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1547 full-text articles. Page 1 of 75.

A Comparison Of Data Quality Assessment Checks In Six Data Sharing Networks, Tiffany J. Callahan, Alan E. Bauck, David Bertoch, Jeff Brown, Ritu Khare, Patrick B. Ryan, Jenny Staab, Meredith N. Zozus, Michael G. Kahn 2017 Computational Bioscience Program, University of Colorado Denver Anschutz Medical Campus

A Comparison Of Data Quality Assessment Checks In Six Data Sharing Networks, Tiffany J. Callahan, Alan E. Bauck, David Bertoch, Jeff Brown, Ritu Khare, Patrick B. Ryan, Jenny Staab, Meredith N. Zozus, Michael G. Kahn

eGEMs (Generating Evidence & Methods to improve patient outcomes)

Objective: To compare rule-based data quality (DQ) assessment approaches across multiple national clinical data sharing organizations.

Methods: Six organizations with established data quality assessment (DQA) programs provided documentation or source code describing current DQ checks. DQ checks were mapped to the categories within the data verification context of the harmonized DQA terminology. To ensure all DQ checks were consistently mapped, conventions were developed and four iterations of mapping performed. Difficult-to-map DQ checks were discussed with research team members until consensus was achieved.

Results: Participating organizations provided 11,026 DQ checks, of which 99.97% were successfully mapped to a DQA ...


Burden Of Psychosocial And Cognitive Impairment In Patients With Atrial Fibrillation, John A. Bostrom, Jane S. Saczynski, Alexandra M. Hajduk, Kevin Donahue, Lawrence S. Rosenthal, Clifford Browning, Cynthia Ennis, Kevin C. Floyd, Heather Richardson, Nada Esa, Jessica Ogarek, David D. McManus 2017 University of Massachusetts Medical School

Burden Of Psychosocial And Cognitive Impairment In Patients With Atrial Fibrillation, John A. Bostrom, Jane S. Saczynski, Alexandra M. Hajduk, Kevin Donahue, Lawrence S. Rosenthal, Clifford Browning, Cynthia Ennis, Kevin C. Floyd, Heather Richardson, Nada Esa, Jessica Ogarek, David D. Mcmanus

UMass Center for Clinical and Translational Science Supported Publications

BACKGROUND: Impairments in psychosocial status and cognition relate to poor clinical outcomes in patients with atrial fibrillation (AF). However, how often these conditions co-occur and associations between burden of psychosocial and cognitive impairment and quality of life (QoL) have not been systematically examined in patients with AF.

METHODS: A total of 218 patients with symptomatic AF were enrolled in a prospective study of AF and psychosocial factors between May 2013 and October 2014 at the University of Massachusetts Medical Center. Cognitive function, depression, and anxiety were assessed at baseline and AF-specific QoL was assessed 6 months after enrollment using validated ...


A New Journal Section: Patient Management, Forest W. Arnold, Rodrigo Cavallazzi 2017 Division of Infectious Diseases / University of Louisville, Louisville, KY, USA

A New Journal Section: Patient Management, Forest W. Arnold, Rodrigo Cavallazzi

The University of Louisville Journal of Respiratory Infections

No abstract provided.


Pneumonia Research And The Omics Revolution: It Is Time For Pneumomics, Julio A. Ramirez 2017 University of Louisville, Louisville, KY

Pneumonia Research And The Omics Revolution: It Is Time For Pneumomics, Julio A. Ramirez

The University of Louisville Journal of Respiratory Infections

No abstract provided.


Short Duration Of Antibiotic Therapy In Hospitalized Patients With Community-Acquired Pneumonia: Results From The Capo International Cohort Study, Alejandro Chirino Navarta, Paula Peyrani, Timothy L. Wiemken, Marcos I. Restrepo, James D. Chalmers, Carlos M. Luna, Francesco Blasi, Julio A. Ramirez, Stefano Aliberti 2017 Servicio de Neumonología, Hospital Italiano, Mendoza, Argentina

Short Duration Of Antibiotic Therapy In Hospitalized Patients With Community-Acquired Pneumonia: Results From The Capo International Cohort Study, Alejandro Chirino Navarta, Paula Peyrani, Timothy L. Wiemken, Marcos I. Restrepo, James D. Chalmers, Carlos M. Luna, Francesco Blasi, Julio A. Ramirez, Stefano Aliberti

The University of Louisville Journal of Respiratory Infections

Introduction: Experts suggest a short duration of antibiotic therapy (DOT) in responding patients with community-acquired pneumonia (CAP). The aim of this study was to evaluate clinical outcomes after hospital discharge among patients treated with short-course antibiotic therapy (SCT) vs. long-course antibiotic therapy (LCT) for CAP.

