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1.
Int J Clin Pract ; 2022: 4090444, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36458263

RESUMO

Introduction: Although uncommon, local anaesthetic systemic toxicity (LAST) may impose fatal risk to the patients. We investigated the awareness of LAST and knowledge on local anaesthetics among our postgraduate trainees. Materials and Methods: A total of 134 postgraduate trainees from the departments of general surgery (Surgical), orthopaedic surgery (Ortho), otorhinolaryngology (ENT), obstetrics and gynaecology (OBGYN), as well as anaesthesiology and intensive care (Anaesth) were recruited. A validated questionnaire was used to assess awareness and knowledge. All participants attended a medical-education session and completed the questionnaire as preassessment and postassessment. Data were analysed, and comparisons between disciplines were conducted. Results: The trainees' awareness of LAST was overall poor at preassessment which improved almost 6-folds at postassessment. Surprisingly, only 20 (45.5%) participants from the anaesthesiology group had awareness of LAST at preassessment, and none of the participants were from surgical, orthopaedic, and obstetrics and gynaecology departments. Preassessment scores were significantly higher in the anaesth group as compared to all other groups; with a difference in the average score for Anaesth vs Surgical of 3.46 (95%, CI:2.17, 4.74), Anaesth vs Ortho of 3.64 (95%, CI:2.64, 4.64), Anaesth vs ENT of 3.43 (95%, CI:2.20, 4.67), and Anaesth vs OBGYN of 6.93 (95%, CI:5.64, 8.21). However, there was no significant difference of awareness scores between all participants at postassessment scores. Conclusion: The overall level of awareness was poor. However, the implementation of an education session significantly improved the knowledge and awareness across all disciplines.


Assuntos
Anestésicos Locais , Cuidados Críticos , Feminino , Gravidez , Humanos , Anestésicos Locais/efeitos adversos
2.
Front Psychol ; 13: 849627, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35769746

RESUMO

With the development of internet technology, e-learning has become an essential part of the modern education system. However, the e-learning market faces enormous competition. Consumers' continuance purchase intention has become a vital factor in the success of e-learning courses. Thus, factors that influence consumers' continuance purchase intention should be examined in the e-learning market. However, little research has focused on identifying the continuance purchase intention of an e-learning course. Based on the information system continuity model ISC), this paper develops a research model to investigate the factors influencing satisfaction and continuance purchase intention in e-learning. A cross-sectional, questionnaire-based research design was used in this study. We collected data from consumers who had enrolled in paid online Python courses. In total, 508 paid online Python course users completed the online survey. SmartPLS software was used for data analysis. The results demonstrated that perceived course quality, service quality, convenience, and usefulness significantly affect consumers' satisfaction with the experience course. Moreover, the findings show that satisfaction, self-efficacy, and e-word of mouth (e-WOM) determine the consumers' continuance purchase intention of the reminder course. This study also found that satisfaction mediates the effects of experience courses on consumers' continuance purchase intention of the online Python course. The implications for theory and practice and future research directions are discussed.

3.
Am Heart J ; 234: 51-59, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33359778

RESUMO

BACKGROUND: Contrast volume used during percutaneous coronary intervention has a direct relationship with contrast-associated acute kidney injury. While several models estimate the risk of contrast-associated acute kidney injury, only the strategy of limiting contrast volume to 3 × estimated glomerular filtration rate (eGFR) gives actionable estimates of safe contrast volume doses. However, this method does not consider other patient characteristics associated with risk, such as age, diabetes or heart failure. METHODS: Using the National Cardiovascular Data Registry acute kidney injury risk model, we developed a novel strategy to define safe contrast limits by entering a contrast term into the model and using it to meet specific (eg, 10%) relative risk reductions. We then estimated acute kidney injury rates when our patient-centered model-derived thresholds were and were not exceeded using data from CathPCI version 5 between April 2018 and June 2019. We repeated the same analysis in a sub-set of patients who received ≤3 × eGFR contrast. RESULTS: After excluding patients on hemodialysis, below average risk (<7%), missing data and multiple percutaneous coronary interventions, our final analytical cohort included 141,133 patients at high risk for acute kidney injury. The rate of acute kidney injury was 10.0% when the contrast thresholds derived from our patient-centered model were met and 18.2% when they were exceeded (P < .001). In patients who received contrast ≤3 × eGFR (n = 82,318), contrast-associated acute kidney injury rate was 9.8% when the contrast thresholds derived from our patient centered model were met and 14.5% when they were exceeded (P < .001). CONCLUSIONS: A novel strategy for developing personalized contrast volume thresholds, provides actionable information for providers that could decrease rates of contrast-associated acute kidney injury. This strategy needs further prospective testing to assess efficacy in improving patient outcomes.


