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Infectious Disease Commons

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University of Nebraska Medical Center

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Full-Text Articles in Infectious Disease

Real-Time Electronic Drug Monitoring: Experiences From A Multinational Phase 3 Clinical Trial To Prevent Multidrug-Resistant Tb, T. Jimah, J.E. Haberer, K.R. Amico, J. Tinkamanyire, M.A. Kendall, S. Moonsamy, R.T. Khan, K.B.F. Fetalvero, N. Suryavanshi, A. Gupta, A.C. Hesseling, Susan Swindells, G. Churchyard Jan 2026

Real-Time Electronic Drug Monitoring: Experiences From A Multinational Phase 3 Clinical Trial To Prevent Multidrug-Resistant Tb, T. Jimah, J.E. Haberer, K.R. Amico, J. Tinkamanyire, M.A. Kendall, S. Moonsamy, R.T. Khan, K.B.F. Fetalvero, N. Suryavanshi, A. Gupta, A.C. Hesseling, Susan Swindells, G. Churchyard

Journal Articles: Infectious Diseases

OBJECTIVE: We describe the experience of implementing real-time electronic drug monitoring (EDM) within a clinical trial to prevent multidrug-resistant TB (MDR-TB) among high-risk household contacts.

METHODS: The Protecting Households On Exposure to Newly Diagnosed Index Multidrug-Resistant Tuberculosis Patients (PHOENIx) trial is a phase 3, open-label, cluster-randomised clinical trial conducted in 31 sites in Africa, Asia, and Latin America. Household contacts of adults with MDR-TB were enrolled from June 2019 to January 2025, each receiving an EDM device to monitor adherence to TB preventive therapy. Here, we review selection of the adherence monitoring approach and key procedures implemented to support EDM …


Acceptability Of Corticosteroid Use In The Treatment Of Infant Bronchiolitis: Utilizing The Theoretical Framework Of Acceptability To Design Research Instruments, Caroline R. Smetanka Dec 2025

Acceptability Of Corticosteroid Use In The Treatment Of Infant Bronchiolitis: Utilizing The Theoretical Framework Of Acceptability To Design Research Instruments, Caroline R. Smetanka

Capstone Experience: Master of Public Health

Bronchiolitis is the leading cause of hospitalization among infants under six months, yet treatment remains largely supportive due to clinical guidelines that discourage pharmacologic intervention. Recent research suggests that bronchiolitis is not a uniform condition, and a subgroup of infants (those classified within “Profile A”) may benefit from targeted corticosteroid therapy. However, these treatments remain outside current clinical guidelines, and their successful adoption depends on stakeholder acceptability. This Capstone project developed and refined four data collection instruments- two questionnaires and two interview guides- designed to assess how healthcare providers and caregivers perceive the acceptability of corticosteroid treatment for Profile A …


Immune Thrombocytopenic Purpura Association With Epstein-Barr Virus, Amer Aldamouk, Bachr Masri, Ali Khan, Pulkita Uppal Jun 2025

Immune Thrombocytopenic Purpura Association With Epstein-Barr Virus, Amer Aldamouk, Bachr Masri, Ali Khan, Pulkita Uppal

Graduate Medical Education Research Journal

Immune thrombocytopenia (ITP), also referred to as idiopathic thrombocytopenic purpura, is an acquired form of thrombocytopenia caused by antibodies directed against platelet glycoproteins, particularly anti-GpIIb/IIIa antibodies. Epstein-Barr virus (EBV), a herpes virus infecting a large majority of the population before adulthood, has been implicated in various immune-mediated disorders, including ITP. In this report, we present a case of a young adult female with a history of thrombocytopenia who was found to have severe thrombocytopenia attributed to chronic EBV infection. Despite initial treatment with corticosteroids and intravenous immunoglobulin (IVIG), the patient's condition necessitated second-line therapies, including rituximab and thrombopoietin receptor agonists. …


Persistent Barriers To Implementation Of Long-Acting Injectable Antiretroviral Therapy, Jessica Hack, Adati Tarfa, Harlan Sayles, Nada Fadul Mar 2025

Persistent Barriers To Implementation Of Long-Acting Injectable Antiretroviral Therapy, Jessica Hack, Adati Tarfa, Harlan Sayles, Nada Fadul

EMET Projects

No abstract provided.


Preferences And Feasibility Of Long-Acting Technologies For The Treatment Of Hepatitis C Virus: A Survey Of Patients In Diverse Low- And Middle-Income Countries, Renae Furl, Kimberly Scarsi, Harlan Sayles, Matt Anderson, Joelle Dountio Ofimboudem, Ethel D. Weld, Imam Waked, Asmaa Gomaa, Alzhraa Al-Khatib, Fatma Mohammed Elshobary, Hailemichael Desalegn, Henok Fisseha, Sunil Solomon, Shruti Mehta, Andrew Owen, Steve Rannard, David L. Thomas, Susan Swindells Jan 2025

Preferences And Feasibility Of Long-Acting Technologies For The Treatment Of Hepatitis C Virus: A Survey Of Patients In Diverse Low- And Middle-Income Countries, Renae Furl, Kimberly Scarsi, Harlan Sayles, Matt Anderson, Joelle Dountio Ofimboudem, Ethel D. Weld, Imam Waked, Asmaa Gomaa, Alzhraa Al-Khatib, Fatma Mohammed Elshobary, Hailemichael Desalegn, Henok Fisseha, Sunil Solomon, Shruti Mehta, Andrew Owen, Steve Rannard, David L. Thomas, Susan Swindells

