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Improvement Cycles in Medical Education: From Quality Improvement to Patient Care and Clinical Research 医学教育的改进周期:从质量改进到病人护理和临床研究
Pub Date : 2021-01-01 DOI: 10.18297/jri/vol5/iss1/22
Julio Ramirez
Improvement cycles are regularly used by performance improvement teams to optimize patients’ outcomes by improving the quality of care. One of the best-known cycles for performance improvement in healthcare is the Plan-Do-Study-Act (PDSA) cycle (Figure 1a).[1] During the first phase, Plan, we identify barriers to optimal care, develop a plan to implement new interventions, and identify the outcomes that will be monitored; during the second phase, Do, the new interventions are implemented; during the third phase, Study, we measure the outcomes defined in the planning phase to assess improvement; and during the fourth phase, Act, we make changes to our practice before beginning the next iteration of the cycle to improve implementation.
绩效改进小组经常使用改进周期,通过提高护理质量来优化患者的结果。在医疗保健领域,最著名的绩效改进周期之一是计划-执行-研究-行动(PDSA)周期(图1a)。[1]在第一阶段,计划,我们确定最佳护理的障碍,制定实施新干预措施的计划,并确定将监测的结果;在第二阶段,实施新的干预措施;在第三阶段,研究阶段,我们衡量在计划阶段定义的结果,以评估改进;在第四个阶段Act中,我们在开始下一个迭代周期之前对我们的实践进行更改,以改进实施。
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引用次数: 0
International Respiratory Infections Society COVID Research Conversations: Podcast 2 with Dr. Michael S. Niderman and Dr. Edward J. Schenck 国际呼吸道感染学会COVID研究对话:播客2与Michael S. Niderman博士和Edward J. Schenck博士
Pub Date : 2021-01-01 DOI: 10.18297/jri/vol5/iss1/6
Julio A. Ramirez
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引用次数: 0
Characteristics and outcomes of bacteremic pneumococcal pneumonia of patients with and without HIV infection in Argentina 阿根廷HIV感染者和非HIV感染者细菌性肺炎球菌肺炎的特点和结局
Pub Date : 2021-01-01 DOI: 10.18297/jri/vol5/iss1/17
Alejandra González, Mariano Fielli, Cytia Guzmán, G. Yusti, Pablo Idoyaga, A. Fernández
Streptococcus pneumoniae is the main causative agent of pneumonia, with a 10 to 25 percent rate of isolation in blood cultures. Controversies exist regarding the prognostic impact of a history of human immunodeficiency virus (HIV) infection on community-acquired pneumonia. The aim of our work was to analyze and compare the clinical presentation, radiological findings and progression of pneumococcal pneumonia in patients infected with and not infected with HIV. We retrospectively analyzed adult patients with positive blood cultures for Streptococcus pneumoniae and clinical and radiological findings compatible with pneumonia in the period between January 2012 and May 2017. Age, sex, comorbidities, clinical and laboratory variables, radiological severity, progression and mortality were analyzed. Comparative analysis between HIV-positive and -negative patients was carried out. Receiver operating curves (ROC) for CURB65 were performed to predict mortality in both groups. We included 107 patients (21 HIV-positive and 86 HIV-negative). HIV patients were on average younger (38 vs 58 years) with lower hematocrits (31.7 vs 36.5%) and fewer comorbidities (47 vs 72%). Overall mortality was 36 percent, and the area under the curve (AUC) of the CURB-65 ROC was 0.69 (95% confidence interval: 0.58–0.79) for all patients without differences between the two groups. Patients with a history of HIV infection had the same progression and mortality as the group of patients without that background.