Assuntos
Injúria Renal Aguda/prevenção & controle , Meios de Contraste/efeitos adversos , Intervenção Coronária Percutânea/métodos , Injúria Renal Aguda/induzido quimicamente , Injúria Renal Aguda/epidemiologia , Fatores Etários , Idoso , Meios de Contraste/administração & dosagem , Complicações do Diabetes/prevenção & controle , Feminino , Taxa de Filtração Glomerular , Insuficiência Cardíaca/complicações , Humanos , Masculino , Fatores de Risco
4.
Case Rep Cardiol ; 2019: 1649580, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31772779

RESUMO

This is a case of a 43-year-old man who in 2014 was diagnosed with oral squamous cell carcinoma involving the tongue. He underwent extensive surgery that involved right tongue cancer resection and reconstruction with a free flap graft from his right forearm. He then was started on chemotherapy and radiation. Surveillance computed tomography in December 2016 showed a cardiac lesion in the left ventricular apex, which was confirmed by further echocardiography and cardiac magnetic resonance imaging. A biopsy of the mass revealed metastatic squamous cell carcinoma. He was deemed to not be a surgical candidate and continued on palliative chemotherapy. The patient had a very poor prognosis and eventually succumbed to the disease, highlighting the importance of surveillance imaging in such cases. A high index of suspicion on the part of the physician is needed to help in the early identification of these patients.

5.
J Card Fail ; 24(4): 227-233, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29496519

RESUMO

BACKGROUND: This study evaluated if different prognostic characteristics exist for peak oxygen consumption (VO2), percent predicted peak VO2 (ppVO2), and the slope of the change in minute ventilation to volume of carbon dioxide produced (VE-VCO2) slope between men and women with heart failure and reduced ejection fraction (HFrEF). METHODS: Analysis of the Henry Ford Hospital Cardiopulmonary Exercise Testing database (n = 1085; 33% women, 55% black) of individuals with HFrEF who completed a physician-referred cardiopulmonary exercise testing (CPX) between 1997 and 2010. Primary outcome was a composite of all-cause death, left ventricular assist device placement, and orthotopic heart transplant . Logistic and Cox regressions were performed and Kaplan-Meier survival curves were developed to describe relationships of the CPX variables and the composite outcome within and between men and women. RESULTS: All patients were followed-up for a minimum of 5 years, during which there were 643 combined events (62%; 499 deaths, 64 left ventricular assist device implants, 80 orthotopic heart transplant). Each CPX variable was significantly related to event-free survival among both men and women. Log-rank assessment of Kaplan-Meier curves noted survival differences for peak VO2 and VE-VCO2 slope (p ≤ .002), but not ppVO2 (P = .32), between men and women. CONCLUSIONS: Prognostic values for peak VO2 and the VE-VCO2 slope might be considered separately for men and women, whereas the ppVO2 value corresponding to 1- and 3-year survival rates may not be different between the sexes.


Assuntos
Teste de Esforço/métodos , Tolerância ao Exercício/fisiologia , Insuficiência Cardíaca/diagnóstico , Consumo de Oxigênio/fisiologia , Volume Sistólico/fisiologia , Causas de Morte/tendências , Progressão da Doença , Feminino , Seguimentos , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/fisiopatologia , Humanos , Masculino , Michigan/epidemiologia , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Fatores Sexuais , Taxa de Sobrevida/tendências
7.
Med Sci Sports Exerc ; 50(2): 204-210, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-28938247

RESUMO

PURPOSE: This study aimed to describe the influence of different equations to predict maximal oxygen uptake (MV˙O2) on the percent predicted MV˙O2 (ppMV˙O2) and the resultant categorization of patients with heart failure with reduced ejection fraction into high or low risk. METHODS: In this retrospective cohort study, ppMV˙O2 was calculated using six different equations to predict MV˙O2 among 1168 patients with heart failure with reduced ejection fraction (33% women). Repeated-measures ANOVA was used to compare within-subject differences in mean ppMV˙O2 between the prediction equations. Cochrane's Q test was used to compare the within-subject difference in the proportion of patients with ppMV˙O2 of <50% (high risk) and ≥75% (low risk) between the prediction equations. RESULTS: The ppMV˙O2 varied significantly (P < 0.001) between the MV˙O2 prediction equations, with mean (10th, 90th percentile) ppMV˙O2 ranging from 39% (25%, 54%) to 60% (39%, 83%) in men and 37% (24%, 49%) to 70% (47%, 94%) in women. Significant variation (P < 0.001) was also observed between prediction equations for the proportion of patients with ppMV˙O2 of <50% and ≥75% in men and women. CONCLUSIONS: Statistically significant and clinically meaningful variations in the ppMV˙O2 are observed on the basis of the reference equation used to predict MV˙O2. Future writing committees should specify the preferred reference equation when identifying a ppMV˙O2 criterion in guideline statements.


