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1.
J Nurs Educ ; 63(1): 24-31, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38227323

RESUMO

BACKGROUND: Health professions (HP) students must achieve durable learning (DL) to transfer and apply knowledge from the classroom to the clinical setting. This review examines the state of the science of classroom-based DL in HP. METHOD: The Joanna Briggs Systematic Review Methodology was used. MEDLINE, CINAHL, PsycINFO, and ERIC databases were searched for articles published from 2006 to 2022. A total of 2,000 titles were identified for review, with 51 studies being selected for inclusion. RESULTS: Multiple classroom-based learning strategies generally reported as being effective were identified, including flipped classroom, educational technology, spaced learning, team-based learning, concept mapping and schema, testing, and case study and problem-based learning. CONCLUSION: Although DL has been proven to be effective in the classroom setting for HP, no one type has been shown to be more effective than others. Additional research is needed within the context of transferring knowledge to clinical settings and in nursing education. [J Nurs Educ. 2024;63(1):24-31.].


Assuntos
Educação em Enfermagem , Humanos , Tecnologia Educacional , Conhecimento , Aprendizagem , Aprendizagem Baseada em Problemas
2.
Nurs Open ; 10(11): 7144-7153, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37715615

RESUMO

AIM: To identify teaching stategies, theories, and methods to enhance students' quality of life (QOL) that are used in preparing students for the NCLEX-RN exam. DESIGN: A scoping review was conducted. METHODS: Arksey and O'Malley's methodological framework and PRISMA-ScR guidelines were utilized. Data were derived from four databases including CINAHL, ERIC, PsychINFO and Web of Science using specific keywords. Inclusion criteria were English language and articles published in the last 7 years. RESULTS: Studies (N = 25) revealed that multiple educational strategies are used to prepare students for the NCLEX-RN exam; however, there was not a consensus on a best practice. Eight theories were utilized in more than one article. QOL concerns of psychological, social, spiritual, financial and occupational dimensions may relate to the NCLEX-RN results. PUBLIC CONTRIBUTION: Patterns in educational strategies and theories were noted among articles, but there was no focus on enhancing students' QOL.

3.
Aust Occup Ther J ; 70(5): 548-558, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37165533

RESUMO

INTRODUCTION: Occupation-centred practice is core to contemporary occupational therapy; however, knowledge and implementation of occupation in practice vary. New graduate occupational therapists find implementing occupation-centred practice challenging, partly due to the influence of senior occupational therapists. However, little is known about senior therapists' views, knowledge, and use of occupation-centred practice and the impact this has on new graduates. The aims of this study were to explore senior occupational therapists' perspectives on and use of occupation-centred practice and the extent to which they influence the occupation-centred practice of the new graduates they supervise. METHODS: Interpretative phenomenology was used as the research design. Ten senior occupational therapists in Australia were purposively recruited to participate in semi-structured interviews, which we transcribed. Interpretative Phenomenological Analysis (IPA) was used to analyse the data and develop themes. FINDINGS: Five themes were discovered from the data: together, but apart; a link between knowledge and identity; navigating different cultures; making up for what is missing; and good supervisors. The themes revealed participants' varied knowledge and use of occupation-centred practice, the influence of practice context, and the way supervision impacted on the practice of new graduates. CONCLUSION: Senior occupational therapists valued occupation-centred practice, but their understanding and implementation of it varied. Participants acknowledged that they held great power to influence new graduates' use of occupation-centred practice through supervision. Consequently, if occupation is not central to supervision, this could perpetuate the ongoing challenges of delivering contemporary practice.


Assuntos
Terapeutas Ocupacionais , Terapia Ocupacional , Humanos , Austrália , Pessoal Técnico de Saúde , Ocupações
4.
Orthop J Sports Med ; 10(12): 23259671221140837, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36518729