肺炎链球菌是肺炎的主要病原体,在血液培养中有10%至25%的分离率。关于人类免疫缺陷病毒(HIV)感染史对社区获得性肺炎的预后影响存在争议。我们工作的目的是分析和比较感染和未感染艾滋病毒的患者肺炎球菌肺炎的临床表现、放射学表现和进展。我们回顾性分析了2012年1月至2017年5月期间肺炎链球菌血培养阳性、临床和影像学表现与肺炎相符的成年患者。分析年龄、性别、合并症、临床和实验室变量、放射学严重程度、进展和死亡率。对hiv阳性和阴性患者进行对比分析。采用CURB65的受试者工作曲线(ROC)预测两组患者的死亡率。我们纳入107例患者(21例hiv阳性,86例hiv阴性)。HIV患者平均年龄更年轻(38岁vs 58岁),红细胞比容更低(31.7比36.5%),合并症更少(47比72%)。两组患者的总死亡率为36%,CURB-65 ROC曲线下面积(AUC)为0.69(95%可信区间:0.58-0.79)。有HIV感染史的患者与无此背景的患者具有相同的进展和死亡率。
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引用次数: 0
Prion Disease: A Challenging Diagnosis 朊病毒病:一个具有挑战性的诊断
Pub Date : 2021-01-01 DOI: 10.18297/jri/vol5/iss1/29
Jeffrey F. Spindel
Introduction: Human prion diseases are a group of rare en- cephalopathies resulting in rapidly progressive dementia and ultimately death. While there are no effective treatments for any form of prion disease, prompt and efficient diagnosis is essential to prevent the spread of the self-propagating pro- tein, which may occur through aerosols, and avoid unnecessary or invasive testing. Diagnosis relies largely on physical examination, with many nonspecific findings, and laboratory testing, which has wide ranges of reported accuracy and high false positive rates with diseases such as Alzheimer’s dementia. Methods: Patients who underwent testing for prion dis- ease were retrospectively identified from the electronic health records at a single-center university hospital. Presenting symptoms, as well as laboratory, radiographic, and electroencephalogram findings, were recorded and analyzed by group of final diagnosis, including prion disease, not prion disease, and undiagnosed. Results: There were 27 patients identified, two who had a final diagnosis of prion disease, 20 who had a formal diagnosis other than prion disease, and five who remained undiagnosed until death. There was a high degree of overlap in present- ing symptoms. A high rate of false positive laboratory values, higher than previously reported, occurred for both the protein 14-3-3
人类朊病毒疾病是一组罕见的脑病,可导致迅速进展的痴呆和最终死亡。虽然对任何形式的朊病毒疾病都没有有效的治疗方法,但及时和有效的诊断对于防止可能通过气溶胶传播的自我繁殖蛋白的传播以及避免不必要的或侵入性的检测至关重要。诊断在很大程度上依赖于身体检查,有许多非特异性的发现,以及实验室测试,报告的准确性范围很广,对阿尔茨海默氏痴呆症等疾病的假阳性率很高。方法:回顾性分析某单中心大学医院电子病历中接受朊病毒疾病检测的患者。根据最终诊断(包括朊病毒病、非朊病毒病和未确诊)分组,记录并分析出现的症状以及实验室、放射学和脑电图结果。结果:共发现27例患者,其中2例最终诊断为朊病毒病,20例正式诊断为非朊病毒病,5例未确诊至死亡。目前的症状有高度的重叠。两种蛋白14-3-3的实验室假阳性率均高于先前报道
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引用次数: 0
COVID-19 Detection from Chest X-ray Images using CNNs Models: Further Evidence from Deep Transfer Learning 使用cnn模型从胸部x射线图像中检测COVID-19:来自深度迁移学习的进一步证据
Pub Date : 2020-06-18 DOI: 10.2139/ssrn.3630150
Mohamed Samir Boudrioua
In this study we revisit the identification of COVID-19 from chest x-ray images using Deep Learning. We collect a relatively large COVID-19 dataset comparing with previous studies that contains 309 real COVID-19 chest x-ray images. We prepare also 2000 chest x-ray images of pneumonia cases and 1000 images of healthy chest cases. Deep Transfer Learning is used to detect abnormalities in our images dataset. We fine-tune three pre-trained deep convolutional neural networks (CNNs) models on a training dataset; DenseNet 121, NASNetLarge and NASNetMobile. The evaluation of our models on a test dataset shows that these models achieve a sensitivity rate of around 99.45 % on average, and a specificity rate of around 99.5 % on average. These results could be helpful for an automatic diagnosis of COVID-19 infections, but the clinical diagnosis stills always necessary.