Assuntos
Insuficiência Cardíaca/fisiopatologia , Consumo de Oxigênio , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Oxigênio , Valor Preditivo dos Testes , Valores de Referência , Estudos Retrospectivos
8.
J Am Coll Cardiol ; 70(5): 527-538, 2017 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-28750695

RESUMO

BACKGROUND: In patients with a myocardial infarction (MI) 1 to 3 years earlier, treatment with ticagrelor + low-dose aspirin (ASA) reduces the risk of cardiovascular (CV) death, MI, or stroke compared with low-dose aspirin alone, but at an increased risk of major bleeding. OBJECTIVES: The authors evaluated cost-effectiveness of ticagrelor + low-dose ASA in patients with prior MI within the prior 3 years. METHODS: The authors performed a prospective economic substudy alongside the PEGASUS-TIMI 54 (Prevention of Cardiovascular Events in Patients With Prior Heart Attack Using Ticagrelor Compared to Placebo on a Background of Aspirin-Thrombolysis In Myocardial Infarction 54) trial, which randomized 21,162 patients to ASA alone, ticagrelor 60 mg twice daily + low-dose ASA, or ticagrelor 90 mg twice daily + low-dose ASA. Medical resource use data were collected over a median 33-month follow-up. Costs were assessed from the U.S. health care system perspective. In-trial data relating to survival, utility, and costs were combined with lifetime projections to evaluate lifetime cost-effectiveness of the Food and Drug Administration-approved lower-dose ticagrelor regimen (60 mg twice daily). RESULTS: Hospitalization costs were similar for ticagrelor 60 mg and placebo ($2,262 vs. $2,333; 95% confidence interval for difference -$303 to $163; p = 0.54); after inclusion of a daily ticagrelor 60 mg cost of $10.52, total costs were higher for ticagrelor ($10,016 vs. $2,333; 95% CI: $7,441 to $7,930; p < 0.001). In-trial quality-adjusted life-years (QALYs) were similar (2.28 vs. 2.27; p = 0.34). Over a lifetime horizon, ticagrelor was associated with QALY gains of 0.078 and incremental costs of $7,435, yielding an incremental cost-effectiveness ratio (ICER) of $94,917/QALY gained. Several high-risk groups had more favorable ICERs, including patients with >1 prior MI, multivessel disease, diabetes, renal dysfunction (all with ICERs $50,000 to $70,000/QALY gained), patients age <75 years (ICER = $44,779/QALY gained), and patients with peripheral artery disease (ICER = $13,427/QALY gained). CONCLUSIONS: For patients with a history of MI >1 year previously, long-term treatment with ticagrelor 60 mg + low-dose ASA yields a cost-effectiveness ratio suggesting intermediate value based on current guidelines. Ticagrelor appears to provide higher value for patients in several recognized high-risk subgroups. (Prevention of Cardiovascular Events [e.g., Death From Heart or Vascular Disease, Heart Attack, or Stroke] in Patients With Prior Heart Attack Using Ticagrelor Compared to Placebo on a Background of Aspirin [PEGASUS]; NCT01225562).


Assuntos
Adenosina/análogos & derivados , Infarto do Miocárdio/tratamento farmacológico , Prevenção Secundária/economia , Acidente Vascular Cerebral/prevenção & controle , Adenosina/administração & dosagem , Idoso , Análise Custo-Benefício , Relação Dose-Resposta a Droga , Método Duplo-Cego , Feminino , Seguimentos , Humanos , Masculino , Infarto do Miocárdio/economia , Estudos Prospectivos , Antagonistas do Receptor Purinérgico P2Y/administração & dosagem , Recidiva , Prevenção Secundária/métodos , Ticagrelor , Fatores de Tempo
10.
Clin Cardiol ; 40(8): 521-527, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28300284

RESUMO

Drug-eluting stents (DES) reduce risk of in-stent restenosis after percutaneous coronary intervention (PCI) but require dual antiplatelet therapy (DAPT) for a longer term than bare-metal stents (BMS). Few studies have examined clinical predictors of DES vs BMS, and variability in provider selection between DES and BMS in clinical practice has not been well described. These insights can inform our understanding of current practice and may identify opportunities to improve decision-making stent selection decinsion-making. In a multicenter registry, 3295 consecutive patients underwent PCI by 158 interventional cardiologists across 10 US sites. Eighty percent of patients with treated with DES. Using hierarchical regression, diabetes mellitus, multivessel disease, health insurance, and white race were independently associated with greater DES use, whereas increasing age, history of hypertension, anticipated surgery, use of warfarin, lower hemoglobin, prior history of bleeding, and treatment of right coronary and left circumflex artery lesions as compared with PCI of left anterior descending artery were associated with lower likelihood of receiving DES. Adjusted rates of DES use across providers varied from 52.3% to 94.6%, and adjusted median odds ratio for DES selection was 1.69. DES selection appeared to reflect physicians' attempts to balance benefits of DES against risks of prolonged DAPT. Nevertheless, marked residual variability in DES selection across providers persisted after adjusting for predictors of restenosis, bleeding, and other factors. Further studies are needed to better understand drivers of this variability and identify the impact of patient and provider preferences on stent selection at the time of PCI.