Methods: A secondary analysis of the Community-Acquired Pneumonia Organization (CAPO) database from January 2007 to June 2013 was performed, including hospitalized CAP patients who reached clinical stability within 5 days. Two groups were identified: patients who were treated with antibiotic therapy for a total duration of 5 days or less (SCT Group) vs. longer than ...


The Community-Acquired Pneumonia Organization (Capo) Cloud-Based Research Platform (The Capo-Cloud): Facilitating Data Sharing In Clinical Research, William A. Mattingly, Timothy L. Wiemken, Stephen P. Furmanek, Paula Peyrani, Robert R. Kelley, Julio A. Ramirez 2017 University of Louisville, Louisville, KY

The Community-Acquired Pneumonia Organization (Capo) Cloud-Based Research Platform (The Capo-Cloud): Facilitating Data Sharing In Clinical Research, William A. Mattingly, Timothy L. Wiemken, Stephen P. Furmanek, Paula Peyrani, Robert R. Kelley, Julio A. Ramirez

The University of Louisville Journal of Respiratory Infections

Background: Pneumonia is a costly and deadly respiratory disease that afflicts millions every year. Advances in pneumonia care require significant research investment and collaboration among pneumonia investigators. Despite the importance of data sharing for clinical research it remains difficult to share datasets with old and new investigators. We present CAPOCloud, a web-based pneumonia research platform intended to facilitate data sharing and make data more accessible to new investigators.

Methods: We establish the first two use cases for CAPOCloud to be the automatic subsetting and constraining of the CAPO database and the automatic summarization of the database in aggregate. We use ...


Predicting 30-Day Mortality In Hospitalized Patients With Community-Acquired Pneumonia Using Statistical And Machine Learning Approaches, Timothy L. Wiemken, Stephen P. Furmanek, William A. Mattingly, Brian E. Guinn, Rodrigo Cavallazzi, Rafael Fernandez-Botran, Leslie A Wolf, Connor L. English, Julio A. Ramirez 2017 University of Louisville, Louisville, KY

Predicting 30-Day Mortality In Hospitalized Patients With Community-Acquired Pneumonia Using Statistical And Machine Learning Approaches, Timothy L. Wiemken, Stephen P. Furmanek, William A. Mattingly, Brian E. Guinn, Rodrigo Cavallazzi, Rafael Fernandez-Botran, Leslie A Wolf, Connor L. English, Julio A. Ramirez

The University of Louisville Journal of Respiratory Infections

Background: Predicting if a hospitalized patient with community-acquired pneumonia (CAP) will or will not survive after admission to the hospital is important for research purposes as well as for institution of early patient management interventions. Although population-level mortality prediction scores for these patients have been around for many years, novel patient-level algorithms are needed. The objective of this study was to assess several statistical and machine learning models for their ability to predict 30-day mortality in hospitalized patients with CAP.

Methods: This was a secondary analysis of the University of Louisville (UofL) Pneumonia Study database. Six different statistical and/or ...


Clinical Research: Educational Videos - The Process Of Clinical Research: Step-By-Step From Idea To Publication, Julio A. Ramirez 2017 University of Louisville, Louisville, KY

Clinical Research: Educational Videos - The Process Of Clinical Research: Step-By-Step From Idea To Publication, Julio A. Ramirez

The University of Louisville Journal of Respiratory Infections

Clinical research can be defined as the creation and dissemination of new knowledge with the goal to improve outcomes in patients with a particular health problem. In this short video, Dr. Julio Ramirez, from the University of Louisville, offers an overview of the process of clinical research and describe how an investigator moves from the generation of an idea to the publication of study findings.


A 49-Year-Old Woman With Chronic Skin Lesions, Acute Mental Status Changes And New Pulmonary Infiltrate: Case Discussion From The University Of Louisville Hospital, Bhavani Puskur, Youssef Khafateh, Srikant Ramachandruni, Veronica Corcino, Mark Burns, Forest W. Arnold 2017 University of Louisville, Louisville, KY

A 49-Year-Old Woman With Chronic Skin Lesions, Acute Mental Status Changes And New Pulmonary Infiltrate: Case Discussion From The University Of Louisville Hospital, Bhavani Puskur, Youssef Khafateh, Srikant Ramachandruni, Veronica Corcino, Mark Burns, Forest W. Arnold

The University of Louisville Journal of Respiratory Infections

No abstract provided.