Journal Articles: Infectious Diseases

Despite available curative treatments, global rates of hepatitis C virus (HCV) infection persist with significant burden in low- and middle-income countries (LMICs). Long-acting (LA) antiviral products are in development. This study explored the challenges and opportunities in LA-HCV treatment across three LMICs: Egypt, Ethiopia and India. The survey focused on understanding barriers and facilitators to treatment, with emphasis on LA treatment preferences. Four-hundred respondents completed a survey including demographics, HCV treatment history and preferences for injections, implants and microarray patches (MAPs) compared to pills. Overall, 78% of respondents were willing to receive injections, 43% were willing to receive implants and …


Pregnancy Outcomes After Exposure To Tuberculosis Treatment In Phase 3 Clinical Trial, 2016-2020, Ekaterina V. Kurbatova, William C. Whitworth, Kia E. Bryant, Meredith G. Dixon, Kelly E. Dooley, Nigel A. Scott, Rosanna Boyd, Nicole E. Brown, Kimberley N. Chapman Hedges, Wendy Carr, Lakshmi P. Peddareddy, Grace Muzanyi, Rodney Dawson, Ziyad Waja, Neil Martinson, Jyoti S. V. Mathad, Payam Nahid, Susan Swindells, Richard E. Chaisson, Susan E. Dorman, Patrick P. J. Phillips, Aids Clinical Trials Group A5349, Tuberculosis Trials Consortium Study 31 Jan 2025

Pregnancy Outcomes After Exposure To Tuberculosis Treatment In Phase 3 Clinical Trial, 2016-2020, Ekaterina V. Kurbatova, William C. Whitworth, Kia E. Bryant, Meredith G. Dixon, Kelly E. Dooley, Nigel A. Scott, Rosanna Boyd, Nicole E. Brown, Kimberley N. Chapman Hedges, Wendy Carr, Lakshmi P. Peddareddy, Grace Muzanyi, Rodney Dawson, Ziyad Waja, Neil Martinson, Jyoti S. V. Mathad, Payam Nahid, Susan Swindells, Richard E. Chaisson, Susan E. Dorman, Patrick P. J. Phillips, Aids Clinical Trials Group A5349, Tuberculosis Trials Consortium Study 31

Journal Articles: Infectious Diseases

A previous study demonstrated noninferior efficacy of 4-month rifapentine/moxifloxacin regimen for tuberculosis (TB) treatment compared with the standard regimen. We analyzed pregnancy outcomes of women who became pregnant during the study. Among 740 women, 97 (13.1%) became pregnant. Of 102 pregnancies (in 97 participants), 30 (29.4%) participants were exposed to study drugs. Fetal loss was reported for 3/13 (23.1%) in the control regimen, 1/9 (11.1%) in the rifapentine/moxifloxacin regimen, and 1/8 (12.5%) in the rifapentine regimen. Among 21 live births in exposed pregnancies (7 in each arm), 1 infant with a congenital anomaly was reported in a participant on the …


Efficacy And Safety Of 4-Month Rifapentine-Based Tuberculosis Treatments In Persons With Diabetes., Ekaterina V. Kurbatova, William C. Whitworth, Lakshmi Praveena Peddareddy, Patrick P. J. Phillips, Nigel A. Scott, Kia E. Bryant, Rodney Dawson, Sandra Wagner Cardoso, Wadzanai Samaneka, Melissa Engle, Ziyaad Waja, Erin Sizemore, Wendy Carr, Kelly E. Dooley, Radojka Savic, Susan Swindells, Richard E. Chaisson, Susan E. Dorman, Payam Nahid, Nhung V. Nguyen, Aids Clinical Trials Group A5349, Tuberculosis Trials Consortium Study 31 Jan 2025

Efficacy And Safety Of 4-Month Rifapentine-Based Tuberculosis Treatments In Persons With Diabetes., Ekaterina V. Kurbatova, William C. Whitworth, Lakshmi Praveena Peddareddy, Patrick P. J. Phillips, Nigel A. Scott, Kia E. Bryant, Rodney Dawson, Sandra Wagner Cardoso, Wadzanai Samaneka, Melissa Engle, Ziyaad Waja, Erin Sizemore, Wendy Carr, Kelly E. Dooley, Radojka Savic, Susan Swindells, Richard E. Chaisson, Susan E. Dorman, Payam Nahid, Nhung V. Nguyen, Aids Clinical Trials Group A5349, Tuberculosis Trials Consortium Study 31

Journal Articles: Infectious Diseases

A previous study demonstrated noninferior efficacy of 4-month rifapentine/moxifloxacin regimen for tuberculosis (TB) treatment compared with the standard regimen. We explored results among study participants with diabetes. Among 2,516 randomized participants, 181 (7.2%) had diabetes. Of 166 participants with diabetes in the microbiologically eligible analysis group, 26.3% (15/57) had unfavorable outcomes in the control regimen, 13.8% (8/58) in the rifapentine/moxifloxacin regimen, and 29.4% (15/51) in the rifapentine regimen. The difference in proportion of unfavorable outcomes between the control and rifapentine/moxifloxacin arms in the microbiologically eligible analysis group was -12.5% (95% CI -27.0% to 1.9%); the difference between the control and …


Week 96 Results Of Bictegravir/Emtricitabine/Tenofovir Alafenamide For Hiv Treatment In People With Substance Use Disorders, Joshua P. Havens, Sara Bares, Elizabeth Lyden, Nada A. Fadul, Susan Swindells Jan 2025

Week 96 Results Of Bictegravir/Emtricitabine/Tenofovir Alafenamide For Hiv Treatment In People With Substance Use Disorders, Joshua P. Havens, Sara Bares, Elizabeth Lyden, Nada A. Fadul, Susan Swindells

Journal Articles: Infectious Diseases

BACKGROUND: The BASE study (NCT03998176), a phase 4, 48-week (W), single-arm, prospective trial, revealed that the use of bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) in people with HIV and substance use disorders (PWH/SUD) was safe and effective without emergent antiretroviral resistance despite incomplete adherence. Here, we present the W96 results.