Assuntos
Síndrome Coronariana Aguda/terapia , Stents Farmacológicos , Metais , Intervenção Coronária Percutânea/instrumentação , Stents , Síndrome Coronariana Aguda/diagnóstico , Síndrome Coronariana Aguda/mortalidade , Idoso , Distribuição de Qui-Quadrado , Tomada de Decisão Clínica , Comorbidade , Reestenose Coronária/etiologia , Quimioterapia Combinada , Feminino , Disparidades em Assistência à Saúde , Hemorragia/induzido quimicamente , Humanos , Seguro Saúde , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Razão de Chances , Seleção de Pacientes , Intervenção Coronária Percutânea/efeitos adversos , Intervenção Coronária Percutânea/mortalidade , Inibidores da Agregação Plaquetária/administração & dosagem , Inibidores da Agregação Plaquetária/efeitos adversos , Padrões de Prática Médica , Desenho de Prótese , Sistema de Registros , Medição de Risco , Fatores de Risco , Fatores Socioeconômicos , Fatores de Tempo , Resultado do Tratamento , Estados Unidos
11.
Catheter Cardiovasc Interv ; 90(3): 357-363, 2017 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-28168845

RESUMO

OBJECTIVES: To assess patients' perspective about factors associated with stent choice. BACKGROUND: Drug eluting stents (DES) markedly reduce the risk of repeat percutaneous coronary intervention (PCI), but necessitate a longer duration of dual anti-platelet therapy (DAPT) as compared with bare metal stents (BMS). Thus, understanding patients' perspective about factors associated with stent choice is paramount. METHODS: Patients undergoing angiography rated, on a 10-point scale, the importance (1 = not important, 10 = most important) of avoiding repeat revascularization and avoiding the following potential DAPT drawbacks: bleeding/bruising, more pills/day, medication costs and delaying elective surgery. The factor, or group of factors, that was rated highest by each patient was identified. RESULTS: Among 311 patients, repeat revascularization was the single most important consideration to 14.4% of patients, while 20.6% considered avoiding one of the DAPT drawbacks as most important. Most patients (65%) considered avoiding at least one DAPT drawback as important as avoiding repeat revascularization. In no subgroup of patients did more than a quarter of patients prefer avoiding repeat revascularization above all other concerns. Among patients undergoing PCI, more than three quarters received a DES, regardless of their stated preferences (DES use among those most valuing DES benefits, avoiding DAPT drawbacks, or both equally were 78.7%, 86.2%, and 85.6%, respectively, P = 0.56). CONCLUSION: Most patients reported that avoiding DAPT drawbacks was as important as avoiding repeat revascularization. Eliciting patient preferences regarding stent type can enhance shared decision-making and allow physicians to better tailor stent choice to patients' goals and values. TRIAL REGISTRATION: Developing and Testing a Personalized Evidence-based Shared Decision-making Tool for Stent Selection (DECIDE-PCI). ClinicalTrials.gov Identifier: NCT02046902. URL: https://clinicaltrials.gov/ct2/show/NCT02046902 © 2017 Wiley Periodicals, Inc.


Assuntos
Técnicas de Apoio para a Decisão , Stents Farmacológicos , Metais , Preferência do Paciente , Intervenção Coronária Percutânea/instrumentação , Inibidores da Agregação Plaquetária/administração & dosagem , Stents , Tomada de Decisão Clínica , Angiografia Coronária , Reestenose Coronária/etiologia , Reestenose Coronária/terapia , Estudos Transversais , Custos de Medicamentos , Quimioterapia Combinada , Feminino , Hemorragia/induzido quimicamente , Humanos , Masculino , Missouri , Participação do Paciente , Intervenção Coronária Percutânea/efeitos adversos , Inibidores da Agregação Plaquetária/efeitos adversos , Inibidores da Agregação Plaquetária/economia , Desenho de Prótese , Retratamento , Fatores de Risco , Resultado do Tratamento
12.
Clin Cardiol ; 40(1): 6-10, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28146269

