Publications by authors named "Ana D Vega"

harboring Verona Integron-encoded metallo-β-lactamase enzymes (VIM-CRPA) have been associated with infection outbreaks in several parts of the world. In the US, however, VIM-CRPA remain rare. Starting in December 2018, we identified a cluster of cases in our institution.

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Article Synopsis
  • Multidrug-resistant (MDR) Gram-negative bacteria pose serious health risks, and timely treatment directly influences patient survival, which led to this study on enhancing therapy response times using new antibiotic combinations.* -
  • Researchers conducted a study on adult patients with severe infections from carbapenem-resistant Enterobacterales and MDR Pseudomonas, evaluating the effects of a new diagnostic and antimicrobial stewardship workflow implemented in 2019.* -
  • Results showed significant reduction in time to appropriate therapy (TAP), dropping from 103 hours to 75 hours, alongside a quicker turnaround in susceptibility testing, indicating the effectiveness of the improved workflow on patient outcomes.*
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Article Synopsis
  • Several rapid diagnostic tests (RDTs) are being explored for early detection of infections in solid organ transplant (SOT) patients, showing potential to improve clinical outcomes.
  • A review of 11 studies indicated that integrating RDTs with antimicrobial stewardship programs leads to quicker identification of pathogens, reduced hospital stays, and lower costs, but there are concerns like overdiagnosis and test limitations.
  • The authors advocate for more targeted research on RDT efficacy among SOT patients and how to best utilize these tests alongside traditional microbiology methods for improved outcomes.
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Background: We aimed to describe the clinical characteristics and outcomes of patients treated with meropenem-vaborbactam (MEV) for a variety of gram-negative infections (GNIs), primarily including carbapenem-resistant Enterobacterales (CRE).

Methods: This is a real-world, multicenter, retrospective cohort within the United States between 2017 and 2020. Adult patients who received MEV for ≥72 hours were eligible for inclusion.

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Background: Due to the lack of proven therapies, we evaluated the effects of early administration of tocilizumab for COVID-19. By inhibition of the IL-6 receptor, tocilizumab may help to mitigate the hyperinflammatory response associated with progressive respiratory failure from SARS-CoV-2.

Methods: A retrospective, observational study was conducted on hospitalized adults who received intravenous tocilizumab for COVID-19 between March 23, 2020 and April 10, 2020.

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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has rapidly spread throughout the world causing significant mortality in high risk patients with severe manifestations. To date, Remdesivir has been the only antiviral authorized by FDA as therapy for emergency use. One of the potential complications of this infection is cytokine storm, which optimal treatment remains unknown.

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Early detection of carbapenem resistance in Gram-negative (CRGN) infections can help tailor therapy sooner and prevent horizontal transmission more efficiently. This involves timely, multidisciplinary communication. To this aim, we describe our experience with implementing reflex testing algorithms for expanded antibiotic susceptibilities and molecular mechanisms of resistance in a large academic hospital.

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In response to the rapid spread of novel coronavirus disease 2019 (COVID-19), health-care systems should establish procedures for early recognition and management of suspected or confirmed cases. We describe the various steps taken for the development, implementation, and dissemination of the interdisciplinary COVID-19 protocol at Jackson Health System (JHS), a complex tertiary academic health system in Miami, Florida. Recognizing the dynamic nature of COVID-19, the protocol addresses the potential investigational treatment options and considerations for special populations.

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Background: Data on the impact of combination therapy (intravenous metronidazole [IV MTZ] plus oral vancomycin [PO VAN]) on clinical outcomes in intensive care unit (ICU) patients with severe non-fulminant Clostridioides difficile infection (CDI), including NAP1-positive samples, are lacking.

Methods: Retrospective observational cohort of adult patients who developed CDI in the ICU diagnosed with severe non-fulminant CDI who received PO VAN. Patients with an order for IV MTZ started within 72 hours of PO VAN and who received at least 72 hours of combined therapy composed the combination therapy group.

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Antimicrobial resistance is a growing global health concern. Antimicrobial stewardship (AMS) curbs resistance rates by encouraging rational antimicrobial use. However, data on antimicrobial stewardship in developing countries is scarce.

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Background: Data is limited on the use of 8 weeks of therapy with ledipasvir/sofosbuvir (LDV/SOF) for special populations such as HCV-HIV-coinfected patients. The primary objective of this analysis was to compare sustained virological response at 12 weeks after end of therapy (SVR12) rates among HCV-monoinfected and HCV-HIV-coinfected patients in a real-world clinical setting. Additionally, we compared SVR12 rates among patients receiving 8 versus 12 weeks of therapy.

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Purpose Of Review: Fluoroquinolones are a commonly prescribed antibiotic class that has come under scrutiny in recent years due to mounting evidence of association between adverse drug events, C. difficile infection and isolation of antibiotic-resistant bacteria.

Recent Findings: Inpatient antimicrobial stewardship (AMS) programs have a toolbox of potential interventions to curb inappropriate antibiotic use, prevent antibiotic-associated adverse drug events, and avoid unnecessary costs of care.

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When taken consistently, pre-exposure prophylaxis (PrEP) against human immunodeficiency virus (HIV) with once daily tenofovir disoproxil fumarate-emtricitabine (TDF-FTC) has been shown to safely reduce the incidence of HIV infection in high-risk individuals by more than 90%. Yet, according to the Centers for Disease Control and Prevention, there were about 2.1 million new cases of HIV reported worldwide in 2015.

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Purpose: To quantify prescription drug price increases over a span of 3 years (2012-2015), as well as extrapolate current reimbursement rates expected by independent retail pharmacies. In addition, we investigate potential reasons for these increasing drug costs.

Design: Descriptive analysis.

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