METHODS: A retrospective analysis of all participants enrolled in the BASE study was completed from W48 to W96. End points of interest at W96 included the proportion of participants with viral suppression (VS; HIV RNA < 50 copies/mL [c/mL]), incidence of protocol-defined virologic failure (PDVF; 2 consecutive ≥400 c/mL), safety, adherence (percentage of days covered [PDC]), retention in care, and prevalence of ongoing substance use.

RESULTS: All enrolled BASE participants (n = 43) were included in the W96 analysis. At W48, 21 participants …


Prosthetic Valve Endocarditis With Cardiobacterium Hominis: A Case Report, Kaci Griffin, Timothy Jang, Rees Adomako, Jasmine R. Marcelin, Jonathan H. Ryder Dec 2024

Prosthetic Valve Endocarditis With Cardiobacterium Hominis: A Case Report, Kaci Griffin, Timothy Jang, Rees Adomako, Jasmine R. Marcelin, Jonathan H. Ryder

Graduate Medical Education Research Journal

Background: Cardiobacterium hominis (C. hominis) is an uncommon cause of infective endocarditis and often presents sub-acutely with fevers, cardiac murmurs, or embolic phenomena. We present a rare case of C. hominis infective prosthetic valve endocarditis that presented with new-onset atrial flutter and systemic emboli.

Case: A 38-year-old male presented to the emergency department with palpitations, shortness of breath, and chest tightness and was found to be in atrial flutter. He underwent a transesophageal echocardiogram-guided cardioversion and was incidentally found to have a one-centimeter echodensity on the ventricular side of his prosthetic aortic valve. (Figure 1.) He …


Prospective, Crossover, Comparative Study Of Two Methods Of Chlorhexidine Bathing, Richard J. Hankins Dec 2024

Prospective, Crossover, Comparative Study Of Two Methods Of Chlorhexidine Bathing, Richard J. Hankins

Theses & Dissertations

Bathing intensive care unit (ICU) patients with chlorhexidine gluconate (CHG) decreases hospital acquired infections (HAIs). The optimal method of CHG bathing remains undefined. Prospective cluster crossover study comparing CHG daily bathing with 2% CHG impregnated cloths versus 4% CHG solution. In phase 1, from January 2020 through March 2020, one ICU utilized 2% cloths, while the other ICU utilized 4% solution. After an interruption caused by the COVID-19 pandemic, in phase 2, from July 2020 through September 2020, the unit CHG bathing assignments were reversed. Swabs were performed three times per week from patients’ arms and legs to measure skin …


Impact Of Nutritional Status And Placental Malaria Infection On Pregnancy Outcome In A Population Of Nigerian Maternal-Infant Dyads, Shirley F. Delair May 2024

Impact Of Nutritional Status And Placental Malaria Infection On Pregnancy Outcome In A Population Of Nigerian Maternal-Infant Dyads, Shirley F. Delair

Theses & Dissertations

Nigeria is the most populous country in Africa and accounts for one-quarter of the newborn mortality on the continent. Most newborn deaths are from prematurity (33%), infections (33%), and intrapartum complications (31%). Using an adapted analytical framework for the study of child survival in developing countries, this dissertation aimed to look at the pregnancy outcome of a population of Nigerian women and their offspring by looking at proximate determinants of health from nutritional status and environmental conditions. In Chapter 1, we characterized the micronutrients of the mother-infant dyads, looking specifically at concentrations of vitamin D and its metabolites. In Chapter …


Evaluating The Association Of Influenza Vaccination On Long-Term Covid-19 Symptoms In U.S. Adults, Ratnakar Pingili May 2024

Evaluating The Association Of Influenza Vaccination On Long-Term Covid-19 Symptoms In U.S. Adults, Ratnakar Pingili

Capstone Experience: Master of Public Health

Objective. To evaluate the association of influenza vaccination in the past 12 months with Long COVID effects and clinical and sociodemographic factors.

Methods. Cross-sectional study with data from the 2022 Behavioral Risk Factor Surveillance System (BRFSS), covering 415,132 non-institutionalized U.S. adults with a confirmed COVID-19 diagnosis and influenza vaccination reported within the last 12 months. Logistic regression was conducted between influenza vaccination (exposure) and Long COVID (outcome), controlling for demographic variables, pre-existing health conditions, and socioeconomic status.