RESUMO

Although eliminating angina is a primary goal in treating patients with chronic coronary artery disease (CAD), few contemporary data quantify prevalence and severity of angina across US cardiology practices. The authors hypothesized that angina among outpatients with CAD managed by US cardiologists is low and its prevalence varies by site. Among 25 US outpatient cardiology clinics enrolled in the American College of Cardiology Practice Innovation and Clinical Excellence (PINNACLE) registry, we prospectively recruited a consecutive sample of patients with chronic CAD over a 1- to 2-week period at each site between April 2013 and July 2015, irrespective of the reason for their appointment. Eligible patients had documented history of CAD (prior acute coronary syndrome, prior coronary revascularization procedure, or diagnosis of stable angina) and ≥1 prior office visit at the practice site. Angina was assessed directly from patients using the Seattle Angina Questionnaire Angina Frequency score. Among 1257 patients from 25 sites, 7.6% (n = 96) reported daily/weekly, 25.1% (n = 315) monthly, and 67.3% (n = 846) no angina. The proportion of patients with daily/weekly angina at each site ranged from 2.0% to 24.0%, but just over half (56.3%) were on ≥2 antianginal medications, with wide variability across sites (0%-100%). One-third of outpatients with chronic CAD managed by cardiologists report having angina in the prior month, and 7.6% have frequent symptoms. Among those with frequent angina, just over half were on ≥2 antianginal medications, with wide variability across sites. These findings suggest an opportunity to improve symptom control.


Assuntos
Angina Pectoris/epidemiologia , Doença da Artéria Coronariana/complicações , Gerenciamento Clínico , Pacientes Ambulatoriais , Sistema de Registros , Idoso , Angina Pectoris/etiologia , Angina Pectoris/terapia , Doença Crônica , Doença da Artéria Coronariana/epidemiologia , Doença da Artéria Coronariana/terapia , Feminino , Seguimentos , Humanos , Masculino , Prevalência , Estudos Prospectivos , Estados Unidos/epidemiologia
13.
Clin Cardiol ; 39(8): 440-5, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27244586

RESUMO

BACKGROUND: Complementary and alternative medicines (CAM) are commonly used in patients with cardiovascular disease. Although there is lack of evidence regarding the benefit of CAM on cardiovascular morbidity and mortality, health-status benefits could justify CAM use. HYPOTHESIS: Adoption of mind-body CAM after acute myocardial infarction (AMI) is associated with improved health status, though other forms of CAM are not associated with health-status improvement. METHODS: Patients with AMI from 24 US sites were assessed for CAM use (categorized as mind-body, biological, and manipulative therapies) prior to and 1 year after AMI. Among patients who reported not using CAM prior to their AMI, association of initiating CAM on patients' health status at 1 year after AMI was assessed using Angina Frequency and Quality of Life domains from the Seattle Angina Questionnaire and the Short Form-12 Physical and Mental Component scales. Multivariable regression helped examine association between use of different CAM therapies and health status. RESULTS: Among 1884 patients not using CAM at the time of their AMI, 33% reported initiating ≥1 forms of CAM therapy 1 year following AMI: 62% adopted mind-body therapies, 42% adopted biological therapies, and 15% began using manipulative therapies. In both unadjusted and adjusted analyses, we found no association between different types of CAM use and health-status improvement after AMI. CONCLUSIONS: There was no association between CAM use and health-status recovery after AMI. Until randomized trials suggest otherwise, these findings underscore the importance of focusing on therapies with proven effectiveness after AMI.


Assuntos
Terapia Biológica , Nível de Saúde , Terapias Mente-Corpo , Manipulações Musculoesqueléticas , Infarto do Miocárdio/terapia , Idoso , Terapia Biológica/efeitos adversos , Distribuição de Qui-Quadrado , Feminino , Humanos , Modelos Lineares , Modelos Logísticos , Masculino , Saúde Mental , Pessoa de Meia-Idade , Terapias Mente-Corpo/efeitos adversos , Análise Multivariada , Manipulações Musculoesqueléticas/efeitos adversos , Infarto do Miocárdio/diagnóstico , Infarto do Miocárdio/fisiopatologia , Infarto do Miocárdio/psicologia , Qualidade de Vida , Sistema de Registros , Inquéritos e Questionários , Fatores de Tempo , Resultado do Tratamento , Estados Unidos
14.
Ann Thorac Surg ; 102(4): 1304-11, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27266420

RESUMO

BACKGROUND: Up to half of patients with non-ST-elevation myocardial infarction (NSTEMI) do not receive dual antiplatelet therapy before angiography "pretreatment" because of the risk of increased bleeding if coronary artery bypass grafting (CABG) operation is needed. Several models have been published that predict the likelihood of CABG after NSTEMI, but they have not been independently validated. The purpose of this study was to validate these models and improve the best one. METHODS: We studied patients with NSTEMI who were enrolled in the 24-center Translational Research Investigating Underlying Disparities in Acute Myocardial Infarction Patients' Health Status (TRIUMPH) registry between 2005 and 2008. Previous CABG prediction models were assessed using c-statistics and calibration assessments to determine the best model. Variables from TRIUMPH likely to be associated with CABG were tested to see whether they could improve the best model's performance. RESULTS: Among 2,473 patients with NSTEMI, 11.8% underwent in-hospital CABG. C-statistics for the Modified Thrombolysis in Myocardial Infarction, Treat Angina With Aggrastat and Determine the Cost of Therapy With an Invasive or Conservative Strategy-Thrombolysis in Myocardial Infarction 18, Poppe, and Global Risk of Acute Coronary Events (GRACE) models were 0.54, 0.61, 0.61, and 0.62, respectively. The GRACE model showed the best discrimination and calibration. From the TRIUMPH registry, preselected variables were added to the GRACE model but did not significantly improve model discrimination. A GRACE model risk score of less than 9 had high sensitivity (96%), thus making it useful for predicting patients with NSTEMI who were at low risk for requiring CABG, which included approximately 21% of patients with NSTEMI. CONCLUSIONS: This study could not improve on the GRACE model, which had the best predictive value for identifying a need for CABG after NSTEMI with a broader range of predicted risk levels and high sensitivity, especially in patients with scores lower than 9.