Impact Of Temperature Relative Humidity And Absolute Humidity On The Incidence Of Hospitalizations For Lower Respiratory Tract Infections Due To Influenza, Rhinovirus, And Respiratory Syncytial Virus: Results From Community-Acquired Pneumonia Organization (Capo) International Cohort Study, Timothy L. Wiemken, William A. Mattingly, Stephen P. Furmanek, Brian E. Guinn, Connor L. English, Ruth Carrico, Paula Peyrani, Julio A. Ramirez 2017 University of Louisville, Louisville, KY

Impact Of Temperature Relative Humidity And Absolute Humidity On The Incidence Of Hospitalizations For Lower Respiratory Tract Infections Due To Influenza, Rhinovirus, And Respiratory Syncytial Virus: Results From Community-Acquired Pneumonia Organization (Capo) International Cohort Study, Timothy L. Wiemken, William A. Mattingly, Stephen P. Furmanek, Brian E. Guinn, Connor L. English, Ruth Carrico, Paula Peyrani, Julio A. Ramirez

The University of Louisville Journal of Respiratory Infections

Abstract

Background: Transmissibility of several etiologies of lower respiratory tract infections (LRTI) may vary based on outdoor climate factors. The objective of this study was to evaluate the impact of outdoor temperature, relative humidity, and absolute humidity on the incidence of hospitalizations for lower respiratory tract infections due to influenza, rhinovirus, and respiratory syncytial virus (RSV).

Methods: This was a secondary analysis of an ancillary study of the Community Acquired Pneumonia Organization (CAPO) database. Respiratory viruses were detected using the Luminex xTAG respiratory viral panel. Climate factors were obtained from the National Weather Service. Adjusted Poisson regression models with robust ...


Analysis Of The Local And Systemic Cytokine Response Profiles In Patients With Community-Acquired Pneumonia. Relationship With Disease Severity And Outcomes., Rafael Fernandez-Botran, Timothy Lee Wiemken, Robert R. Kelley, Paula Peyrani, Jose Bordon, Rodrigo Cavallazzi, Julio A. Ramirez 2017 University of Louisville

Analysis Of The Local And Systemic Cytokine Response Profiles In Patients With Community-Acquired Pneumonia. Relationship With Disease Severity And Outcomes., Rafael Fernandez-Botran, Timothy Lee Wiemken, Robert R. Kelley, Paula Peyrani, Jose Bordon, Rodrigo Cavallazzi, Julio A. Ramirez

The University of Louisville Journal of Respiratory Infections

The goals of this study were to investigate the relationship of systemic and local cytokine responses with time to clinical stability (TCS) in patients with community-acquired pneumonia (CAP) and to develop a model to integrate multiple cytokine data into “cytokine response profiles” based on local vs. systemic and pro- vs. anti-inflammatory cytokine patterns in order to better understand their relationships with measures of CAP severity and outcomes. Forty hospitalized patients enrolled through the Community Acquired Pneumonia Inflammatory Study Group (CAPISG) were analyzed. Based on the ranked distribution of the levels of eight different pro-inflammatory cytokines and chemokines (IL-1b, IL-6, IL-8 ...


Impact Of Obesity On Mortality In Hospitalized Patients With Pneumonia Due To 2009 H1n1 Influenza A Virus Versus Other Etiologies, Martin A. Espinosa-Ginic, Ryan T. Hurt, Stephen P. Furmanek, Paula Peyrani, Julio A. Ramirez, Timothy Lee Wiemken, The CAPO Investigators 2017 Saint Thomas Heart, Saint Thomas Midtown and West Hospitals, Nashville, TN

Impact Of Obesity On Mortality In Hospitalized Patients With Pneumonia Due To 2009 H1n1 Influenza A Virus Versus Other Etiologies, Martin A. Espinosa-Ginic, Ryan T. Hurt, Stephen P. Furmanek, Paula Peyrani, Julio A. Ramirez, Timothy Lee Wiemken, The Capo Investigators

The University of Louisville Journal of Respiratory Infections

Background: Reports from the 2009 H1N1 influenza A virus (2009 H1N1) pandemic indicate increased mortality in obese patients hospitalized with pneumonia. However, articles published prior to the pandemic have suggested that obesity may be a protective factor for mortality in these patients. The objective of this study was to compare the impact of obesity on mortality in hospitalized patients with pneumonia due to the 2009 H1N1 versus pneumonia due to other etiologies.

