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1.
BMC Med Res Methodol ; 24(1): 109, 2024 May 04.
Artigo em Inglês | MEDLINE | ID: mdl-38704520

RESUMO

BACKGROUND: During the COVID-19 pandemic, many intensive care units (ICUs) halted research to focus on COVID-19-specific studies. OBJECTIVE: To describe the conduct of an international randomized trial of stress ulcer prophylaxis (Re-Evaluating the Inhibition of Stress Erosions in the ICU [REVISE]) during the pandemic, addressing enrolment patterns, center engagement, informed consent processes, data collection, a COVID-specific substudy, patient transfers, and data monitoring. METHODS: REVISE is a randomized trial among mechanically ventilated patients, comparing pantoprazole 40 mg IV to placebo on the primary efficacy outcome of clinically important upper gastrointestinal bleeding and the primary safety outcome of 90-day mortality. We documented protocol implementation status from March 11th 2020-August 30th 2022. RESULTS: The Steering Committee did not change the scientific protocol. From the first enrolment on July 9th 2019 to March 10th 2020 (8 months preceding the pandemic), 267 patients were enrolled in 18 centers. From March 11th 2020-August 30th 2022 (30 months thereafter), 41 new centers joined; 59 were participating by August 30th 2022 which enrolled 2961 patients. During a total of 1235 enrolment-months in the pandemic phase, enrolment paused for 106 (8.6%) months in aggregate (median 3 months, interquartile range 2;6). Protocol implementation involved a shift from the a priori consent model pre-pandemic (188, 58.8%) to the consent to continue model (1615, 54.1%, p < 0.01). In one new center, an opt-out model was approved. The informed consent rate increased slightly (80.7% to 85.0%, p = 0.05). Telephone consent encounters increased (16.6% to 68.2%, p < 0.001). Surge capacity necessitated intra-institutional transfers; receiving centers continued protocol implementation whenever possible. We developed a nested COVID-19 substudy. The Methods Centers continued central statistical monitoring of trial metrics. Site monitoring was initially remote, then in-person when restrictions lifted. CONCLUSION: Protocol implementation adaptations during the pandemic included a shift in the consent model, a sustained high consent rate, and launch of a COVID-19 substudy. Recruitment increased as new centers joined, patient transfers were optimized, and monitoring methods were adapted.


Assuntos
COVID-19 , Humanos , COVID-19/prevenção & controle , COVID-19/epidemiologia , Pantoprazol/uso terapêutico , SARS-CoV-2 , Unidades de Terapia Intensiva/estatística & dados numéricos , Pandemias/prevenção & controle , Feminino , Respiração Artificial/estatística & dados numéricos , Masculino , Protocolos Clínicos , Pessoa de Meia-Idade , Hemorragia Gastrointestinal/prevenção & controle , Antiulcerosos/uso terapêutico , Antiulcerosos/administração & dosagem
2.
Eat Disord ; 30(2): 182-209, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-33131458

RESUMO

The research presented here evaluates the delivery of Happy Being Me (HBM; Dunstan, Paxton & McLean, 2017) with boys and girls in their first year of secondary school in the UK (Year 7 and after comparisons aged 11-12). HBM is a manualised universal prevention programme which aims to improve body dissatisfaction and associated risk factors. Risk factors studied here were internalization of the thin ideal, physical appearance comparisons, appearance conversations. Secondary outcomes measured were self-esteem and eating disorder symptomsStudy 1 tested the effectiveness of HBM (n = 172) compared to a control group (n = 197) who received curriculum as usual. HBM resulted in significantly improved body satisfaction post-intervention which was maintained at follow up. There were no significant changes in risk factors.Study 2 compared clinician (n = 172) and teacher (n = 174) delivery. Students who received clinician-led, but not teacher-led, HBM had improved body satisfaction and this was maintained at follow up. Internalization of the thin ideal and self-esteem, improved in both clinician and teacher-led groups with small to medium sized effects. HBM can be delivered by clinicians independent of programme developers in a heterogeneous sample with positive effects on body satisfaction. Issues arising for wider delivery are discussed.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos , Satisfação Pessoal , Imagem Corporal , Transtornos da Alimentação e da Ingestão de Alimentos/prevenção & controle , Feminino , Humanos , Masculino , Instituições Acadêmicas , Autoimagem
3.
Curr Opin Anaesthesiol ; 28(3): 349-55, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25887192

RESUMO

PURPOSE OF REVIEW: The indications for aspirin (ASA) for both primary and secondary prevention of thrombotic events continue to evolve. We review some of these indications and the recent literature regarding the perioperative administration of ASA. RECENT FINDINGS: ASA for primary prevention of cardiac ischemia, stroke, cancer, and death remains controversial. When used for primary prevention, ASA may be safely discontinued perioperatively. Patients with coronary or carotid artery stents should continue to receive ASA perioperatively. For patients with ischemic heart disease currently receiving ASA for secondary prevention of cardiac ischemia and stroke undergoing general surgery, orthopedic surgery, ophthalmological surgery, cardiovascular surgery, major vascular surgery, or a urological procedure, continuation of ASA is probably well tolerated, but further study is required. There is no indication to initiate ASA perioperatively in patients with stable ischemic heart disease as the risks outweigh the benefits. Until further data become available, decisions regarding the perioperative continuation of ASA should be made on a case-by-case risk-benefit analysis. SUMMARY: The continuation or discontinuation of ASA perioperatively remains a complicated issue. Further, well designed trials are needed for additional clarification.