Results. Of 120,603 participants, 21.89% reported Long COVID symptoms and 42.04% had received an influenza vaccine. Findings indicate a statistically significant 13% reduction …


Pharmacokinetic-Pharmacodynamic Evidence From A Phase 3 Trial To Support Flat-Dosing Of Rifampicin For Tuberculosis, Huy X. Ngo, Ava Y. Xu, Gustavo E. Velásquez, Nan Zhang, Vincent K. Chang, Ekaterina V. Kurbatova, William C. Whitworth, Erin Sizemore, Kia Bryant, Wendy Carr, Marc Weiner, Kelly E. Dooley, Melissa Engle, Susan E. Dorman, Payam Nahid, Susan Swindells, Richard E. Chaisson, Pheona Nsubuga, Madeleine Lourens, Rodney Dawson, Radojka M. Savic Jan 2024

Pharmacokinetic-Pharmacodynamic Evidence From A Phase 3 Trial To Support Flat-Dosing Of Rifampicin For Tuberculosis, Huy X. Ngo, Ava Y. Xu, Gustavo E. Velásquez, Nan Zhang, Vincent K. Chang, Ekaterina V. Kurbatova, William C. Whitworth, Erin Sizemore, Kia Bryant, Wendy Carr, Marc Weiner, Kelly E. Dooley, Melissa Engle, Susan E. Dorman, Payam Nahid, Susan Swindells, Richard E. Chaisson, Pheona Nsubuga, Madeleine Lourens, Rodney Dawson, Radojka M. Savic

Journal Articles: Infectious Diseases

BACKGROUND: The optimal dosing strategy for rifampicin in treating drug-susceptible tuberculosis (TB) is still highly debated. In the phase 3 clinical trial Study 31/ACTG 5349 (NCT02410772), all participants in the control regimen arm received 600 mg rifampicin daily as a flat dose. Here, we evaluated relationships between rifampicin exposure and efficacy and safety outcomes.

METHODS: We analyzed rifampicin concentration time profiles using population nonlinear mixed-effects models. We compared simulated rifampicin exposure from flat- and weight-banded dosing. We evaluated the effect of rifampicin exposure on stable culture conversion at 6 months; TB-related unfavorable outcomes at 9, 12, and 18 months using …


Pyrazinamide Safety, Efficacy, And Dosing For Treating Drug-Susceptible Pulmonary Tuberculosis: A Phase 3, Randomized Controlled Clinical Trial, Ava Y. Xu, Gustavo E. Velásquez, Nan Zhang, Vincent K. Chang, Patrick P. J. Phillips, Payam Nahid, Susan E. Dorman, Ekaterina V. Kurbatova, William C. Whitworth, Erin Sizemore, Kia Bryant, Wendy Carr, Nicole E. Brown, Melissa L. Engle, Nguyen Viet Nhung, Pheona Nsubuga, Andreas Diacon, Kelly E. Dooley, Richard E. Chaisson, Susan Swindells, Radojka M. Savic Jan 2024

Pyrazinamide Safety, Efficacy, And Dosing For Treating Drug-Susceptible Pulmonary Tuberculosis: A Phase 3, Randomized Controlled Clinical Trial, Ava Y. Xu, Gustavo E. Velásquez, Nan Zhang, Vincent K. Chang, Patrick P. J. Phillips, Payam Nahid, Susan E. Dorman, Ekaterina V. Kurbatova, William C. Whitworth, Erin Sizemore, Kia Bryant, Wendy Carr, Nicole E. Brown, Melissa L. Engle, Nguyen Viet Nhung, Pheona Nsubuga, Andreas Diacon, Kelly E. Dooley, Richard E. Chaisson, Susan Swindells, Radojka M. Savic

Journal Articles: Infectious Diseases

Optimizing pyrazinamide dosing is critical to improve treatment efficacy while minimizing toxicity during tuberculosis treatment. Study 31/AIDS Clinical Trials Group A5349 represents the largest phase 3 randomized controlled therapeutic trial to date for such an investigation. Objectives: We sought to report pyrazinamide pharmacokinetic parameters, risk factors for lower pyrazinamide exposure, and relationships between pyrazinamide exposure and efficacy and safety outcomes. We aimed to determine pyrazinamide dosing strategies that optimize risks and benefits. Methods: We analyzed pyrazinamide steady-state pharmacokinetic data using population nonlinear mixed-effects models. We evaluated the contribution of pyrazinamide exposure to long-term efficacy using parametric time-to-event models and safety …


Preferences And Feasibility Of Long-Acting Technologies For Treatment Of Hepatitis C Virus In Low- And Middle-Income Countries: A Survey Of Providers And Policymakers, Neil Gupta, Susan Swindells, Kimberly Scarsi, Renae Furl, David L. Thomas, Ethel D. Weld, Joelle Dountio Ofimboudem, Hailemichael Desalegn, Saeed Hamid, Alethse De La Torre Rosas, Angelica E. Miranda, Andrew Owen, Steve Rannard, Lindsey Hiebert, Katherine Sun, John W. Ward Jan 2024

Preferences And Feasibility Of Long-Acting Technologies For Treatment Of Hepatitis C Virus In Low- And Middle-Income Countries: A Survey Of Providers And Policymakers, Neil Gupta, Susan Swindells, Kimberly Scarsi, Renae Furl, David L. Thomas, Ethel D. Weld, Joelle Dountio Ofimboudem, Hailemichael Desalegn, Saeed Hamid, Alethse De La Torre Rosas, Angelica E. Miranda, Andrew Owen, Steve Rannard, Lindsey Hiebert, Katherine Sun, John W. Ward