在这项研究中,我们重新审视了使用深度学习从胸部x射线图像中识别COVID-19的方法。与之前的研究相比,我们收集了一个相对较大的COVID-19数据集,其中包含309张真实的COVID-19胸部x线图像。我们还准备了2000例肺炎病例的胸部x线图像和1000例健康胸部图像。深度迁移学习用于检测图像数据集中的异常情况。我们在训练数据集上微调三个预训练的深度卷积神经网络(cnn)模型;DenseNet 121, NASNetLarge和NASNetMobile。我们的模型在测试数据集上的评估表明,这些模型的平均灵敏度约为99.45%,平均特异性约为99.5%。这些结果可能有助于COVID-19感染的自动诊断,但临床诊断仍然是必要的。
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引用次数: 17
COPD exacerbation caused by SARS-CoV-2: A Case Report from the Louisville COVID-19 Surveillance Program 由SARS-CoV-2引起的COPD加重:路易斯维尔COVID-19监测项目的病例报告
Pub Date : 2020-04-08 DOI: 10.18297/JRI/VOL4/ISS1/5
F. Arnold, K. Mahmood, Angeline Prabhu, Darmaan Aden, Anupama Raghuram, Mark V. Burns, Leslie A Beavin, D. Chung, K. Palmer, J. Ramirez
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引用次数: 6
Characteristics and Outcomes of Adults Hospitalized with SARS-CoV-2 Community-Acquired Pneumonia in Louisville, Kentucky 肯塔基州路易斯维尔市SARS-CoV-2社区获得性肺炎住院成人的特征和结局
Pub Date : 2020-01-01 DOI: 10.18297/jri/vol4/iss1/72
J. Ramirez
Background: Patients infected with the novel coronavirus SARS-CoV-2 are frequently hospitalized with community-acquired pneumonia (CAP). The objective of this study was to define the clinical characteristics and outcomes of hospitalized patients with SARS-CoV-2 CAP in the city of Louisville, KY. Methods: This was a retrospective observational study of 700 patients with SARS-CoV-2 infection hospitalized to eight of the adult hospitals in the city of Louisville. Patients with 1) a positive RT-PCR for SARS-CoV-2, 2) fever, cough, or shortness of breath, and 3) an infiltrate at chest imaging were defined as having SARS-CoV-2 CAP. Demographic characteristics of the study population were compared with census data from the city of Louisville. For each patient more than 500 variables were abstracted from electronic medical records and recorded using Research Electronic Data Capture software. Data was analyzed by descriptive and inferential statistics using R version 3.4.0. Results: SARS-CoV-2 CAP was identified in 632 (90%) patients hospitalized with COVID-19. The median age of the patients was 63 years, 53% were females, 31% were black and 12% Hispanic. The most frequent comorbidities were hypertension (56%), obesity (50%), and diabetes (33%). Mortality was 17% for the total population and 34% for the 249 patients admitted to ICU. For each category of race, ethnicity and comorbidities, the proportion of hospitalized patients with SARS-CoV-2 CAP was significantly different when compared to the Louisville population (p < 0.001). Conclusion: Patients of black race, Hispanic ethnicity, and patients with history of hypertension, obesity or diabetes are overrepresented among hospitalized patients with SARS-CoV-2 CAP when compared to the Louisville population. Hospitalized patients with SARS-CoV-2 CAP are likely to require ICU care, with death occurring in approximately one of six hospitalizations.
背景:新型冠状病毒SARS-CoV-2感染患者经常因社区获得性肺炎(CAP)住院。本研究的目的是确定肯塔基州路易斯维尔市住院的SARS-CoV-2 CAP患者的临床特征和结局。方法:对路易斯维尔市8家成人医院收治的700例SARS-CoV-2感染患者进行回顾性观察研究。1) SARS-CoV-2 RT-PCR阳性,2)发热、咳嗽或呼吸短促,以及3)胸部显像浸润的患者被定义为患有SARS-CoV-2 CAP。将研究人群的人口统计学特征与路易斯维尔市的人口普查数据进行比较。对于每个患者,从电子病历中提取500多个变量,并使用Research电子数据捕获软件进行记录。使用R 3.4.0版本对数据进行描述性统计和推理统计。结果:632例(90%)新冠肺炎住院患者检出SARS-CoV-2 CAP。患者的中位年龄为63岁,女性占53%,黑人占31%,西班牙裔占12%。最常见的合并症是高血压(56%)、肥胖(50%)和糖尿病(33%)。总体死亡率为17%,249例ICU患者死亡率为34%。与路易斯维尔人群相比,对于每个种族、民族和合并症类别,SARS-CoV-2 CAP住院患者的比例存在显著差异(p < 0.001)。结论:与路易斯维尔人口相比,黑人、西班牙裔以及有高血压、肥胖或糖尿病史的患者在住院的SARS-CoV-2 CAP患者中所占比例过高。感染SARS-CoV-2 CAP的住院患者可能需要ICU护理,大约六分之一的住院患者会死亡。
