organização & administração , Estados Unidos
16.
Hum Reprod ; 21(9): 2359-63, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16684844

RESUMO

BACKGROUND: Chlamydia trachomatis is more prevalent in subfertile women than in the general population and is the leading cause of tubal factor subfertility. As C. trachomatis infections are sexually transmitted, it can be expected that infections with human papillomavirus (HPV) are also more prevalent in this group of women. HPV is a necessary cause for the development of cervical (pre-)malignancies. We therefore hypothesized that subfertile women are more likely to have HPV-induced cervical abnormalities compared to the general population. METHODS: In this retrospective case-control study, all cervical smears of women visiting the fertility clinic for IVF (cases) and of women attending the population-based screening programme for cervical cancer (controls) were retrieved from an electronic database and assessed. RESULTS: The cases (n = 669) showed significantly more abnormal cervical smears compared to the controls (77,055) (6.1 and 3.9%, respectively, P < 0.02). CONCLUSIONS: The probability that subfertile women eligible for IVF are diagnosed with a high-grade cervical lesion is almost twice as high compared to women in the general population. We therefore suggest to take a cervical smear from all women referred for fertility problems.


Assuntos
Colo do Útero/citologia , Colo do Útero/patologia , Infecções por Chlamydia/patologia , Fertilização in vitro/métodos , Infertilidade Feminina/virologia , Adulto , Estudos de Casos e Controles , Infecções por Chlamydia/metabolismo , Chlamydia trachomatis/metabolismo , Feminino , Humanos , Infertilidade Feminina/complicações , Infertilidade Feminina/metabolismo , Masculino , Modelos Estatísticos , Estudos Retrospectivos , Esfregaço Vaginal
17.
Proc Natl Acad Sci U S A ; 102(43): 15593-8, 2005 Oct 25.
Artigo em Inglês | MEDLINE | ID: mdl-16230630

RESUMO

Lymphangiogenesis is an important process that contributes to the spread of cancer. Here we show that insulin-like growth factors 1 (IGF-1) and 2 (IGF-2) induce lymphangiogenesis in vivo. In a mouse cornea assay, IGF-1 and IGF-2 induce lymphangiogenesis as detected with LYVE-1, a specific marker for lymphatic endothelium. Interestingly, IGF-1-induced lymphangiogenesis could not be blocked by a soluble vascular endothelial growth factor receptor 3, suggesting that the vascular endothelial growth factor receptor 3-signaling pathway is not required for IGF-induced lymphangiogenesis. In vitro, IGF-1 and IGF-2 significantly stimulated proliferation and migration of primary lymphatic endothelial cells. IGF-1 and IGF-2 induced phosphorylation of intracellular signaling components, such as Akt, Src, and extracellular signal-regulated kinase in lymphatic endothelial cells. Immunohistochemistry, RT-PCR, and Affymetrix GeneChip microarray analysis showed that the receptors for IGFs are present in lymphatic endothelium. Together, our findings suggest that IGFs might act as direct lymphangiogenic factors, although any indirect roles in the induction of lymphangiogenesis cannot be excluded. Because members of the IGF ligand and receptor families are widely expressed in various types of solid tumors, our findings suggest that these factors are likely to contribute to lymphatic metastasis.


Assuntos
Fator de Crescimento Insulin-Like II/farmacologia , Fator de Crescimento Insulin-Like I/farmacologia , Linfangiogênese/efeitos dos fármacos , Animais , Endotélio Linfático/efeitos dos fármacos , Endotélio Linfático/fisiologia , Feminino , Humanos , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Receptor IGF Tipo 1/análise , Receptor IGF Tipo 2/análise , Fator C de Crescimento do Endotélio Vascular/fisiologia , Fator D de Crescimento do Endotélio Vascular/fisiologia , Receptor 3 de Fatores de Crescimento do Endotélio Vascular/fisiologia
18.
Genes Dev ; 17(16): 2048-59, 2003 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-12923055

RESUMO

Members of the POU and SOX transcription factor families exemplify the partnerships established between various transcriptional regulators during early embryonic development. Although functional cooperativity between key regulator proteins is pivotal for milestone decisions in mammalian development, little is known about the underlying molecular mechanisms. In this study, we focus on two transcription factors, Oct4 and Sox2, as their combination on DNA is considered to direct the establishment of the first three lineages in the mammalian embryo. Using experimental high-resolution structure determination, followed by model building and experimental validation, we found that Oct4 and Sox2 were able to dimerize onto DNA in distinct conformational arrangements. We demonstrate that the DNA enhancer region of their target genes is responsible for the correct spatial alignment of glue-like interaction domains on their surface. Interestingly, these surfaces frequently have redundant functions and are instrumental in recruiting various interacting protein partners.