Assuntos
Aspirina/uso terapêutico , Assistência Perioperatória/métodos , Inibidores da Agregação Plaquetária/uso terapêutico , Complicações Pós-Operatórias/prevenção & controle , Tromboembolia/prevenção & controle , Interações Medicamentosas , Humanos , Complicações Intraoperatórias/prevenção & controle , Período Perioperatório
4.
Telemed J E Health ; 16(1): 103-6, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20155874

RESUMO

Telehealth applications are increasingly important in many areas of health education and training. In addition, they will play a vital role in biomedical research and research training by facilitating remote collaborations and providing access to expensive/remote instrumentation. In order to fulfill their true potential to leverage education, training, and research activities, innovations in telehealth applications should be fostered across a range of technology fronts, including online, on-demand computational models for simulation; simplified interfaces for software and hardware; software frameworks for simulations; portable telepresence systems; artificial intelligence applications to be applied when simulated human patients are not options; and the development of more simulator applications. This article presents the results of discussion on potential areas of future development, barries to overcome, and suggestions to translate the promise of telehealth applications into a transformed environment of training, education, and research in the health sciences.


Assuntos
Educação em Saúde , Internet , Telemedicina/organização & administração , Inteligência Artificial , Comportamento Cooperativo , Humanos , Capacitação em Serviço , Pesquisa , Interface Usuário-Computador
5.
Food Chem Toxicol ; 138: 111236, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32135216

RESUMO

With the Food Additives Amendment of 1958 the U.S. Congress established the pre-market approval requirement for food additives unless such food ingredients were "generally recognized as safe" (GRAS). Beginning in 2010 with the publication of an audit by the U.S. Government Accountability Office, the GRAS provision has received much attention from regulators and policy-makers, the media, and non-governmental organizations. This report provides an overview and update of the policies, procedures, and scope of the GRAS program for flavor ingredients sponsored by the Flavor and Extract Manufacturers Association of the United States (FEMA), and its alignment with the requirements for GRAS conclusions established by Congress and FDA.


Assuntos
Aromatizantes/normas , Aditivos Alimentares/normas , Inocuidade dos Alimentos , Indústria Alimentícia/normas , Humanos , Saúde Pública , Estados Unidos , United States Food and Drug Administration
6.
BMJ Open ; 10(5): e038300, 2020 05 11.
Artigo em Inglês | MEDLINE | ID: mdl-32398341

RESUMO

INTRODUCTION: Bloodstream infections are a leading cause of mortality and morbidity; the duration of treatment for these infections is understudied. METHODS AND ANALYSIS: We will conduct an international, multicentre randomised clinical trial of shorter (7 days) versus longer (14 days) antibiotic treatment among hospitalised patients with bloodstream infections. The trial will include 3626 patients across 60 hospitals and 6 countries. We will include patients with blood cultures confirming a pathogenic bacterium after hospital admission. Exclusion criteria will include patient factors (severe immunosuppression), infection site factors (endocarditis, osteomyelitis, undrained abscesses, infected prosthetic material) and pathogen factors (Staphylococcus aureus, Staphylococcus lugdunensis, Candida and contaminant organisms). We will leave the selection of specific antibiotics, doses and route of delivery to the discretion of treating physicians; no placebo control will be used given the diversity of pathogens and sources of bacteraemia. The intervention will be assignment of treatment duration to be 7 versus 14 days. We will minimise selection bias via central randomisation with variable block sizes, with concealed allocation until day 7 of adequate antibiotic treatment. The primary outcome is 90-day survival; we will test whether 7 days is non-inferior to 14 days of treatment, with a non-inferiority margin of 4% absolute mortality. Secondary outcomes include hospital and intensive care unit (ICU) mortality, relapse rates of bacteraemia, hospital and ICU length of stay, mechanical ventilation and vasopressor duration, antibiotic-free days, Clostridium difficile infection, antibiotic allergy and adverse events and colonisation/infection with antibiotic-resistant organisms. ETHICS AND DISSEMINATION: The study has been approved by the ethics review board at each participating site. Sunnybrook Health Sciences Centre is the central ethics committee. We will disseminate study results via the Canadian Critical Care Trials Group and other collaborating networks to set the global paradigm for antibiotic treatment duration for non-staphylococcal Gram-positive, Gram-negative and anaerobic bacteraemia, among patients admitted to hospital. TRIAL REGISTRATION NUMBER: The BALANCE (Bacteremia Antibiotic Length Actually Needed for Clinical Effectiveness) trial was registered at www.clinicaltrials.gov (registration number: NCT03005145).