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引用次数: 11
Life in the Time of COVID COVID时代的生活
Pub Date : 2020-01-01 DOI: 10.18297/jri/vol4/iss1/12
Julio A. Ramirez
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引用次数: 1
Community-Acquired Pneumonia due to Endemic Human Coronaviruses compared to 2019 Novel Coronavirus: A Review 地方性人类冠状病毒引起的社区获得性肺炎与2019年新型冠状病毒的比较:综述
Pub Date : 2020-01-01 DOI: 10.18297/RGH/VOL4/ISS1/2
J. Ramirez, R. Carrico, R. Cavallazzi, Leslie A Beavin, Anupama Raghuram, Mark V. Burns, K. Mahmood, Darmaan Aden, Angeline Prabhu, Dawn Balcom, S. Furmanek, L. Wolf, K. Palmer, M. Tella, Connor Glick, F. Arnold
ULJRI | https://doi.org/10.18297/jri/vol4/iss1/2 1 Abstract The human coronaviruses (HCoVs) are an important etiology of community-acquired respiratory tract infections. Community-acquired pneumonia (CAP) may be caused by serotypes of endemic HCoVs or highly pathogenic HCoVs. In this review we compared the clinical characteristic, management, outcomes, and infection control practices for patients with CAP due to endemic HCoVs versus patients with CAP due to 2019 novel coronavirus (SARS-CoV-2).
摘要人冠状病毒(HCoVs)是社区获得性呼吸道感染的重要病原。社区获得性肺炎(CAP)可能由地方性hcov或高致病性hcov的血清型引起。在本综述中,我们比较了地方性hcov引起的CAP患者与2019年新型冠状病毒(SARS-CoV-2)引起的CAP患者的临床特征、管理、结局和感染控制措施。
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引用次数: 4
How Immune T-Cell Augmentation Can Help Prevent COVID-19: A Possible Nutritional Solution Using Ketogenic Lifestyle 免疫t细胞增强如何帮助预防COVID-19:使用生酮生活方式的可能营养解决方案
Pub Date : 2020-01-01 DOI: 10.18297/JRI/VOL4/ISS1/7
Kamepalli, Fidsa, Cwsp, R. K
It is time we realize that food is a form of healthcare and promote a proper human dietary lifestyle. What is normal for one person may be poison for another. Being and getting healthy should not be predicated by any disease or infection that is out there. We human beings, who have been living with microbes in and on us, should not be afraid of the bug of the day. Whatever we do to survive as a human, depends on complex interactions of each one’s immune system with their own environment and how their unique genetic system interacts with epigenetic mechanisms with food, being the biggest influence. The interaction between multiple factors (environment, lifestyle, genetic/epigenetics, microbiome, lipidology, and immunology) predispose or protect one from acute or chronic disease processes and nutrition is the most important stimulation human genes get influenced by (Figure 1). The current mass medicine mindset helps with population-based theory generation, but the real solutions must be based on the N=1 personalized approach—if we have to fight the bug of the day. The dietary lifestyle one follows has a lot to do with the outcome of a disease process.
是时候让我们意识到食物是一种健康的形式,并提倡一种适当的人类饮食生活方式。对一个人来说正常的事对另一个人来说可能是毒药。保持健康不应该以任何疾病或感染为前提。我们人类,一直与微生物生活在一起,我们不应该害怕今天的虫子。无论我们作为人类做什么来生存,都取决于每个人的免疫系统与自身环境的复杂相互作用,以及他们独特的遗传系统如何与表观遗传机制相互作用,其中影响最大的是食物。多种因素(环境、生活方式、遗传/表观遗传学、微生物组、脂质学和免疫学)之间的相互作用,使一个人易患或免于急性或慢性疾病的进程和营养,是人类基因受到影响的最重要的刺激(图1)。目前的大众医学思维有助于以人口为基础的理论生成,但真正的解决方案必须基于N=1的个性化方法——如果我们要与当今的细菌作斗争的话。人们遵循的饮食生活方式与疾病过程的结果有很大关系。
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引用次数: 8
期刊
The University of Louisville journal of respiratory infections
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