Publications by authors named "Cheston B Cunha"

Background: Traditional blood cultures for gram-negative bacteremia can take up to 72 hours or more to return results, prolonging the duration of empiric broad-spectrum intravenous antibiotics. The Accelerate Pheno system provides rapid identification and susceptibilities for blood cultures in gram-negative bacteremia. Current data on its clinical utility are mixed overall, so the system requires further research.

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Article Synopsis
  • Altered mental status (AMS) is a common and serious issue in ICU patients, often diagnosed too broadly with labels like toxic-metabolic encephalopathy (TME) and delirium.
  • It's crucial to thoroughly evaluate AMS patients for specific, treatable diseases affecting the brain instead of relying on these nonspecific labels.
  • The review provides strategies for assessing AMS in the ICU, discusses common neurodiagnostic procedures, and highlights specific causes of AMS that may be overlooked in standard screenings.
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Biologic (bDMARD) and targeted synthetic (tsDMARD) disease-modifying anti-rheumatic drugs have broadened the treatment options and are increasingly used for patients with psoriatic arthritis (PsA). These agents block different pro-inflammatory cytokines or specific intracellular signaling pathways that promote inflammation and can place patients at risk of serious infections. We aimed to review the incidence of opportunistic infections (OIs) in patients with PsA who were treated with these agents.

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Background: We sought to examine the effectiveness of the Enhancing the Quality of Prescribing Practices for Older Adults Discharged from the Emergency Department (EQUiPPED) medication safety program in three emergency departments (EDs) within the largest health system in Rhode Island (RI) with funding through a quality incentive payment by a private insurance partner.

Methods: This study utilized a quasi-experimental interrupted time series design to implement EQUiPPED, a three-prong intervention aimed at reducing potentially inappropriate medication (PIM) prescriptions to 5% or less per month. We included clinicians who prescribed medications to older ED patients during the pre-and post-intervention periods from July 2018 to January 2021.

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Aim: To assess the efficacy and safety of hydroxychloroquine with or without azithromycin) in hospitalized adult patients with COVID-19.

Methods: We utilized a hospital based prospective data registry. The primary end point was to assess the impact of hydroxychloroquine with or without azithromycin, on outcome, length of hospitalization, and time to clinical improvement.

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Few studies assess the utility of rapid multiplex molecular respiratory panels in adult patients. Previous multiplex PCR assays took hours to days from order time to result. We analyze the clinical impact of switching to a molecular assay with a 3-h test-turnaround-time (TAT).

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Traditionally, there have been uniform antibiotic dosing guidelines for prophylaxis for clean-clean-contaminated surgery in both non-obese and obese adults. All other factors predisposing to surgical site infections (SSIs) being equal, over time, the preferred drug is cefazolin. The usual dose, given immediately pre-procedure, has been 1 g intravenously (IV) in non-penicillin-allergic patients, which has been highly effective, Recently, it has become common practice to use high-dose cefazolin; i.

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Effective antimicrobial therapy depends on several factors including degree of activity against the pathogen, antibiotic resistance, and when relevant, optimal tissue penetration factors. Central nervous system (CNS) infections illustrate these points well. The pharmacokinetic (PK) parameters important in antibiotic blood cerebrospinal fluid barrier (BCB) penetration that is important in meningitis are different and do not predict blood brain barrier (BBB) penetration.

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Traditionally, initial antibiotic therapy was administered intravenously (IV). Over the past 3 decades, there has been increased understanding, appreciation, and application of pharmacokinetic (PK) and pharmacodynamic (PD) principles in antibiotic therapy. The utilization of PK/PD parameters as applied to antimicrobial therapy has led to optimizing dosage regimens as well as increased awareness and experience with oral versus antibiotic therapy.

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Optimal antimicrobial therapy must take into account the key factors in antibiotic selection, that is, spectrum, tissue penetration, resistance potential, safety profile, and relative cost-effectiveness. The least expensive drug is usually accompanied by other concerns, such as high resistance potential, poor side effect profile, pharmacokinetic properties that limit penetration into target tissue (site of infection), and/or suboptimal activity against the presumed/known pathogen. It is false economy to preferentially select the least expensive antibiotics solely because of its acquisition cost.

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Empiric therapy of the septic patient in the hospital is challenging. Antibiotic stewardship is concerned with optimizing antibiotic use and minimizing resistance. Clinicians should avoid overcovering and overtreating colonizing organisms in respiratory secretions and urinary catheters.

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Antimicrobial stewardship involves optimizing antibiotic use while using cost-effective interventions to minimize antibiotic resistance and control Clostridium difficile. An effective hospital-wide antimicrobial stewardship program (ASP) should be led by an infectious disease (ID) physician. The ASP team needs full and ongoing financial support for the ASP from the hospital administration.

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Article Synopsis
  • - A patient experienced two severe illnesses over 19 years, with the first resembling lymphogranuloma venereum (LGV) and the second mimicking scrofula, both marked by significant inflammation and tissue damage.
  • - The second illness revealed the patient had a rare immunodeficiency caused by auto-antibodies to Interleukin (IL)-12 and an infection by a typically benign plant pathogen.
  • - Biopsies from the first illness indicated the presence of the pathogen even then, leading to a prolonged misdiagnosis and offering insights into the interplay between the immune system and microbial infections in disease presentation.
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Background: Recent literature has highlighted methicillin-resistant Staphylococcus aureus (MRSA) nasal screening as a possible antimicrobial stewardship program tool for avoiding unnecessary empiric MRSA therapy for pneumonia, yet current guidelines recommend MRSA therapy based on risk factors. The objective of this meta-analysis was to evaluate the diagnostic value of MRSA nasal screening in MRSA pneumonia.

Methods: PubMed and EMBASE were searched from inception to November 2016 for English studies evaluating MRSA nasal screening and development of MRSA pneumonia.

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Whenever the cardinal manifestations of a disorder occur in similar disorders, there is potential for a disease mimic. Legionnaire's disease has protean manifestations and has the potential to mimic or be mimicked by other community acquired pneumonias (CAPs). In CAPs caused by other than Legionella species, the more characteristic features in common with legionnaire's disease the more difficult the diagnostic conundrum.

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Legionnaire's disease is a nonzoonotic atypical pneumonia caused by Legionella sp that occurs sporadically or in outbreaks. Legionnaire's disease pneumonia is accompanied by several extrapulmonary clinical and laboratory findings. Rather than testing all pneumonias for Legionnaire's disease, the clinical challenge is to recognize the diagnostic significance of Legionnaire's disease's.

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