Methods: This was a secondary analysis of the CAPO international cohort study. Study groups were defined as follows: Group One, pneumonia due to 2009 H1N1: Patients hospitalized with ...


Poster Session Program: 2017 Umass Center For Clinical And Translational Science Research Retreat, UMCCTS Research Retreat 2017 University of Massachusetts Medical School

Poster Session Program: 2017 Umass Center For Clinical And Translational Science Research Retreat, Umccts Research Retreat

UMass Center for Clinical and Translational Science Research Retreat

Poster Session Program for the 7th annual UMass Center for Clinical and Translational Science Research Retreat, held Tuesday, May 16, 2017 at the University of Massachusetts Medical School, Worcester, MA.

View poster abstracts


Invitro-Q: A High-Throughput Biosensor Used To Evaluate The Mechanism Of Phagocytosis Of Macrophages Using Different Particles, Marynawal Abdou, Abiche H. Dewilde 2017 Invitrometrix

Invitro-Q: A High-Throughput Biosensor Used To Evaluate The Mechanism Of Phagocytosis Of Macrophages Using Different Particles, Marynawal Abdou, Abiche H. Dewilde

UMass Center for Clinical and Translational Science Research Retreat

The method of phagocytosis of a particle can provide information on how macrophages respond to a detected particle. The response elicited varies based on the nature of the particle and in turn changes which receptor-mediated phagocytosis is initiated. We have developed a multi-well cell-based sensor that can monitor real-time biological changes in living cells, such as mass redistribution, and viscoelasticity. This system provides unique kinetic information regarding the phenotypic change in the cells post treatment. As a proof of principle study, we evaluate macrophage phagocytosis using three different particles: latex beads, Zymosan A, and Staphylococcus aureus. These studies show the ...


Frequent Cannabis Users Have Reduced Odds For Non Alcoholic Fatty Liver Disease, Adeyinka Adejumo, Nnaemeka Onyeakusi, Samson Alliu, Ogooluwa A. Ojelabi 2017 University of Massachusetts Medical School

Frequent Cannabis Users Have Reduced Odds For Non Alcoholic Fatty Liver Disease, Adeyinka Adejumo, Nnaemeka Onyeakusi, Samson Alliu, Ogooluwa A. Ojelabi

UMass Center for Clinical and Translational Science Research Retreat

Background: Cannabis is the world's most widely used illicit drug. Though marijuana use has been revealed to impact the prevalence of diabetes, hypertension, and obesity - established risk factors for Non-Alcoholic Fatty Liver (NAFLD), it's relationship with NAFLD remains unknown.

Aim: We sought to investigate the association between cannabis use and NAFLD.

Methods: From the National Health and Nutrition Examination Survey (NHANES III, 1988–1994) survey data, we retrieved data from individuals aged 20 to 60 years who had an abdominal ultrasound for evaluation for hepatic steatosis (n=10,682). We then identified three cannabis use groups: never used ...


The Utilization Of Video Capsule Endoscopy In Patients With Peutz-Jeghers Syndrome, Yasir Al-Azzawai, Erik Holzwanger, David R. Cave 2017 University of Massachusetts Medical School

The Utilization Of Video Capsule Endoscopy In Patients With Peutz-Jeghers Syndrome, Yasir Al-Azzawai, Erik Holzwanger, David R. Cave

UMass Center for Clinical and Translational Science Research Retreat

AIM: Our aim is to demonstrate the utilization of VCE in the patients with Peutz–Jeghers syndrome (PJS) and evaluate the distribution of the polyps in each part of the small intestine and the percentage of patients with PJS who developed complications.

METHODS: Single center, retrospective chart review study of outpatients with PJS who underwent a video capsule endoscopy study between January 2006 and January2016.

RESULTS: A total of 16 patients were identified with PJS; mean age was 40 years. Female gender was predominant with 9 patients. Polyps were found in the duodenum, jejunum and ileum in 33%, 80% and ...