Assuntos
Proteínas de Ligação a DNA/metabolismo , DNA/química , DNA/metabolismo , Proteínas de Grupo de Alta Mobilidade/química , Proteínas de Grupo de Alta Mobilidade/metabolismo , Proteínas Nucleares/metabolismo , Fatores de Transcrição , Animais , Sequência de Bases , Proteínas Cromossômicas não Histona , Cristalografia por Raios X , DNA/genética , Elementos Facilitadores Genéticos , Escherichia coli/genética , Escherichia coli/metabolismo , Fatores de Crescimento de Fibroblastos/química , Fatores de Crescimento de Fibroblastos/metabolismo , Proteínas HMGB , Proteínas de Grupo de Alta Mobilidade/genética , Humanos , Camundongos , Modelos Moleculares , Mutação , Conformação de Ácido Nucleico , Fator 3 de Transcrição de Octâmero , Conformação Proteica , Fatores de Transcrição SOXB1 , Transativadores/química , Transativadores/metabolismo , Ativação Transcricional
19.
EMBO J ; 21(13): 3245-54, 2002 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-12093726

RESUMO

The crystal structure of the dimeric anthranilate phosphoribosyltransferase (AnPRT) reveals a new category of phosphoribosyltransferases, designated as class III. The active site of this enzyme is located within the flexible hinge region of its two-domain structure. The pyrophosphate moiety of phosphoribosylpyrophosphate is co-ordinated by a metal ion and is bound by two conserved loop regions within this hinge region. With the structure of AnPRT available, structural analysis of all enzymatic activities of the tryptophan biosynthesis pathway is complete, thereby connecting the evolution of its enzyme members to the general development of metabolic processes. Its structure reveals it to have the same fold, topology, active site location and type of association as class II nucleoside phosphorylases. At the level of sequences, this relationship is mirrored by 13 structurally invariant residues common to both enzyme families. Taken together, these data imply common ancestry of enzymes catalysing reverse biological processes--the ribosylation and deribosylation of metabolic pathway intermediates. These relationships establish new links for enzymes involved in nucleotide and amino acid metabolism.


Assuntos
Antranilato Fosforribosiltransferase/química , Proteínas de Bactérias/química , Evolução Molecular , Pentosiltransferases/química , Pentosiltransferases/classificação , Sequência de Aminoácidos , Antranilato Fosforribosiltransferase/genética , Proteínas Arqueais/química , Proteínas Arqueais/genética , Proteínas de Bactérias/genética , Sítios de Ligação , Escherichia coli/enzimologia , Proteínas de Escherichia coli/química , Geobacillus stearothermophilus/enzimologia , Magnésio/metabolismo , Dados de Sequência Molecular , Pentosiltransferases/genética , Estrutura Terciária de Proteína , Pirimidina Fosforilases , Alinhamento de Sequência , Especificidade da Espécie , Sulfolobus/enzimologia , Timidina Fosforilase/química , Triptofano/biossíntese
20.
Br J Clin Pharmacol ; 52(6): 693-8, 2001 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-11736881

RESUMO

AIMS: This study evaluated the use of and need for opioids in patients attending the Multidisciplinary Pain Centre at the Royal Brisbane Hospital (RBH). METHODS: All consecutive in-patient admissions in 1998 were reviewed. A 10-point scoring system based on the World Health Organization (WHO) analgesic ladder was devised to facilitate comparison of analgesic prescribing on admission and at the time of discharge. A conversion table was used to standardize opioid analgesic doses to an oral morphine equivalent. RESULTS: Of the 370 patients reviewed, 233 (81%) were by their general practitioners. Records of 288 (78%) were available for full review and 270 (94%) of these had noncancer pain. On admission, 239 (83%) were taking an opioid analgesic, with 135 (47%) taking strong opioids (e.g. morphine, oxycodone, methadone). There was a significant decrease in the mean total daily oral morphine equivalent prescribed on discharge 36.9 mg (95% CI: 33.4, 40.4) compared with that on admission 88.7 mg (95% CI: 77.6, 99.8) (P < 0.001). There was a significant decrease (P < 0.05) in the proportion of patients taking a primary opioid on discharge 153 (58%) compared with admission 239 (83%), although the proportion of patients taking a strong opioid on discharge 150 (52%) compared with admission 135 (47%) was not significantly different (P > 0.05). The proportion of patients taking a laxative showed a significant increase on discharge 110 (73%) compared with admission 38 (28%) (P < 0.05). CONCLUSIONS: Our analgesic prescribing scoring system and opioid conversion table have the potential to be developed further as tools for assessing opioid analgesic prescribing. The significant decrease in total daily oral morphine equivalents signifies the value of prescribing in accordance with the WHO analgesic ladder, and the necessity of general practitioner education. The management of chronic pain is complex, and it requires interventions additional to pharmacological therapy. Evaluation by a multidisciplinary team, coupled with experience in and an understanding of analgesic prescribing and rehabilitation provides an effective basis for improving the management of patients with chronic pain.


Assuntos
Analgésicos Opioides/uso terapêutico , Prescrições de Medicamentos/estatística & dados numéricos , Morfina/uso terapêutico , Dor/tratamento farmacológico , Acetaminofen/uso terapêutico , Analgésicos Opioides/administração & dosagem , Austrália , Catárticos/uso terapêutico , Quimioterapia Adjuvante , Simulação por Computador , Revisão de Uso de Medicamentos/estatística & dados numéricos , Humanos , Morfina/normas , Médicos de Família/estatística & dados numéricos , Estudos Retrospectivos , Organização Mundial da Saúde
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