RESUMO

Background: Opioid analgesics continue to be prescribed after ambulatory surgery despite untoward adverse effects, risk of overdose, and association with substance use disorder. Purpose/Hypothesis: The purpose was to investigate the use of a novel system to provide scheduled and simultaneous dosing of acetaminophen, celecoxib, and pregabalin after anterior cruciate ligament reconstruction (ACLR). It was hypothesized that this system would markedly reduce pain and opioid use compared with existing best practice. Study Design: Randomized controlled trial; Level of evidence, 1. Methods: Included were 100 patients scheduled for elective, primary ACLR using allograft or hamstring tendon autograft. Selection criteria included age between 18 and 65 years and weight between 65 and 120 kg. Exclusion criteria were a known allergy to any drug used in the study or the use of opioid analgesics before surgery. Patients in the intervention group received a blister pack with scheduled, simultaneous doses of acetaminophen, celecoxib, and pregabalin; patients were also given oxycodone 5 mg as needed for breakthrough pain. Patients in the control group were prescribed ibuprofen and oxycodone 5 mg/acetaminophen 325 mg as needed for pain. The primary outcome measure was pain. Secondary outcomes were nausea, itching, and daily oxycodone use. Patients were asked to quantify their average pain at rest, nausea, and itching on an 11-point verbal scale (from 0 to 10). These data were recorded for 6 days during daily telephone contacts with patients after hospital discharge. Results: Cumulative results for 6 days showed significantly lower values in the intervention group compared with the control group for pain (median [interquartile range], 28 [14-35] vs 35 [28-41], respectively; P = .009) and oxycodone use (median [interquartile range] number of tablets, 0 [0-2] vs 8 [1.25-16], respectively; P < .001). Based on these data, the upper tolerance limits for the number of oxycodone tablets required by 90% of patients in the intervention and control groups were 8 tablets and 30 tablets, respectively. Cumulative results for nausea and itching were also significantly lower for the intervention group. Most patients in the intervention group used no opioids during recovery. Conclusion: Simultaneous dosing of 3 nonopioid analgesics resulted in reduced postoperative pain and markedly lower opioid use. Registration: NCT04015908 (ClinicalTrials.gov identifier).

6.
Trauma Violence Abuse ; 23(5): 1510-1528, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-33685295

RESUMO

Intimate partner sexual violence (IPSV) is a prevalent phenomenon, yet an under-researched topic. Due to the complex nature of balancing love and fear, individuals who experience IPSV have unique needs and face unique barriers to seeking care. The purpose of this systematic review was to examine the literature on help-seeking and barriers to care in IPSV. Articles were identified through PubMed, CINAHL, PsycINFO, and Web of Science. Search terms included terms related to IPSV, intimate partner violence (IPV), domestic violence, sexual assault, and rape. The review was limited to the United States, and articles that were included needed to specifically measure or identify sexual violence in an intimate relationship and analyze or discuss IPSV in relation to help-seeking behaviors or barriers to care. Of the 17 articles included in this review, 13 were quantitative studies and four were qualitative studies. Various definitions and measurements of IPSV across studies included in this review make drawing broad conclusions challenging. Findings suggest that experiencing IPSV compared to experiencing nonsexual IPV (i.e., physical or psychological IPV) may increase help-seeking for medical, legal, and social services while decreasing help-seeking for informal support. Help-seeking can also reduce risk of future IPSV and decrease poor mental health outcomes. Barriers to seeking care in IPSV included social stigma, fear, and difficulty for individuals in identifying IPSV behaviors in their relationships as abuse. More inclusive research is needed among different populations including men, non-White individuals, nonheterosexual, and transgender individuals. Suggestions for research, practice, and policies are discussed.


Assuntos
Violência por Parceiro Íntimo , Delitos Sexuais , Masculino , Humanos , Prevalência , Delitos Sexuais/psicologia , Parceiros Sexuais , Violência por Parceiro Íntimo/prevenção & controle , Violência por Parceiro Íntimo/psicologia , Acessibilidade aos Serviços de Saúde
7.
PLoS One ; 16(7): e0253795, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34234373

RESUMO

INTRODUCTION: Cognitive complaints in older adults may be indicative of progressive cognitive decline including Alzheimer's disease (AD), but also occur in other age-related chronic conditions, complicating identification of early AD symptoms. To better understand cognitive complaints in aging, we systematically reviewed the evidence to determine their prevalence and characterization among older adults with the most common age-related chronic conditions. METHODS: This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement and the review protocol was prospectively registered with PROSPERO (ID: CRD42020153147). Searches were conducted in PubMed, CINAHL, PsycINFO, Web of Science, and ProQuest Dissertations & Theses A&I in June 2020. Two members of the review team independently determined article eligibility for inclusion and conducted quality appraisal. A narrative synthesis of results was used to integrate findings across studies and draw conclusions regarding the strength of the evidence in each chronic condition category. RESULTS: Thirty-seven articles met eligibility criteria and were included in the review. Conditions represented were diabetes (n = 20), heart disease (n = 13), hypertension (n = 10), chronic lung disease (n = 5), arthritis (n = 4), heart failure (n = 2), and hyperlipidemia (n = 2). In addition, 16 studies included a measure of multimorbidity. Overall, there was a higher prevalence of cognitive complaints in individuals with higher multimorbidity, including a potential dose-dependent relationship. Findings for specific conditions were inconsistent, but there is evidence to suggest that cross-sectionally, older adults with diabetes, heart disease, chronic lung disease, and arthritis have more cognitive complaints than those without these conditions. CONCLUSION: There is strong evidence demonstrating that cognitive complaints are more common in older adults with higher multimorbidity, but little research examining these associations over time. Improving our understanding of the longitudinal trajectory of cognitive complaints, multimorbidity, and objective cognition in older age is an important area for future research.


