Mari M Nakamura

Dr. Mari M Nakamura

orcid

Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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22 April 2020 in Journal of the Pediatric Infectious Diseases Society
Verified
Journal Article
Open access
PDF file
KCKathleen Chiotos
Kathleen Chiotos
MHMolly Hayes
Molly Hayes
DKDavid W Kimberlin
David W Kimberlin
SJSarah B Jones
Sarah B Jones
SJScott H James
Scott H James
MNMari M Nakamura
Mari M Nakamura
Background: Although coronavirus disease 2019 (COVID-19) is mild in nearly all children, a small proportion of pediatric patients develop severe or critical illness. Guidance is therefore needed regarding use of agents with potential activity against severe acute respiratory syndrome coronavirus 2 in pediatrics.Methods: A panel of pediatric infectious diseases physicians and pharmacists from 18 geographically diverse North American institutions was convened. Through a series of teleconferences and web-based surveys, a set of guidance statements was developed and refined based on review of best available evidence and expert opinion.Results: Given the typically mild course of pediatric COVID-19, supportive care alone is suggested for the overwhelming majority of cases. The panel suggests a decision-making framework for antiviral therapy that weighs risks and benefits based on disease severity as indicated by respiratory support needs, with consideration on a case-by-case basis of potential pediatric risk factors for disease progression. If an antiviral is used, the panel suggests remdesivir as the preferred agent. Hydroxychloroquine could be considered for patients who are not candidates for remdesivir or when remdesivir is not available. Antivirals should preferably be used as part of a clinical trial if available.Conclusions: Antiviral therapy for COVID-19 is not necessary for the great majority of pediatric patients. For those rare cases of severe or critical disease, this guidance offers an approach for decision-making regarding antivirals, informed by available data. As evidence continues to evolve rapidly, the need for updates to the guidance is anticipated.

12 September 2020 in Journal of the Pediatric Infectious Diseases Society
Verified
Journal Article
Open access
PDF file
KCKathleen Chiotos
Kathleen Chiotos
MHMolly Hayes
Molly Hayes
DKDavid W Kimberlin
David W Kimberlin
SJSarah B Jones
Sarah B Jones
SJScott H James
Scott H James
MNMari M Nakamura
Mari M Nakamura
Background: Although coronavirus disease 2019 (COVID-19) is a mild infection in most children, a small proportion develop severe or critical illness. Data describing agents with potential antiviral activity continue to expand such that updated guidance is needed regarding use of these agents in children.Methods: A panel of pediatric infectious diseases physicians and pharmacists from 20 geographically diverse North American institutions was convened. Through a series of teleconferences and web-based surveys, a set of guidance statements was developed and refined based on review of the best available evidence and expert opinion.Results: Given the typically mild course of COVID-19 in children, supportive care alone is suggested for most cases. For children with severe illness, defined as a supplemental oxygen requirement without need for noninvasive or invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO), remdesivir is suggested, preferably as part of a clinical trial if available. Remdesivir should also be considered for critically ill children requiring invasive or noninvasive mechanical ventilation or ECMO. A duration of 5 days is appropriate for most patients. The panel recommends against the use of hydroxychloroquine or lopinavir-ritonavir (or other protease inhibitors) for COVID-19 in children.Conclusions: Antiviral therapy for COVID-19 is not necessary for the great majority of pediatric patients. For children with severe or critical disease, this guidance offers an approach for decision-making regarding use of remdesivir.

1 September 2014 in Academic Pediatrics
Verified
Journal Article
Closed access
MNMari M Nakamura
Mari M Nakamura
STSara L. Toomey
Sara L. Toomey
AZAlan M. Zaslavsky
Alan M. Zaslavsky
JBJay G. Berry
Jay G. Berry
SLScott A. Lorch
Scott A. Lorch
MSMark A. Schuster
Mark A. Schuster

19 April 2022 in Journal of the Pediatric Infectious Diseases Society
Verified
Journal Article
Open access
PDF file
BABrenda I Anosike
Brenda I Anosike
VGVeena Ganapathy
Veena Ganapathy
MNMari M Nakamura
Mari M Nakamura
The epidemiology of orbital cellulitis likely has evolved due to the emergence of methicillin-resistant Staphylococcus aureus (MRSA) and the adoption of pneumococcal conjugate vaccination. In the absence of published guidelines, management is highly variable. We characterized epidemiology and management over an 11-year period. A retrospective cohort study of children 0 to 21 years of age with orbital cellulitis +/− subperiosteal orbital abscess hospitalized at a large quaternary children’s hospital from January 2008 to June 2018. We reviewed charts for demographic characteristics, clinical features, management, and outcomes. Using multivariable logistic regression, we evaluated predictors of surgical intervention and assessed whether corticosteroid use or antibiotic duration was related to clinical outcomes. Among 220 patients, methicillin-susceptible S. aureus was the most common organism (26.3%), with MRSA found in only 5.0%. Rates of vancomycin use fluctuated annually from 40.9% to 84.6%. Surgery was performed in 39.5% of the patients. Corticosteroids, used in 70 patients (32.1%), were unrelated to treatment failure (n = 9), defined as persistent signs and symptoms or initial clinical improvement followed by worsening (P = .137). The median antibiotic duration was 17 days (interquartile range 14-26). After controlling for age, gender, proptosis, eye pain with movement, eyelid swelling, neutrophil count, and corticosteroid use, treatment failure was not significantly associated with receipt of ≥ 3 weeks of antibiotic therapy (8/84, 9.5%) compared with > 2 but < 3 weeks (0/51, 0.0%) or ≤ 2 weeks (1/85, 1.2%) (adjusted odds ratio = 5.83 for ≥ 3 vs ≤2 weeks; 95% confidence interval: 0.58, 59.0). Although MRSA was rare, empiric vancomycin use was high. Treatment failure was uncommon in patients who received ≤ 2 weeks of therapy, suggesting that shorter durations are adequate in some patients.