Journal Articles: Infectious Diseases

Long-acting technologies (LATs) for hepatitis C virus (HCV) are under development as a strategy to improve linkage to care, treatment adherence and outcomes. We conducted a survey of HCV treatment prescribers and HCV policymakers in low- and middle-income countries (LMICs) regarding acceptability and feasibility of HCV LATs. We included one-time intramuscular injection, subdermal implant and transdermal patch as potential LAT options. We surveyed participants regarding optimal health system and patient characteristics, concerns, potential barriers, overall feasibility and preferences for HCV LAT as compared to daily oral medication. Overall, 122 providers and 50 policymakers from 42 LMICs completed the survey. Among …


Risk-Stratified Treatment For Drug-Susceptible Pulmonary Tuberculosis., Vincent K. Chang, Marjorie Z. Imperial, Patrick P. J. Phillips, Gustavo E. Velásquez, Payam Nahid, Andrew Vernon, Ekaterina V. Kurbatova, Susan Swindells, Richard E. Chaisson, Susan E. Dorman, John L. Johnson, Marc Weiner, Amina Jindani, Thomas Harrison, Erin E. Sizemore, William Whitworth, Wendy Carr, Kia E. Bryant, Deron Burton, Kelly E. Dooley, Melissa Engle, Pheona Nsubuga, Andreas H. Diacon, Nguyen Viet Nhung, Rodney Dawson, Radojka M. Savic, Aids Clinical Trial Group, Tuberculosis Trials Consortium Jan 2024

Risk-Stratified Treatment For Drug-Susceptible Pulmonary Tuberculosis., Vincent K. Chang, Marjorie Z. Imperial, Patrick P. J. Phillips, Gustavo E. Velásquez, Payam Nahid, Andrew Vernon, Ekaterina V. Kurbatova, Susan Swindells, Richard E. Chaisson, Susan E. Dorman, John L. Johnson, Marc Weiner, Amina Jindani, Thomas Harrison, Erin E. Sizemore, William Whitworth, Wendy Carr, Kia E. Bryant, Deron Burton, Kelly E. Dooley, Melissa Engle, Pheona Nsubuga, Andreas H. Diacon, Nguyen Viet Nhung, Rodney Dawson, Radojka M. Savic, Aids Clinical Trial Group, Tuberculosis Trials Consortium

Journal Articles: Infectious Diseases

The Phase 3 randomized controlled trial, TBTC Study 31/ACTG A5349 (NCT02410772) demonstrated that a 4-month rifapentine-moxifloxacin regimen for drug-susceptible pulmonary tuberculosis was safe and effective. The primary efficacy outcome was 12-month tuberculosis disease free survival, while the primary safety outcome was the proportion of grade 3 or higher adverse events during the treatment period. We conducted an analysis of demographic, clinical, microbiologic, radiographic, and pharmacokinetic data and identified risk factors for unfavorable outcomes and adverse events. Among participants receiving the rifapentine-moxifloxacin regimen, low rifapentine exposure is the strongest driver of tuberculosis-related unfavorable outcomes (HR 0.65 for every 100 µg∙h/mL increase, …


Recurrent Polymicrobial Bloodstream Infections As Harbingers Of A Duodenal-Inferior Vena Cava Fistula, Gregory E. Koval, Richard J. Hankins, Jasmine R. Marcelin Dec 2023

Recurrent Polymicrobial Bloodstream Infections As Harbingers Of A Duodenal-Inferior Vena Cava Fistula, Gregory E. Koval, Richard J. Hankins, Jasmine R. Marcelin

Graduate Medical Education Research Journal

This is a case of an 82-year-old patient who presented with recurrent polymicrobial bloodstream infections and no obvious undrained source of infection. She had prior double barrel iliocaval stenting for post thrombotic syndrome. The patient underwent exploratory laparotomy and primary repair of a duodenal-caval fistula with a fascia lata patch and an omental pedicle flap. No further bloodstream infections were documented after the repair. This discussion highlights an uncommon complication of IVC stenting, its presentation as well as the operative approach used to repair the fistula.


Pelvic Actinomycosis: A Case Report, Jacklyn Locklear, Rachel Gilbert, Neelima Sukhavasi, Elizabeth Sutton Jun 2023

Pelvic Actinomycosis: A Case Report, Jacklyn Locklear, Rachel Gilbert, Neelima Sukhavasi, Elizabeth Sutton

Graduate Medical Education Research Journal

Introduction: Actinomycosis is a bacterial infection caused by the gram positive anaerobic bacteria that most commonly infects the cervicofacial region of the body. Rarely, it can infect the pelvis and typically presents in a nonspecific manner.

Case Report: We present a case of a 43 year old female G6P6006 with Paragard® intrauterine device (IUD) who presented with purulent umbilical discharge and pelvic pain. Initial imaging was concerned for gastrointestinal or ovarian malignancy. Patient underwent diagnostic laparoscopy with pelvic washings and hysteroscopy D&C. Operative pathology returned with results for actinomyces (IUD likely source).

Conclusion: While it is established IUDs can be …


Center Based Cardiac Rehabilitation Outcomes Associated With Covid-19 Pandemic: A Retrospective Comparative Cohort Study, Haley Williams, Kayla Woodworth May 2023

Center Based Cardiac Rehabilitation Outcomes Associated With Covid-19 Pandemic: A Retrospective Comparative Cohort Study, Haley Williams, Kayla Woodworth

Doctor of Nursing Practice Projects: College of Nursing

Background: Traditional cardiac rehabilitation (CR) is a multidisciplinary, multifaceted program for cardiac patients. Throughout the Covid-19 pandemic, health care, including center-based CR (CBCR) programs, were closed to in-person sessions. Even with the return to CBCR participation, patient outcomes may have been affected by this disruption in care. The goal of this study was to determine if CR participation outcomes differed before and after CBCR program closure due to Covid-19.