Assuntos
Envelhecimento/fisiologia , Doença Crônica/epidemiologia , Disfunção Cognitiva/epidemiologia , Multimorbidade , Fatores Etários , Idoso , Cognição/fisiologia , Disfunção Cognitiva/etiologia , Disfunção Cognitiva/fisiopatologia , Humanos , Fatores de Risco
8.
Biomark Insights ; 16: 11772719211024100, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34177256

RESUMO

Human health biobanks are forms of research infrastructure that supply biospecimens and associated data to researchers, and therefore juxtapose the activities of clinical care and biomedical research. The discipline of biobanking has existed for over 20 years and is supported by several international professional societies and dedicated academic journals. However, despite both rising research demand for human biospecimens, and the growth of biobanking as an academic discipline, many individual biobanks continue to experience sustainability challenges. This commentary will summarize how the COVID-19 pandemic is creating new challenges and opportunities for both the health biobanking sector and the supporting discipline of biobanking. While the challenges for biobanks may be numerous and acute, there are opportunities for both individual biobanks and the discipline of biobanking to embrace change such that biobanks can continue to support and drive biomedical research. We will therefore describe numerous practical steps that individual biobanks and/or the discipline of biobanking can take to survive and possibly thrive in response to the COVID-19 pandemic.

9.
J Med Libr Assoc ; 108(2): 262-269, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32256237

RESUMO

OBJECTIVE: As access to information grows in tandem with the growth of the Internet, access to grey literature also increases. Because little is known about the use of grey literature in nursing journals, the authors investigated the prevalence and types of grey literature citations in top nursing journals. METHODS: We analyzed all citations (n=52,116) from articles published in 2011 in 6 top nursing journals selected from the Medical Library Association's Nursing and Allied Health Resource Section's 2012 "Selected List of Nursing Journals." Grey literature citations were identified and categorized by type. RESULTS: Grey literature accounted for 10.4% of citations across all 6 journals. Publications from governments (54.3%) and corporate organizations (26.8%) were the most common types of grey literature. CONCLUSION: The substantial citation of grey literature in nursing journals shows that nursing scholars seek and use this category of information. These findings have implications for teaching and learning among nursing researchers and the information professionals who serve the nursing research community.


Assuntos
Bibliometria , Literatura Cinzenta/estatística & dados numéricos , Enfermagem/estatística & dados numéricos , Publicações Periódicas como Assunto/estatística & dados numéricos
10.
Inflamm Bowel Dis ; 24(12): 2565-2578, 2018 11 29.
Artigo em Inglês | MEDLINE | ID: mdl-30085215

RESUMO

Background: Transcriptional profiling has been performed on biopsies from ulcerative colitis patients. Limitations in prior studies include the variability introduced by inflammation, anatomic site of biopsy, extent of disease, and medications. We sought to more globally understand the variability of gene expression from patients with ulcerative colitis to advance our understanding of its pathogenesis and to guide clinical study design. Methods: We performed transcriptional profiling on 13 subjects, including pediatric and adult patients from 2 hospital sites. For each patient, we collected 6 biopsies from macroscopically inflamed tissue and 4 biopsies from macroscopically healthy-appearing tissue. Isolated RNA was used for microarray gene expression analysis utilizing Affymetrix Human Primeview microarrays. Ingenuity pathway analysis was used to assess over-representation of gene ontology and biological pathways. RNAseq was also performed, and differential analysis was assessed to compare affected vs unaffected samples. Finally, we modeled the minimum number of biopsies required to reliably detect gene expression across different subject numbers. Results: Transcriptional profiles co-clustered independently of the hospital collection site, patient age, sex, and colonic location, which parallels prior gene expression findings. A small set of genes not previously described was identified. Our modeling analysis reveals the number of biopsies and patients per cohort to yield reliable results in clinical studies. Conclusions: Key findings include concordance, including some expansion, of previously published gene expression studies and similarity among different age groups. We also established a reliable statistical model for biopsy collection for future clinical studies.


