Publications by authors named "Amy W Williams"

Importance: Continuous assessment of the effectiveness and safety of the US Food and Drug Administration-authorized SARS-CoV-2 vaccines is critical to amplify transparency, build public trust, and ultimately improve overall health outcomes.

Objective: To evaluate the effectiveness of the Johnson & Johnson Ad26.COV2.

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Objective: To assess the association of COVID-19 vaccines and non-COVID-19 vaccines with cerebral venous sinus thrombosis (CVST).

Materials And Method: We retrospectively analyzed a cohort of 771,805 vaccination events across 266,094 patients in the Mayo Clinic Health System between 01/01/2017 and 03/15/2021. The primary outcome was a positive diagnosis of CVST, identified either by the presence of a corresponding ICD code or by an NLP algorithm which detected positive diagnosis of CVST within free-text clinical notes.

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Background: As the coronavirus disease 2019 (COVID-19) vaccination campaign unfolds, it is important to continuously assess the real-world safety of Food and Drug Administration (FDA)-authorized vaccines. Curation of large-scale electronic health records (EHRs) enables near-real-time safety evaluations that were not previously possible.

Methods: In this retrospective study, we deployed deep neural networks over a large EHR system to automatically curate the adverse effects mentioned by physicians in over 1.

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Objective: To assess demographic characteristics and perceptions of female physicians in attendance at a medical conference for women with content focused on growth, resilience, inspiration, and tenacity to better understand major barriers women in medicine face and to find solutions to these barriers.

Patients And Methods: A Likert survey was administered to female physicians attending the conference (September 20 to 22, 2018). The survey consisted of demographic data and 4 dimensions that are conducive to women's success in academic medicine: equal access, work-life balance, freedom from gender biases, and supportive leadership.

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Article Synopsis
  • - The study aimed to estimate the prevalence of SARS-CoV-2 antibodies among health care workers using a voluntary two-stage testing program initiated by the Mayo Clinic on June 15, 2020.
  • - Out of 81,113 eligible health care workers, 29,606 participated, with 14.5% showing reactive results to initial tests; confirmatory testing indicated an overall seroprevalence rate of 0.60%.
  • - The findings revealed that the seroprevalence was lower than in other hospitals, with variations linked to geographical regions and the age of participants, and suggested possible connections to community disease levels.
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Intensive care unit (ICU) admissions and mortality in severe COVID-19 patients are driven by "cytokine storms" and acute respiratory distress syndrome (ARDS). Interim clinical trial results suggest that the corticosteroid dexamethasone displays better 28-day survival in severe COVID-19 patients requiring ventilation or oxygen. In this study, 10 out of 16 patients (62.

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Objective: To report the Mayo Clinic experience with coronavirus disease 2019 (COVID-19) related to patient outcomes.

Methods: We conducted a retrospective chart review of patients with COVID-19 diagnosed between March 1, 2020, and July 31, 2020, at any of the Mayo Clinic sites. We abstracted pertinent comorbid conditions such as age, sex, body mass index, Charlson Comorbidity Index variables, and treatments received.

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Clinical studies are ongoing to assess whether existing vaccines may afford protection against SARS-CoV-2 infection through trained immunity. In this exploratory study, we analyze immunization records from 137,037 individuals who received SARS-CoV-2 PCR tests. We find that polio, Haemophilus influenzae type-B (HIB), measles-mumps-rubella (MMR), Varicella, pneumococcal conjugate (PCV13), Geriatric Flu, and hepatitis A/hepatitis B (HepA-HepB) vaccines administered in the past 1, 2, and 5 years are associated with decreased SARS-CoV-2 infection rates, even after adjusting for geographic SARS-CoV-2 incidence and testing rates, demographics, comorbidities, and number of other vaccinations.

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Longitudinal characterization of SARS-CoV-2 PCR testing from COVID-19 patient's nasopharynx and its juxtaposition with blood-based IgG-seroconversion diagnostic assays is critical to understanding SARS-CoV-2 infection durations. Here, we retrospectively analyze 851 SARS-CoV-2-positive patients with at least two positive PCR tests and find that 99 of these patients remain SARS-CoV-2-positive after 4 weeks from their initial diagnosis date. For the 851-patient cohort, the mean lower bound of viral RNA shedding was 17.