Assuntos
Ponte de Artéria Coronária/métodos , Doença da Artéria Coronariana/cirurgia , Infarto do Miocárdio sem Supradesnível do Segmento ST/cirurgia , Idoso , Angiografia Coronária/métodos , Ponte de Artéria Coronária/mortalidade , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/diagnóstico , Bases de Dados Factuais , Eletrocardiografia/métodos , Feminino , Seguimentos , Humanos , Funções Verossimilhança , Masculino , Pessoa de Meia-Idade , Modelos Cardiovasculares , Infarto do Miocárdio sem Supradesnível do Segmento ST/diagnóstico , Infarto do Miocárdio sem Supradesnível do Segmento ST/etiologia , Infarto do Miocárdio sem Supradesnível do Segmento ST/mortalidade , Valor Preditivo dos Testes , Pesquisa Qualitativa , Medição de Risco , Análise de Sobrevida , Fatores de Tempo , Resultado do Tratamento
15.
J Am Heart Assoc ; 5(6)2016 06 10.
Artigo em Inglês | MEDLINE | ID: mdl-27287700

RESUMO

BACKGROUND: Despite guideline recommendations, a significant number of patients with non-ST elevation myocardial infarction (NSTEMI) do not receive dual antiplatelet therapy (DAPT) before angiography "pretreatment." While there may be valid clinical reasons to not pretreat, such as concern for bleeding or multivessel disease warranting coronary artery bypass graft surgery, the degree of variability and factors associated with DAPT pretreatment are unknown. METHODS AND RESULTS: From the multicenter TRIUMPH registry, 1632 NSTEMI patients were not taking DAPT on admission and were included in the study cohort. Among the study patients, only 22% patients received DAPT pretreatment. A multivariable logistic regression model showed that race other than white or black (odds ratio [OR] 0.41, 95% CI 0.21-0.83), hemoglobin level (OR 1.18, 95% CI 1.08-1.29), patients' bleeding risk (assessed with NCDR CathPCI Bleeding Risk Score) (OR 0.85, 95% CI 0.74-0.99), and severe left ventricular dysfunction (OR 0.3, 95% CI 0.13-0.65) were the main predictors of pretreatment with DAPT, whereas likelihood of needing coronary artery bypass graft surgery (GRACE prediction model) was not (OR 1.09, 95% CI 0.88-1.35). Median ORs were calculated to assess variability of receiving DAPT pretreatment across sites after adjustment for patient characteristics. Receiving DAPT pretreatment varied substantially across sites (range 0-100%, mean OR 3.94, P<0.0001). CONCLUSIONS: While deviating from guideline-recommended DAPT pretreatment in patients with NSTEMI was associated with patient factors (eg, bleeding risk), marked variation was present across sites after accounting for patient-level characteristics. This suggests that site-level interventions are needed to improve concordance with current guidelines.


Assuntos
Infarto do Miocárdio sem Supradesnível do Segmento ST/tratamento farmacológico , Inibidores da Agregação Plaquetária/uso terapêutico , Padrões de Prática Médica/estatística & dados numéricos , Ponte de Artéria Coronária/estatística & dados numéricos , Quimioterapia Combinada , Feminino , Fidelidade a Diretrizes , Hemorragia/induzido quimicamente , Humanos , Masculino , Pessoa de Meia-Idade , Guias de Prática Clínica como Assunto , Sistema de Registros , Medição de Risco , Disfunção Ventricular Esquerda/tratamento farmacológico
16.
Am Heart J ; 175: 94-100, 2016 05.
Artigo em Inglês | MEDLINE | ID: mdl-27179728