Assuntos
Colite Ulcerativa/genética , Colo/metabolismo , Mucosa Intestinal/metabolismo , Adolescente , Adulto , Suscetibilidade a Doenças/metabolismo , Feminino , Expressão Gênica , Genoma Humano/genética , Humanos , Íleo/metabolismo , Masculino , Análise em Microsséries , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , RNA/metabolismo , Adulto Jovem
11.
Sci Rep ; 7(1): 14720, 2017 11 07.
Artigo em Inglês | MEDLINE | ID: mdl-29116188

RESUMO

The objective of this study was to investigate CXC chemokines and its receptor in patients with Behcet's disease (BD) and their associations with disease activity. Blood samples were collected from 109 BD patients and 36 age- and sex-matched healthy controls (HCs). Twenty-two follow-up blood samples were collected in BD patients. Serum CXC chemokines (CXCL1, CXCL8, CXCL9, CXCL10, CXCL12, CXCL13 and CXCL16) and cell surface marker expression (CD3, CD4 and CXCR3) in peripheral blood mononuclear cells (PBMCs) were assayed. Clinical features including disease activity were evaluated at the time of blood collection. CXCR3 expression in skin and intestinal lesions from BD patients and HCs was assessed via immunohistochemistry. Serum CXCL10 levels were correlated with disease activity in terms of Behçet's Disease Current Activity Form (BDCAF) (p < 0.001). In follow-up BD patients, changes in serum CXCL10 levels tended to be correlated with those of BDCAF. The percentage of CXCR3 expression in CD3-positive cells in PBMCs was inversely correlated with serum CXCL10 levels in BD patients (p = 0.022). By immunohistochemistry, the number of CXCR3-positive mononuclear cells was higher in skin and intestinal lesions of BD patients than in those of HCs. These results suggest that the CXCL10/CXCR3 axis may contribute to the pathogenesis of BD.


Assuntos
Síndrome de Behçet/sangue , Quimiocina CXCL10/sangue , Mucosa Intestinal/patologia , Receptores CXCR3/sangue , Pele/patologia , Adulto , Síndrome de Behçet/patologia , Estudos de Casos e Controles , Feminino , Humanos , Imuno-Histoquímica , Leucócitos Mononucleares/metabolismo , Masculino , Pessoa de Meia-Idade , Linfócitos T/metabolismo
12.
Biopreserv Biobank ; 12(6): 409-14, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25496153

RESUMO

BACKGROUND: Broad or general consent given by cancer patients for their tissue, blood, and clinical information to be stored in institutional biorepositories is fundamental to enable future ethical translational cancer research. The decision to consent for biobanking will contribute to the development of advanced diagnostic and prognostic tests, as well as new therapies to improve patient outcomes. While the rate of patient participation in biobanking programs is generally reported as high worldwide, few studies have investigated factors that may influence this decision. Biobanking at our medical research institute, an associated public (government-run) university hospital, and private hospital has been established for over 20 years, with collection of certain tumor types embedded in the research culture of these institutions. In this study, we investigated factors that may influence a cancer patient's decision to give broad consent for biobanking of their specimens. METHODS: Data on patient consent were collected over a 6-month period from both government and private hospitals associated with our medical research institute. Factors considered included gender, patient age at surgery, type of malignancy (breast, duodenal, cervical, endometrial, gastric, liver, esophageal, ovarian, pancreatic, pelvic, uterine, or vulval), type of institution where surgery was performed, and timing of consent. RESULTS: Of 171 cancer patients, 159 (93%) gave broad consent for biobanking of their tissue and blood specimens for future cancer research projects receiving ethical and scientific approval. None of the factors analyzed was shown to influence a patient's decision to contribute biological specimens and clinical data to a biorepository for future medical research. CONCLUSION: Biobanking for future ethically and scientifically approved research projects in an established institution is an initiative that receives strong support from patients undergoing cancer surgery, independent of factors including gender, age, type of tumor, type of institution where surgery was performed, or timing of consent.