3 January 2021 in Journal of the Pediatric Infectious Diseases Society
Verified
Journal Article
Open access
PDF file
JWJoshua Wolf
Joshua Wolf
MAMark J Abzug
Mark J Abzug
RWRachel L Wattier
Rachel L Wattier
PSPaul Sue
Paul Sue
SVSurabhi B Vora
Surabhi B Vora
GMGabriella M Marόn-Alfaro
Gabriella M Marόn-Alfaro
Background: In November 2020, the US Food and Drug Administration (FDA) provided Emergency Use Authorizations (EUA) for 2 novel virus-neutralizing monoclonal antibody therapies, bamlanivimab and REGN-COV2 (casirivimab plus imdevimab), for the treatment of mild to moderate coronavirus disease 2019 (COVID-19) in adolescents and adults in specified high-risk groups. This has challenged clinicians to determine the best approach to use of these products. Methods: A panel of experts in pediatric infectious diseases, pediatric infectious diseases pharmacy, pediatric intensive care medicine, and pediatric hematology from 29 geographically diverse North American institutions was convened. Through a series of teleconferences and web-based surveys, a guidance statement was developed and refined based on review of the best available evidence and expert opinion. Results: The course of COVID-19 in children and adolescents is typically mild and there is no high-quality evidence supporting any high-risk groups. There is no evidence for safety and efficacy of monoclonal antibody therapy for treatment of COVID-19 in children or adolescents, limited evidence of modest benefit in adults, and evidence for potential harm associated with infusion reactions or anaphylaxis. Conclusions: Based on evidence available as of December 20, 2020, the panel suggests against routine administration of monoclonal antibody therapy (bamlanivimab, or casirivimab and imdevimab), for treatment of COVID-19 in children or adolescents, including those designated by the FDA as at high risk of progression to hospitalization or severe disease. Clinicians and health systems choosing to use these agents on an individualized basis should consider risk factors supported by pediatric-specific evidence and ensure the implementation of a system for safe and timely administration that does not exacerbate existing healthcare disparities.

1 August 2017 in Pediatrics
Verified
Journal Article
Closed access
MNMari M Nakamura
Mari M Nakamura
AZAlan M. Zaslavsky
Alan M. Zaslavsky
STSara L. Toomey
Sara L. Toomey
CPCarter R. Petty
Carter R. Petty
MBMaria C. Bryant
Maria C. Bryant
MSMark A. Schuster
Mark A. Schuster
BACKGROUND AND OBJECTIVE: Lower respiratory infections (LRIs) are among the most common reasons for pediatric hospitalization and among the diagnoses with the highest number of readmissions. Characterizing LRI readmissions would help guide efforts to prevent them. We assessed variation in pediatric LRI readmission rates, risk factors for readmission, and readmission diagnoses. METHODS: We analyzed 2008–2009 Medicaid Analytic eXtract data for patients <18 years of age in 26 states. We identified LRI hospitalizations based on a primary diagnosis of bronchiolitis, influenza, or community-acquired pneumonia or a secondary diagnosis of one of these LRIs plus a primary diagnosis of asthma, respiratory failure, or sepsis/bacteremia. Readmission rates were calculated as the proportion of hospitalizations followed by ≥1 unplanned readmission within 30 days. We used logistic regression with fixed effects for patient characteristics and a hospital random intercept to case-mix adjust rates and assess risk factors. RESULTS: Of 150 590 LRI hospitalizations, 8233 (5.5%) were followed by ≥1 readmission. The median adjusted hospital readmission rate was 5.2% (interquartile range: 5.1%–5.4%), and rates varied across hospitals (P < .0001). Infants (patients <1 year of age), boys, and children with chronic conditions were more likely to be readmitted. The most common primary diagnoses on readmission were LRIs (48.2%), asthma (10.0%), fluid/electrolyte disorders (3.4%), respiratory failure (3.3%), and upper respiratory infections (2.7%). CONCLUSIONS: LRI readmissions are common and vary across hospitals. Multiple risk factors are associated with readmission, indicating potential targets for strategies to reduce readmissions. Readmission diagnoses sometimes seem related to the original LRI.