RESUMO

BACKGROUND: A principal goal of treating patients with coronary artery disease (CAD) is to minimize angina and optimize quality of life. For this, physicians must accurately assess presence and frequency of patients' angina. The accuracy with which cardiologists estimate their patients' angina in contemporary, busy outpatient clinics across the United States (US) is unknown. METHODS: We enrolled patients with CAD across 25 US cardiology outpatient practices. Patients completed the Seattle Angina Questionnaire before their visit, which assessed their angina and quality of life over the prior 4 weeks. The Seattle Angina Questionnaire angina frequency domain categorized patients' angina as none, daily/weekly, or monthly. After the visit, cardiologists estimated the frequency of their patients' angina using the same categories. Kappa statistic helped to assess agreement between patient-reported and cardiologist-estimated angina. RESULTS: Among 1,257 outpatients with CAD, 67% reported no angina, 25% reported monthly angina, and 8% reported daily/weekly angina. When patients reported no angina, cardiologists accurately estimated this 93% of the time, but when patients reported monthly or daily/weekly angina symptoms, cardiologists agreed 17% and 69% of the time, respectively. Among patients with daily/weekly angina, 26% were noted as having no angina by their physicians. Agreement between patients' and cardiologists' reports (assessed by the kappa statistic) was 0.48 (95% CI 0.44-0.53), indicating moderate agreement. CONCLUSIONS: Among outpatients with stable CAD, there is substantial discordance between patient-reported and cardiologist-estimated burden of angina. Inclusion of patient-reported health status measures in routine clinical care may support better recognition of patients' symptoms by physicians.


Assuntos
Angina Estável , Autoavaliação Diagnóstica , Qualidade de Vida , Avaliação de Sintomas/métodos , Idoso , Angina Estável/diagnóstico , Angina Estável/epidemiologia , Angina Estável/psicologia , Austrália/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Estatística como Assunto , Inquéritos e Questionários
17.
Am Heart J ; 174: 167-72, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26995385

RESUMO

BACKGROUND: Although cardiopulmonary exercise (CPX) testing in patients with heart failure and reduced ejection fraction is well established, there are limited data on the value of CPX variables in patients with HF and preserved ejection fraction (HFpEF). We sought to determine the prognostic value of select CPX measures in patients with HFpEF. METHODS: This was a retrospective analysis of patients with HFpEF (ejection fraction ≥ 50%) who performed a CPX test between 1997 and 2010. Selected CPX variables included peak oxygen uptake (VO2), percent predicted maximum oxygen uptake (ppMVO2), minute ventilation to carbon dioxide production slope (VE/VCO2 slope) and exercise oscillatory ventilation (EOV). Separate Cox regression analyses were performed to assess the relationship between each CPX variable and a composite outcome of all-cause mortality or cardiac transplant. RESULTS: We identified 173 HFpEF patients (45% women, 58% non-white, age 54 ± 14 years) with complete CPX data. During a median follow-up of 5.2 years, there were 42 deaths and 5 cardiac transplants. The 1-, 3-, and 5-year cumulative event-free survival was 96%, 90%, and 82%, respectively. Based on the Wald statistic from the Cox regression analyses adjusted for age, sex, and ß-blockade therapy, ppMVO2 was the strongest predictor of the end point (Wald χ(2) = 15.0, hazard ratio per 10%, P < .001), followed by peak VO2 (Wald χ(2) = 11.8, P = .001). VE/VCO2 slope (Wald χ(2)= 0.4, P = .54) and EOV (Wald χ(2) = 0.15, P = .70) had no significant association to the composite outcome. CONCLUSION: These data support the prognostic utility of peak VO2 and ppMVO2 in patients with HFpEF. Additional studies are needed to define optimal cut points to identify low- and high-risk patients.


Assuntos
Teste de Esforço/tendências , Insuficiência Cardíaca/diagnóstico , Volume Sistólico/fisiologia , Cateterismo Cardíaco , Progressão da Doença , Intervalo Livre de Doença , Ecocardiografia , Feminino , Seguimentos , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Imagem de Perfusão do Miocárdio , Prognóstico , Reprodutibilidade dos Testes , Estudos Retrospectivos , Índice de Gravidade de Doença , Taxa de Sobrevida/tendências , Fatores de Tempo , Estados Unidos/epidemiologia
18.
Artigo em Inglês | MEDLINE | ID: mdl-28239488

RESUMO

AIMS: Almost a third of outpatients with chronic coronary artery disease (CAD) report having angina in the prior month, which is frequently under-recognized by their cardiologists. Whether under-recognition is associated with less treatment escalation to control angina, and potential underuse of treatment, is unknown. METHODS AND RESULTS: Patients with CAD from 25 US cardiology outpatient practices completed the Seattle Angina Questionnaire (SAQ) prior to their clinic visit, and angina was categorized as daily, weekly, monthly and no angina. Cardiologists (n=155) independently quantified patients' angina, blinded to patients' SAQ scores. Under-recognition was defined as the physician reporting a lower category of angina frequency than the patient. Among 1257 patients with CAD, 411 reported angina in the past month, of whom 178 (43.3%) patients were under-recognized. Treatment escalation-defined as intensification (up-titration or addition) of antianginal medications, referral for diagnostic testing or revascularization, or hospital admission-occurred in 106 (25.8%) patients with angina. Patients with under-recognized angina were less likely to get treatment escalation than patients whose angina was appropriately recognized (8.4% vs 39.1%, P<0.001). In a hierarchical multivariable logistic regression model adjusting for demographic and clinical characteristics, as well as the burden of angina, under-recognition remained strongly associated with a lack of treatment escalation (adjusted OR 0.10, 95% CI 0.04-0.21, P<0.001). CONCLUSIONS: Under-recognition of angina in cardiology outpatient practices is associated with less aggressive treatment escalation and may lead to poorer angina control. Standardizing clinical recognition of angina using validated tools could reduce under-recognition of angina, facilitate treatment, and potentially improve outcomes.