Assuntos
Bancos de Espécimes Biológicos , Consentimento Livre e Esclarecido , Neoplasias/patologia , Adulto , Feminino , Humanos , Masculino
13.
J Contin Educ Nurs ; 45(5): 212-8, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24766039

RESUMO

Graduate nurses are employed in clinical, research, educational, and policy roles. As leaders, they are expected to develop and sustain projects that support translating research to practice and policy. Funding to support initiatives is tight and requires innovative solutions to cover salaries, benefits, equipment purchases, and other program expenses. In an effort to teach grant writing while developing skilled leaders who are effective and competitive in securing funds, the George Washington University School of Nursing offers a graduate-level grant writing course. In the summer of 2011, a collaborative learning model was developed within the course. The joint approach was foundational to securing an Agency for Healthcare Research and Quality grant to support development and implementation of a patient engagement project by the Nursing Alliance for Quality Care. This article describes the project and offers hints for those seeking to develop a collaborative educational experience that affords new leadership skills for RNs from all backgrounds.


Assuntos
Educação de Pós-Graduação em Enfermagem/organização & administração , Docentes de Enfermagem , Modelos Educacionais , Estudantes de Enfermagem , Apoio ao Desenvolvimento de Recursos Humanos/organização & administração , Comportamento Cooperativo , Humanos , Internacionalidade , Apoio ao Desenvolvimento de Recursos Humanos/métodos
14.
J Shoulder Elbow Surg ; 22(3): 381-6, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22947235

RESUMO

BACKGROUND: Interscalene brachial plexus block (ISBPB) provides excellent analgesia after rotator cuff surgery but is associated with diaphragm dysfunction. In this study, ISBPB with 20 mL of 0.125% or 0.25% bupivacaine were compared to assess the effect on diaphragm function, oxygen saturation, pain control, opioid requirements, and patient satisfaction. MATERIALS AND METHODS: In this prospective, randomized, double-blind study, 30 adults undergoing outpatient arthroscopic rotator cuff repair were enrolled to receive ultrasound-guided interscalene brachial plexus catheter placement with 20 mL of 0.125% (n = 15) or 0.25% bupivacaine (n = 15). Diaphragm function and oxygen saturation were assessed before ISBPB placement and on discharge from the postanesthesia care unit. Postoperative pain scores, opioid requirements, and patient satisfaction were compared. RESULTS: Diaphragm function and oxygen saturation were superior in the low concentration group. Absent or paradoxic motion of the diaphragm was present in 78% of the 0.25% group compared with 21% of patients in the 0.125% group (P = .008). Oxygen saturation decreased 4.3% in the 0.25% group compared with a decrease of 2.6% in the 0.125% group (P = .04). Pain scores averaged 1 of 10 in the 0.25% group and 0 of 10 in the 0.125% group (P = .02). Opioid requirements and patient satisfaction were not different between the two groups. CONCLUSIONS: In this randomized, double-blind comparison of ISBPB performed with 20 mL of 0.125% or 0.25% bupivacaine, diaphragm function and oxygen saturation were superior in patients treated with more dilute bupivacaine. Furthermore, there were no clinically significant differences in pain scores, and no statistically significant differences in opioid requirements and patient satisfaction.


Assuntos
Anestésicos Locais , Bupivacaína , Diafragma/efeitos dos fármacos , Bloqueio Nervoso , Dor Pós-Operatória/tratamento farmacológico , Manguito Rotador/cirurgia , Analgésicos Opioides/uso terapêutico , Artroscopia , Diafragma/diagnóstico por imagem , Diafragma/inervação , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Oximetria , Medição da Dor , Satisfação do Paciente , Estudos Prospectivos , Lesões do Manguito Rotador , Ultrassonografia
15.
JAMA ; 290(20): 2685-92, 2003 Nov 26.
Artigo em Inglês | MEDLINE | ID: mdl-14645310