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Temporal inference from laboratory testing results and triangulation with clinical outcomes extracted from unstructured electronic health record (EHR) provider notes is integral to advancing precision medicine. Here, we studied 246 SARS-CoV-2 PCR-positive (COVID) patients and propensity-matched 2460 SARS-CoV-2 PCR-negative (COVID) patients subjected to around 700,000 lab tests cumulatively across 194 assays. Compared to COVID patients at the time of diagnostic testing, COVID patients tended to have higher plasma fibrinogen levels and lower platelet counts.

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Importance: Women in academic medicine continue to face systemic obstacles on their paths to leadership. In addition to improving recruitment and advancement opportunities, academic medical centers must facilitate a cultural shift that ensures sustained leadership pathways for women.

Objective: To better understand, from the perspective of women leaders, the workplace and cultural changes that need to take place in academic medicine to increase inclusivity and gender equity.

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Understanding temporal dynamics of COVID-19 symptoms could provide fine-grained resolution to guide clinical decision-making. Here, we use deep neural networks over an institution-wide platform for the augmented curation of clinical notes from 77,167 patients subjected to COVID-19 PCR testing. By contrasting Electronic Health Record (EHR)-derived symptoms of COVID-19-positive (COVID; n = 2,317) versus COVID-19-negative (COVID; n = 74,850) patients for the week preceding the PCR testing date, we identify anosmia/dysgeusia (27.

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Analysis of 851 COVID-19 patients with a SARS-CoV-2-positive PCR at follow-up shows 99 patients remained SARS-CoV-2-positive after four weeks from initial diagnosis. Surprisingly, a majority of these long-term viral RNA shedders were not hospitalized (61 of 99), with variable PCR Crossing point values over the month post diagnosis. For the 851-patient cohort, the mean lower bound of viral RNA shedding was 17.

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Purpose: To investigate early hemodynamic instability and its implications on adverse outcomes in patients who require continuous renal replacement therapy (CRRT).

Materials And Methods: A retrospective study of patients admitted to the intensive care unit (ICU) and underwent CRRT at Mayo Clinic, Rochester, Minnesota between December 2006 through November 2015.

Results: Multivariate logistic regression was performed to identify predictors of in-hospital mortality and major adverse kidney events (MAKE) at 90 days.

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Objective: Patients receiving dialysis are at increased risk for lower extremity amputations (LEAs) and postoperative morbidity. Limited studies have examined differences in 30-day outcomes of mortality and health care use after amputation or the preoperative factors that relate to worsened outcomes in dialysis patients. Our objective was to examine dialysis dependency and other preoperative factors associated with readmission or death after LEA.

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Background And Objectives: Withdrawal from maintenance hemodialysis before death has become more common because of high disease and treatment burden. The study objective was to identify patient factors and examine the terminal course associated with hemodialysis withdrawal, and assess patterns of palliative care involvement before death among patients on maintenance hemodialysis.

Design, Setting, Participants, & Measurements: We designed an observational cohort study of adult patients on incident hemodialysis in a midwestern United States tertiary center, from January 2001 to November 2013, with death events through to November 2015.

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Routine preventive cancer screening is not recommended for patients with end-stage renal disease (ESRD) due to their limited life expectancy. The current extent of cancer screening in this population is unknown. Primary care (PC) reminder systems or performance incentives may encourage indiscriminate cancer screening.

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Background/aims: Over one-third of hospital discharges among dialysis patients are followed by 30-day readmission. The first year after dialysis start is a high-risk time frame. We examined the rate, causes, timing, and predictors of 30-day readmissions among adult, incident dialysis patients.

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Article Synopsis
  • This paper examines effective proactive nurse rounding interventions at high-performing hospitals to enhance patient-centered care through three detailed case studies.
  • *Proactive nurse rounding is shown to positively impact patient outcomes, yet there is a scarcity of evidence on its successful implementation.
  • *The findings suggest that such rounding interventions are practical and can help promptly address patients' needs, offering valuable insights for nurse leaders aiming to improve care quality.*
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Introduction: Extracorporeal circuit (EC) anticoagulation with heparin is a key advance in hemodialysis (HD), but anticoagulation is problematic in inpatients at risk of bleeding. We prospectively evaluated a heparin-avoidance HD protocol, clotting of the EC circuit (CEC), impact on dialysis efficiency, and associated risk factors in our acute care inpatients who required HD (January 17, 2014 to May 31, 2015).

Methods: HD sessions without routine EC heparin were performed using airless dialysis tubing.

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Background: Efficient and safe delivery of care to dialysis patients is essential. Concerns have been raised regarding the ability of accountable care organizations to adequately serve this high-risk population. Little is known about primary care involvement in the care of dialysis patients.

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