Assuntos
Angina Pectoris/diagnóstico , Doença da Artéria Coronariana/complicações , Isquemia Miocárdica/complicações , Padrões de Prática Médica/normas , Idoso , Idoso de 80 Anos ou mais , Angina Pectoris/tratamento farmacológico , Angina Pectoris/epidemiologia , Cardiologistas/estatística & dados numéricos , Fármacos Cardiovasculares/uso terapêutico , Competência Clínica/normas , Doença da Artéria Coronariana/epidemiologia , Doença da Artéria Coronariana/terapia , Estudos Transversais , Feminino , Nível de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Pacientes Ambulatoriais , Padrões de Prática Médica/estatística & dados numéricos , Prevalência , Indicadores de Qualidade em Assistência à Saúde , Estados Unidos/epidemiologia
19.
J Am Coll Cardiol ; 66(19): 2104-2113, 2015 Nov 10.
Artigo em Inglês | MEDLINE | ID: mdl-26541921

RESUMO

BACKGROUND: Up to 65% of patients with ST-segment elevation myocardial infarction (STEMI) have multivessel coronary artery disease (MVCAD). Long-term health status of STEMI patients after multivessel revascularization is unknown. OBJECTIVES: This study investigated the relationship between multivessel revascularization and health status outcomes (symptoms and quality of life [QoL]) in STEMI patients with MVCAD. METHODS: Using a U.S. myocardial infarction registry and the Seattle Angina Questionnaire (SAQ), we determined the health status of patients with STEMI and MVCAD at the time of STEMI and 1 year later. We assessed the association of multivessel revascularization during index hospitalization with 1-year health status using multivariable linear regression analysis, and also examined demographic, clinical, and angiographic factors associated with multivessel revascularization. RESULTS: Among 664 STEMI patients with MVCAD, 251 (38%) underwent multivessel revascularization. Most revascularizations were staged during the index hospitalization (64.1%), and 8.0% were staged after discharge, with 27.9% performed during primary percutaneous coronary intervention. Multivessel revascularization was associated with age and more diseased vessels. At 1 year, multivessel revascularization was independently associated with improved symptoms (4.5 points higher SAQ angina frequency score; 95% confidence interval [CI]: 1.0 to 7.9) and QoL (6.6 points higher SAQ QoL score; 95% CI: 2.7 to 10.6). One-year mortality was not different between those who did and did not undergo multivessel revascularization (3.6% vs. 3.4%; log-rank test p = 0.88). CONCLUSIONS: Multivessel revascularization improved angina and QoL in STEMI patients with MVCAD. Patient-centered outcomes should be considered in future trials of multivessel revascularization.


Assuntos
Doença da Artéria Coronariana/cirurgia , Eletrocardiografia , Nível de Saúde , Infarto do Miocárdio/cirurgia , Revascularização Miocárdica/métodos , Sistema de Registros , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/fisiopatologia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/complicações , Infarto do Miocárdio/fisiopatologia , Estudos Prospectivos , Resultado do Tratamento
20.
Thrombosis ; 2015: 175357, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26294971

RESUMO

Background. The Pulmonary Embolism Severity Index (PESI) score can risk-stratify patients with PE but its widespread use is uncertain. With the PESI, we compared length of hospital stay between low, moderate, and high risk PE patients and determined the number of low risk PE patients who were discharged early. Methods. PE patients admitted to St. Joseph Mercy Oakland Hospital from January 2005 to August 2010 were screened. PESI score stratified acute PE patients into low (<85), moderate (86-105), and high (>105) risk categories and their length of hospital stay was compared. Patients with low risk PE discharged early (≤3 days) were calculated. Results. Among 315 PE patients, 51.7% were at low risk. No significant difference in hospital stay between low (7.11 ± 3 d) and moderate (6.88 ± 2.9 d) risk, p > 0.05, as well as low and high risk (7.28 ± 3.0 d), p > 0.05, was found. 9% of low risk patients were discharged ≤ 3 days. Conclusions. There was no significant difference in length of hospital stay between low and high risk groups and only a small number of low risk patients were discharged from the hospital early suggesting that risk tools like PESI may not have a widespread use.

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