Does Pre-Stroke Statin Use Influence Survival And Institionalization After Hospital Discharge?, Matthew Alcusky, A. L. Hume, Kate L. Lapane 2017 University of Massachusetts Medical School

Does Pre-Stroke Statin Use Influence Survival And Institionalization After Hospital Discharge?, Matthew Alcusky, A. L. Hume, Kate L. Lapane

UMass Center for Clinical and Translational Science Research Retreat

Background: Meta-analytic findings suggest statin exposure at the onset of acute ischemic stroke (AIS) may improve outcomes. Whether this applies to very old, clinically complex patients remains unclear.

Objective: To compare survival and the composite outcome death/institutionalization between statin users and non-users in a national cohort of AIS patients rehabilitated in skilled nursing facilities (SNF).

Methods: From Medicare Part A claims, we identified 18,551 community-dwelling older adults hospitalized for AIS between 04/01/11-09/02/2012 and discharged to a SNF. Pre-stroke statin use and dose intensity were defined using Part D claims (high intensity, low/intermediate intensity ...


Predictors Of Cardiac Mortality In The Ccu: A Retrospective Study In A Tertiary Center, Summer Aldrugh, Aditya Vaze, Adedotun Anthony Ogunsua, Gloria Shan, Amrit V. Vinod, Modupeola Diyaolu, Craig Smith 2017 University of Massachusetts Medical School

Predictors Of Cardiac Mortality In The Ccu: A Retrospective Study In A Tertiary Center, Summer Aldrugh, Aditya Vaze, Adedotun Anthony Ogunsua, Gloria Shan, Amrit V. Vinod, Modupeola Diyaolu, Craig Smith

UMass Center for Clinical and Translational Science Research Retreat

Background: Although prior studies have linked troponin I (TnI) elevation, serum sodium (Na) fluctuation, and reduced ejection fraction (EF) with an increased mortality in the medical/surgical critical care units, this has not been validated in the CCU. We aim to identify clinical and laboratory factors to predict cardiac related length of survival (LOS) in the CCU.

Methods: We retrospectively analyzed 134 consecutive patients who were admitted to the CCU from December 2012 to March 2015, and who died during that admission. We used student T-test, correlation matrices, and Framingham risk factors adjusted multivariable logistic regression models to examine the ...


Association Between Psychosocial Factors, Quality Of Life And Atrial Fibrillation, Summer Aldrugh, Mayank Sardana, Darleen M. Lessard, Jane S. Saczynski, David D. McManus 2017 University of Massachusetts Medical School

Association Between Psychosocial Factors, Quality Of Life And Atrial Fibrillation, Summer Aldrugh, Mayank Sardana, Darleen M. Lessard, Jane S. Saczynski, David D. Mcmanus

UMass Center for Clinical and Translational Science Research Retreat

Background: Atrial fibrillation (AF) is associated with cognitive and psychosocial comorbidities, and poorer quality of life (QOL). In this study, we aimed to study the association between cognition, psychosocial status and QOL at baseline and AF recurrence.

Methods: We enrolled 222 symptomatic AF patients (64±10.0 years, 36% women) treated with a rhythm-control strategy. We performed cognitive, psychosocial, and QOL assessments using Montreal cognitive assessment (MOCA, cognitive impairment

Results: A total of 123 (55%) participants experienced an AF recurrence over the 6-month follow-up period. Participants with an AF recurrence had higher rates of depression (31% vs.14%, p=0 ...


An Innovative Nurse-Managed Transition Clinic For Adolescents And Young Adults With Spina Bifida: A Pilot Study, Mohammad Alkawaldeh, Rebecca Sherlock, Estranda Carlos, Erika Alkhawaldeh 2017 University of Massachusetts Amherst

An Innovative Nurse-Managed Transition Clinic For Adolescents And Young Adults With Spina Bifida: A Pilot Study, Mohammad Alkawaldeh, Rebecca Sherlock, Estranda Carlos, Erika Alkhawaldeh

UMass Center for Clinical and Translational Science Research Retreat

Background. Transition from pediatric to adult care for patients with complex illness is challenging. The Spina Bifida Center at Boston Children’s Hospital (SBC) has approximately 650 patients, of which 25% (N=162) are ≥ 18 years of age. The SBC has not had a structured paradigm for successful transition. A first transition clinic with our pediatric and adult care urology partners was initiated in August 2016.

Methods. A 20 question (TRAQ: Transition Readiness Assessment Questionnaire) paper survey was distributed to patients in the first Spina Bifida Transition Clinic at Boston Children's Hospital. TRAQ is a validated, patient-centered questionnaire which ...


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