RESUMO

CONTEXT: Warfarin has been shown to be highly efficacious for preventing thromboembolism in atrial fibrillation in randomized trials, but its effectiveness and safety in clinical practice is less clear. OBJECTIVE: To evaluate the effect of warfarin on risk of thromboembolism, hemorrhage, and death in atrial fibrillation within a usual care setting. DESIGN: Cohort study assembled between July 1, 1996, and December 31, 1997, and followed up through August 31, 1999. SETTING: Large integrated health care system in Northern California. PATIENTS: Of 13,559 adults with nonvalvular atrial fibrillation, 11,526 were studied, 43% of whom were women, mean age 71 years, with no known contraindications to anticoagulation at baseline. MAIN OUTCOMES: Ischemic stroke, peripheral embolism, hemorrhage, and death according to warfarin use and comorbidity status, as determined by automated databases, review of medical records, and state mortality files. RESULTS: Among 11,526 patients, 397 incident thromboembolic events (372 ischemic strokes, 25 peripheral embolism) occurred during 25,341 person-years of follow-up, and warfarin therapy was associated with a 51% (95% confidence interval [CI], 39%-60%) lower risk of thromboembolism compared with no warfarin therapy (either no antithrombotic therapy or aspirin) after adjusting for potential confounders and likelihood of receiving warfarin. Warfarin was effective in reducing thromboembolic risk in the presence or absence of risk factors for stroke. A nested case-control analysis estimated a 64% reduction in odds of thromboembolism with warfarin compared with no antithrombotic therapy. Warfarin was also associated with a reduced risk of all-cause mortality (adjusted hazard ratio, 0.69; 95% CI, 0.61-0.77). Intracranial hemorrhage was uncommon, but the rate was moderately higher among those taking vs those not taking warfarin (0.46 vs 0.23 per 100 person-years, respectively; P =.003, adjusted hazard ratio, 1.97; 95% CI, 1.24-3.13). However, warfarin therapy was not associated with an increased adjusted risk of nonintracranial major hemorrhage. The effects of warfarin were similar when patients with contraindications at baseline were analyzed separately or combined with those without contraindications (total cohort of 13,559). CONCLUSIONS: Warfarin is very effective for preventing ischemic stroke in patients with atrial fibrillation in clinical practice while the absolute increase in the risk of intracranial hemorrhage is small. Results of randomized trials of anticoagulation translate well into clinical care for patients with atrial fibrillation.


Assuntos
Anticoagulantes/uso terapêutico , Fibrilação Atrial/tratamento farmacológico , Acidente Vascular Cerebral/prevenção & controle , Varfarina/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Fibrilação Atrial/complicações , Estudos de Casos e Controles , Estudos de Coortes , Feminino , Hemorragia/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Ensaios Clínicos Controlados Aleatórios como Assunto , Risco , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/etiologia , Tromboembolia/epidemiologia , Tromboembolia/prevenção & controle
16.
J Thromb Thrombolysis ; 15(1): 41-6, 2003 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-14574075

RESUMO

BACKGROUND: Atrial fibrillation is a major cause of cardioembolic stroke. Since atrial and venous pressures are similar, genetic variants that promote venous thromboembolism may increase the risk of atrial thrombi and subsequent stroke in atrial fibrillation. METHODS: We conducted a nested case-control study of the association between the presence of factor V Leiden polymorphism and incident ischemic stroke within a prospective cohort of 13,559 adult patients with diagnosed nonvalvular atrial fibrillation between July 1, 1996 and December 31, 1997. Incident cases with ischemic strokes were identified through August 31, 1999 and matching stroke-free controls were enrolled. RESULTS: One hundred thirty-seven case patients with incident stroke and 214 controls were enrolled. Cases were older, more likely to be women, and more likely to have a prior stroke, heart failure, hypertension, diabetes, and coronary disease. The factor V Leiden polymorphism was present in 5.8% of cases and 3.7% of controls (P = 0.36). Among non-anticoagulated patients, 7/96 (7.3%) case patients and 3/81 (3.6%) control subjects were heterozygous for factor V Leiden (Odds Ratio 2.1 [95% CI: 0.5-8.4]). Adjustment for known stroke risk factors did not significantly change the observed association in non-anticoagulated patients (adjusted OR 1.9 [0.5-8.0]). CONCLUSIONS: Within a large nested case-control sample of patients with atrial fibrillation, factor V Leiden was not significantly associated with risk of stroke. However, given the suggestive nature of our findings, further study in even larger numbers of patients is needed to clarify the impact of factor V Leiden on stroke risk in atrial fibrillation.


Assuntos
Fibrilação Atrial/complicações , Fator V/fisiologia , Acidente Vascular Cerebral/genética , Idoso , Idoso de 80 Anos ou mais , Anticoagulantes/farmacologia , Anticoagulantes/uso terapêutico , Isquemia Encefálica/epidemiologia , Isquemia Encefálica/etiologia , Isquemia Encefálica/genética , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Epidemiologia Molecular , Razão de Chances , Fatores de Risco , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/etiologia
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