Methods: A retrospective comparative cohort design was used to examine CR participant outcome data before and after the Covid-19 pandemic. Convenience sampling of CR participants at a large, urban …


Assessing The Impact Of Ebola Virus Inoculum Size On Likelihood Of Infection, Joseph Lukowski May 2023

Assessing The Impact Of Ebola Virus Inoculum Size On Likelihood Of Infection, Joseph Lukowski

Capstone Experience: Master of Public Health

Background: Indirect transmission of Ebola virus disease (EVD) is not uncommon but is poorly understood. Improving the understanding of the potential risk of EVD transmission from fomites should result in new or updated prevention or control measures for suspected or confirmed EVD cases or outbreaks.

Objective: This study aims to compile and understand pertinent data from peer-reviewed literature, establish the dose-response relationship between inoculum doses introduced to mucous membranes, and finally estimate the risk of EVD transmission from fomites.

Methods: A literature search was conducted through PubMed to obtain relevant data. This study employed this data to perform Poisson regression …


Effectiveness And Safety Of Bictegravir/Emtricitabine/Tenofovir Alafenamide In Patients With Hiv-1 Infection And Ongoing Substance Use Disorder: The Base Study, Joshua P. Havens, Sara Bares, Elizabeth Lyden, Anthony T. Podany, Kimberly Scarsi, Nada A. Fadul, Susan Swindells Jan 2023

Effectiveness And Safety Of Bictegravir/Emtricitabine/Tenofovir Alafenamide In Patients With Hiv-1 Infection And Ongoing Substance Use Disorder: The Base Study, Joshua P. Havens, Sara Bares, Elizabeth Lyden, Anthony T. Podany, Kimberly Scarsi, Nada A. Fadul, Susan Swindells

Journal Articles: Infectious Diseases

BACKGROUND: People with human immunodeficiency virus (HIV) and substance use disorder (PWH/SUD) are at higher risk of nonadherence to antiretroviral therapy. Bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) exhibits high rates of efficacy with a favorable adverse event profile. The BASE study (NCT03998176) is a phase 4, single-arm study evaluating the effectiveness and safety of B/F/TAF among PWH/SUD.

METHODS: Viremic (HIV RNA >1000 copies/mL) PWH/SUD initiated B/F/TAF once daily for 48 weeks (W). The primary endpoint was proportion of participants with HIV RNA/mL at W24. Secondary endpoints were proportion of participants with HIV-1 RNA/mL at W48, safety, B/F/TAF adherence (dried blood spot [DBS] concentrations …


Factors Associated With Prevalent Mycobacterium Tuberculosis Infection And Disease Among Adolescents And Adults Exposed To Rifampin-Resistant Tuberculosis In The Household, Soyeon Kim, Anneke C. Hesseling, Xingye Wu, Michael D. Hughes, N. Sarita Shah, Sanjay Gaikwad, Nishi Kumarasamy, Erika Mitchell, Mey Leon, Pedro Gonzales, Sharlaa Badal-Faesen, Madeleine Lourens, Sandy Nerette, Justin Shenje, Petra De Koker, Supalert Nedsuwan, Lerato Mohapi, Unoda A. Chakalisa, Rosie Mngqbisa, Rodrigo Otávio Da Silva Escada, Samuel Ouma, Barbara Heckman, Linda Naini, Amita Gupta, Susan Swindells, Gavin Churchyard, Actg A5300/Impaact 2003 Phoenix Feasibility Study Team Jan 2023

Factors Associated With Prevalent Mycobacterium Tuberculosis Infection And Disease Among Adolescents And Adults Exposed To Rifampin-Resistant Tuberculosis In The Household, Soyeon Kim, Anneke C. Hesseling, Xingye Wu, Michael D. Hughes, N. Sarita Shah, Sanjay Gaikwad, Nishi Kumarasamy, Erika Mitchell, Mey Leon, Pedro Gonzales, Sharlaa Badal-Faesen, Madeleine Lourens, Sandy Nerette, Justin Shenje, Petra De Koker, Supalert Nedsuwan, Lerato Mohapi, Unoda A. Chakalisa, Rosie Mngqbisa, Rodrigo Otávio Da Silva Escada, Samuel Ouma, Barbara Heckman, Linda Naini, Amita Gupta, Susan Swindells, Gavin Churchyard, Actg A5300/Impaact 2003 Phoenix Feasibility Study Team

Journal Articles: Infectious Diseases

BACKGROUND: Understanding factors associated with prevalent Mycobacterium tuberculosis infection and prevalent TB disease in household contacts of patients with drug-resistant tuberculosis (TB) may be useful for TB program staff conducting contact investigations.

METHODS: Using data from a cross-sectional study that enrolled index participants with rifampin-resistant pulmonary TB and their household contacts (HHCs), we evaluated HHCs age ≥15 years for factors associated with two outcomes: Mycobacterium tuberculosis infection and TB disease. Among HHCs who were not already diagnosed with current active TB disease by the TB program, Mycobacterium tuberculosis infection was determined by interferon-gamma release assay (IGRA). TB disease was adjudicated …


The Epidemiology Of Extended Spectrum Beta-Lactamase-Producing Enterobacterales In Nebraska, 2018 – 2021, Axel A. Vazquez Deida May 2022

The Epidemiology Of Extended Spectrum Beta-Lactamase-Producing Enterobacterales In Nebraska, 2018 – 2021, Axel A. Vazquez Deida

Capstone Experience: Master of Public Health

Background: Extended spectrum beta-lactamase (ESBL)-producing Enterobacterales are considered a serious public health threat by the United States Centers for Disease Control and Prevention. However, surveillance of ESBL-producing Enterobacterales is currently limited to select states and the epidemiology of these antibiotic-resistant bacteria in Nebraska is still not well understood.