Assuntos
Antibacterianos/uso terapêutico , Bacteriemia/tratamento farmacológico , Infecção Hospitalar/tratamento farmacológico , Antibacterianos/administração & dosagem , Bacteriemia/mortalidade , Infecção Hospitalar/mortalidade , Esquema de Medicação , Humanos , Recidiva , Viés de Seleção , Resultado do Tratamento
7.
Ann Intern Med ; 141(4): 305-13, 2004 Aug 17.
Artigo em Inglês | MEDLINE | ID: mdl-15313747

RESUMO

BACKGROUND: Ventilator-associated pneumonia (VAP) is an important patient safety issue in critically ill patients. PURPOSE: To develop an evidence-based guideline for the prevention of VAP. DATA SOURCES: MEDLINE, EMBASE, and the Cochrane Database of Systematic Reviews. STUDY SELECTION: The authors systematically searched for relevant randomized, controlled trials and systematic reviews that involved mechanically ventilated adults and were published before 1 April 2003. DATA EXTRACTION: Physical, positional, and pharmacologic interventions that may influence the development of VAP were considered. Independently and in duplicate, the authors scored the validity of trials; the effect size and confidence intervals; the homogeneity of results; and safety, feasibility, and economic issues. DATA SYNTHESIS: Recommended: The orotracheal route of intubation, changes of ventilator circuits only for each new patient and if the circuits are soiled, use of closed endotracheal suction systems that are changed for each new patient and as clinically indicated, heat and moisture exchangers in the absence of contraindications, weekly changes of heat and moisture exchangers, and semi-recumbent positioning in the absence of contraindications. Consider subglottic secretion drainage and kinetic beds. Not recommended: Sucralfate to prevent VAP in patients at high risk for gastrointestinal bleeding and topical antibiotics to prevent VAP. Because of insufficient or conflicting evidence, no recommendations were made about systematically searching for maxillary sinusitis, chest physiotherapy, the timing of tracheostomy, prone positioning, prophylactic intravenous antibiotics, or intravenous plus topical antibiotics. LIMITATIONS: No formal economic analysis was performed, and patient perspectives were not considered. CONCLUSION: If effectively implemented, this guideline may decrease the morbidity, mortality, and costs of VAP in mechanically ventilated patients.


Assuntos
Pneumonia/prevenção & controle , Respiração Artificial/efeitos adversos , Antibioticoprofilaxia , Humanos , Pneumonia/etiologia , Respiração Artificial/métodos
9.
Obstet Gynecol ; 99(6): 1044-8, 2002 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12052597

RESUMO

OBJECTIVE: To compare the safety and effectiveness of vaginal with oral misoprostol for induction of labor. METHODS: A total of 107 women with clinical indication for induction were randomly assigned to receive oral or vaginal misoprostol. Doses of 100 microg of oral or 25 microg of vaginal misoprostol were given every 3-4 hours. If cervical ripening or active labor did not occur, repeated doses of oral (100-200 microg) or vaginal (25-50 microg) were given until labor was established. RESULTS: Fifty-nine women received oral misoprostol, and 48 received vaginal administration. Delivery time was similar for the vaginal and oral arms (1074 +/- 488 minutes versus 930 +/- 454 minutes, P =.11). Parity was significantly different (P =.04) for the vaginal and oral groups. The cesarean delivery rate was similar for the vaginal and oral arms (17% versus 15%, P =.72). The number of medication administrations was consistent between groups. Birth weight was not different for patients in the control and treatment groups (vaginal 3281 +/- 507 g versus oral 3359 +/- 541 g, P =.44). Chorioamnionitis and tachysystole were comparable for the oral and vaginal groups. There was no statistical difference in neonatal outcomes. Similar proportions of infants were admitted to the well baby nursery and intermediate care nursery. CONCLUSION: These findings indicate that, in a closely supervised hospital setting with adequate monitoring, oral misoprostol has the potential to induce labor as safely and effectively as its vaginal analogue.


Assuntos
Trabalho de Parto Induzido , Misoprostol/administração & dosagem , Ocitócicos/administração & dosagem , Administração Intravaginal , Administração Oral , Adulto , Maturidade Cervical , Feminino , Humanos , Gravidez , Resultado do Tratamento
10.
Am J Disaster Med ; 2(5): 270-6, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-18491842

RESUMO

The 1995 Kikwit Ebola outbreak in the Democratic Republic of the Congo is one of the first Ebola outbreaks to be treated in a hospital setting and is one of the most well-studied Ebola epidemics to have occurred to date. Many of the lessons learned from identifying, containing, and treating the epidemic are applicable to future viral outbreaks. This article looks at the characteristics of the Ebola virus and health system issues, which affected the healthcare providers' ability to contain and treat the virus. It specifically examines factors such as the disease characteristics, surge capacity, supply issues, press involvement, and the involvement of voluntary organizations.


Assuntos
Planejamento em Desastres , Surtos de Doenças/prevenção & controle , Ebolavirus/fisiologia , Recursos em Saúde/provisão & distribuição , Doença pelo Vírus Ebola/epidemiologia , Doença pelo Vírus Ebola/prevenção & controle , República Democrática do Congo/epidemiologia , Doença pelo Vírus Ebola/diagnóstico , Humanos
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