Objective: To describe the incidence of ESBL-producing Enterobacterales across local health department (LHD)-jurisdictions as well as at the state-level over time and assess population-specific factors associated with infection or colonization with these pathogens in Nebraska.

Methods: A retrospective, cross-sectional analysis of public health surveillance data reported to the Nebraska Department of …


Mitochondrial Redox Environments Predict Sensorimotor Brain-Behavior Dynamics In Adults With Hiv., Rachel K. Spooner, Brittany K. Taylor, Iman M. Ahmad, Kelsey Dyball, Katy Emanuel, Jennifer O'Neill, Maureen Kubat, Susan Swindells, Howard S. Fox, Sara Bares, Kelly L. Stauch, Matthew C. Zimmerman, Tony W. Wilson Jan 2022

Mitochondrial Redox Environments Predict Sensorimotor Brain-Behavior Dynamics In Adults With Hiv., Rachel K. Spooner, Brittany K. Taylor, Iman M. Ahmad, Kelsey Dyball, Katy Emanuel, Jennifer O'Neill, Maureen Kubat, Susan Swindells, Howard S. Fox, Sara Bares, Kelly L. Stauch, Matthew C. Zimmerman, Tony W. Wilson

Journal Articles: Infectious Diseases

Despite virologic suppression, people living with HIV (PLWH) remain at risk for developing cognitive impairment, with aberrations in motor control being a predominant symptom leading to functional dependencies in later life. While the neuroanatomical bases of motor dysfunction have recently been illuminated, the underlying molecular processes remain poorly understood. Herein, we evaluate the predictive capacity of the mitochondrial redox environment on sensorimotor brain-behavior dynamics in 40 virally-suppressed PLWH and 40 demographically-matched controls using structural equation modeling. We used state-of-the-art approaches, including Seahorse Analyzer of mitochondrial function, electron paramagnetic resonance spectroscopy to measure superoxide levels, antioxidant activity assays and dynamic magnetoencephalographic …


Caregiver Willingness To Give Tpt To Children Living With Drug-Resistant Tb Patients, V. Rouzier, M. Murrill, S. Kim, L. Naini, J. Shenje, E. Mitchell, M. Raesi, M. Lourens, A. Mendoza, F. Conradie, N. Suryavanshi, M. Hughes, S. Shah, G. Churchyard, Susan Swindells, A. Hesseling, A. Gupta Jan 2022

Caregiver Willingness To Give Tpt To Children Living With Drug-Resistant Tb Patients, V. Rouzier, M. Murrill, S. Kim, L. Naini, J. Shenje, E. Mitchell, M. Raesi, M. Lourens, A. Mendoza, F. Conradie, N. Suryavanshi, M. Hughes, S. Shah, G. Churchyard, Susan Swindells, A. Hesseling, A. Gupta

Journal Articles: Infectious Diseases

Pediatric household contacts (HHCs) of patients with multidrug-resistant TB (MDR-TB) are at high risk of infection and active disease. Evidence of caregiver willingness to give MDR-TB preventive therapy (TPT) to children is limited.METHODS This was a cross-sectional study of HHCs of patients with MDR-TB to assess caregiver willingness to give TPT to children aged <13 years.RESULTS Of 743 adult and adolescent HHCs, 299 reported caring for children aged <13 years of age. The median caregiver age was 35 years (IQR 27-48); 75% were women. Among caregivers, 89% were willing to give children MDR TPT. In unadjusted analyses, increased willingness was associated with TB-related knowledge (OR 5.1, 95% CI 2.3-11.3), belief that one can die of MDR-TB (OR 5.2, 95% CI 1.2-23.4), concern for MDR-TB transmission to child (OR 4.5, 95% CI 1.6-12.4), confidence in properly taking TPT (OR 4.5, 95% CI 1.6-12.6), comfort telling family about TPT (OR 5.5, 95% CI 2.1-14.3), and willingness to take TPT oneself (OR 35.1, 95% CI 11.0-112.8).CONCLUSIONS A high percentage of caregivers living with MDR- or rifampicin-resistant TB patients were willing to give children a hypothetical MDR TPT. These results provide important evidence for the potential uptake of …


The Value Of A Longitudinal Human Immunodeficiency Virus Track For Medical Students: 10-Year Program Evaluation, Jasmine R. Marcelin, Paul Brosnihan, Susan Swindells, Nada A. Fadul, Sara Bares Jan 2022

The Value Of A Longitudinal Human Immunodeficiency Virus Track For Medical Students: 10-Year Program Evaluation, Jasmine R. Marcelin, Paul Brosnihan, Susan Swindells, Nada A. Fadul, Sara Bares

Journal Articles: Infectious Diseases

We surveyed graduates of a longitudinal medical school human immunodeficiency virus curriculum to evaluate its impact. Respondents felt comfortable caring for people with human immunodeficiency virus (PWH) and found value from the curriculum regardless of ultimate career path. Programs like this contribute to the development of culturally sensitive clinicians comfortable caring for PWH.


Week 96 Extension Results Of A Phase 3 Study Evaluating Long-Acting Cabotegravir With Rilpivirine For Hiv-1 Treatment, Susan Swindells, Thomas Lutz, Lelanie Van Zyl, Norma Porteiro, Matthias Stoll, Essack Mitha, Alyssa Shon, Paul Benn, Jenny O. Huang, Conn M. Harrington, Kai Hove, Susan L. Ford, Christine L. Talarico, Vasiliki Chounta, Herta Crauwels, Rodica Van Solingen-Ristea, Simon Vanveggel, David A. Margolis, Kimberly Y. Smith, Kati Vandermeulen, William R. Spreen Jan 2022

Week 96 Extension Results Of A Phase 3 Study Evaluating Long-Acting Cabotegravir With Rilpivirine For Hiv-1 Treatment, Susan Swindells, Thomas Lutz, Lelanie Van Zyl, Norma Porteiro, Matthias Stoll, Essack Mitha, Alyssa Shon, Paul Benn, Jenny O. Huang, Conn M. Harrington, Kai Hove, Susan L. Ford, Christine L. Talarico, Vasiliki Chounta, Herta Crauwels, Rodica Van Solingen-Ristea, Simon Vanveggel, David A. Margolis, Kimberly Y. Smith, Kati Vandermeulen, William R. Spreen

Journal Articles: Infectious Diseases

BACKGROUND: ATLAS (NCT02951052), a phase 3, multicenter, open-label study, demonstrated that switching to injectable cabotegravir (CAB) with rilpivirine (RPV) long-acting dosed every 4 weeks was noninferior at week (W) 48 to continuing three-drug daily oral current antiretroviral therapy (CAR). Results from the W 96 analysis are presented.

METHODS AND DESIGN: Participants completing W 52 of ATLAS were given the option to withdraw, transition to ATLAS-2M (NCT03299049), or enter an Extension Phase to continue long-acting therapy (Long-acting arm) or switch from CAR to long-acting therapy (Switch arm). Endpoints assessed at W 96 included proportion of participants with plasma HIV-1 RNA less …


Symmetrical Drug-Related Intertriginous And Flexural Exanthema Induced By Cellulitis Prophylaxis, Tiffany Truong, Jonathan H. Ryder, Erica Lee, Clayton Mowrer, Ashley Wysong, Jasmine R. Marcelin Dec 2021

Symmetrical Drug-Related Intertriginous And Flexural Exanthema Induced By Cellulitis Prophylaxis, Tiffany Truong, Jonathan H. Ryder, Erica Lee, Clayton Mowrer, Ashley Wysong, Jasmine R. Marcelin

Graduate Medical Education Research Journal

Penicillin VK and hydroxyzine are typically well-tolerated antipruritic agents that are indicated in the prophylaxis of cellulitis. We herein report a case of a unique rash occurring during penicillin VK and hydroxyzine treatment in combination with the ingestion of cashews.

A 77-year-old male presented with new onset rash. Eleven days after the administration of penicillin VK and hydroxyzine for cellulitis prophylaxis, he developed a symmetric, erythematous, scaling rash on his buttocks and perineal region with associated pruritus and bleeding without fevers, chills, adenopathy, night sweats, or any other symptoms. He was diagnosed with symmetrical drug-related intertriginous and flexural exanthema (SDRIFE) …


Evaluation Of Stratified Antibiograms For Use In Laboratory And Antimicrobial Stewardship, Linsey Donner Dec 2021

Evaluation Of Stratified Antibiograms For Use In Laboratory And Antimicrobial Stewardship, Linsey Donner

Theses & Dissertations

Antibiograms are critical for choosing empiric antimicrobial therapy. Cumulative antibiograms, which aggregate susceptibility data, can mask differences within specific patient subsets or clinical syndromes. This dissertation was done to determine if antibiotic susceptibilities showed substantial differences when comparing stratified antibiograms to cumulative antibiograms.

Antibiotic susceptibility data was retrospectively obtained from Nebraska Medicine January 1, 2017 – December 31, 2019 for Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Staphylococcus aureus, and Enterococcus faecalis. The University of Nebraska Medical Center’s web antibiogram clinical decision support tool was used to export the data. Bacteria-antibiotic susceptibility rates of stratified antibiograms …


Gray Matter Volumes Discriminate Cognitively Impaired And Unimpaired People With Hiv, Mikki Schantell, Brittany K. Taylor, Brandon Lew, Jennifer O'Neill, Pamela E. May, Susan Swindells, Tony W. Wilson Jul 2021

Gray Matter Volumes Discriminate Cognitively Impaired And Unimpaired People With Hiv, Mikki Schantell, Brittany K. Taylor, Brandon Lew, Jennifer O'Neill, Pamela E. May, Susan Swindells, Tony W. Wilson

Journal Articles: Infectious Diseases

BACKGROUND: Current diagnostic criteria of HIV-associated neurocognitive disorders (HAND) rely on neuropsychological assessments. The aim of this study was to evaluate if gray matter volumes (GMV) can distinguish people with HAND, neurocognitively unimpaired people with HIV (unimpaired PWH), and uninfected controls using linear discriminant analyses.

METHODS: A total of 231 participants, including 110 PWH and 121 uninfected controls, completed a neuropsychological assessment and an MRI protocol. Among PWH, HAND (n = 48) and unimpaired PWH (n = 62) designations were determined using the widely accepted Frascati criteria. We then assessed the extent to which GMV, corrected for intracranial volume, could …