Publications by authors named "Charles Callahan"

We conducted a single-center study at a free community testing site in Baltimore City to assess the accuracy of self-performed rapid antigen tests (RATs) for COVID-19. Self-administered BinaxNOW RATs were compared with clinician-performed RATs and against a reference lab molecular testing as the gold standard. Of the 953 participants, 14.

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Background: Monoclonal antibody (mAb) treatment for coronavirus disease 2019 (COVID-19) has been underutilized due to logistical challenges, lack of access, and variable treatment awareness among patients and health-care professionals. The use of telehealth during the pandemic provides an opportunity to increase access to COVID-19 care.

Methods: This is a single-center descriptive study of telehealth-based patient self-referral for mAb therapy between March 1, 2021, and October 31, 2021, at Baltimore Convention Center Field Hospital (BCCFH).

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The Baltimore City Health Department (BCHD) has developed a COVID-19 continuum of services to protect special populations at high risk of COVID-19 made possible through inter-agency and public-private partnerships. We present descriptions of each element along with descriptive data. Lessons are discussed to inform future public health frameworks.

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SARS-CoV-2 continues to develop new, increasingly infectious variants including delta and omicron. We evaluated the efficacy of the Abbott BinaxNOW Rapid Antigen Test against Reverse Transcription PCR (RT-PCR) in 1,054 pediatric participants presenting to a high-volume Coronavirus Disease 2019 (COVID-19) testing site while the delta variant was predominant. Both tests utilized anterior nares swabs.

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In May 2020, Baltimore City, Maryland, implemented the Lord Baltimore Triage, Respite, and Isolation Center (LBTC), a multiagency COVID-19 isolation and quarantine site tailored for people experiencing homelessness. In the first year, 2020 individuals were served, 78% completed isolation at LBTC, and 6% were transferred to a hospital. Successful isolation can mitigate outbreaks in shelters and residential recovery programs, and planning for sustainable isolation services integrated within these settings is critical as the COVID-19 pandemic continues.

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Rapid antigen tests are simple to perform and provide results within 15 min. We describe our implementation and assess performance of the BinaxNOW COVID-19 Antigen Test (Abbott Laboratories) in 6,099 adults at a self-referred walk-up testing site. Participants were grouped by self-reported COVID-19 exposure and symptom status.

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The state of Maryland identified its first case of coronavirus disease 2019 (COVID-19) on March 5, 2020. The Baltimore Convention Center (BCCFH) quickly became a selected location to set up a 250-bed inpatient field hospital and alternate care site. In contrast to other field hospitals throughout the United States, the BCCFH remained open throughout the pandemic and took on additional COVID-19 missions, including community severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) diagnostic testing, monoclonal antibody infusions for COVID-19 outpatients, and community COVID-19 vaccinations.

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Background: Vomiting, diarrhea, and severe dehydration are common manifestations of Ebola virus disease (EVD), leading to its high mortality. Mortality is especially high in patients older than 45 years, younger than 5 years, and in pregnant women and their fetuses. The majority of patients with EVD are not able to tolerate the quantities of oral hydration solutions necessary to rehydrate properly.

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Morrison argued that demography, economy, and technology drive the evolution of industries from a formative first-generation state ("First Curve") to a radically different way of doing things ("Second Curve") that is marked by new skills, strategies, and partners. The current health-reform movement in the United States reflects these three key evolutionary trends: surging medical needs of an aging population, dramatic expansion of Medicare spending, and care delivery systems optimized through powerful information technology. Successful transition from a formative first-generation state (First Curve) to a radically different way of doing things (Second Curve) will require new skills, strategies, and partners.

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The future of orthopaedic surgery will be shaped by unprecedented demographic and economic challenges, necessitating movement to so-called "second curve" innovations in the delivery of care. Implementation of integrated care pathways (ICPs) may be one solution to imminent cost and access pressures facing orthopaedic patients in this era of health-care accountability and reform. ICPs can lower costs and the duration of hospital stay while facilitating better outcomes through enhanced interspecialty communication.

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Objectives: Emergency department (ED) patient satisfaction remains a high priority for many hospitals. Patient surveys are a common tool for measuring patient satisfaction, and process improvement efforts are aimed at improving patient satisfaction scores. In some institutions, patient satisfaction scores can be calculated for each emergency physician (EP).

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The development of medical care for U.S. military families and retirees was serendipitous, a fortunate accident.

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Background: Emesis can be triggered by cough in children, and cough is a common symptom of asthma.

Objective: To explore the association between posttussive emesis and asthma in the pediatric population.

Methods: A questionnaire was distributed to parents of children between the ages of 2 and 17 years in the pediatric and allergy-immunology clinics at our institution from August 16 through November 3, 2008.

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Purpose: The case of a patient with severe sepsis who received a bolus dose of 184 microg/kg of drotrecogin alfa (activated) over one hour is reported.

Summary: An 84-year-old woman who had undergone right total knee replacement was admitted to the hospital from a rehabilitation facility with an initial diagnosis of mental status changes and a suspected urinary tract infection. Examination of the patient's incision from her recent knee surgery revealed a discharge, and a culture was obtained.

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Gram stains of positive blood cultures are the most important factor influencing appropriate therapy. The sooner appropriate therapy is initiated, the better. Therefore, it is reasonable to expect that the sooner Gram stains are performed, the better.

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Objective: The objective of this study was to determine whether age
Methods: A retrospective chart review was conducted of 1132 noncoalition trauma patients who were admitted to a combat support hospital between December 2003 and December 2004. Data on age, severity of injury indices, and in-hospital mortality rates were analyzed.

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Objective: Our objective in this report was to describe the epidemiologic features of and workload associated with pediatric admissions to 12 US Army military hospitals deployed to Iraq and Afghanistan.

Methods: The Patient Administration Systems and Biostatistics Activity database was queried for all local national patients <18 years of age who were admitted to deployed Army hospitals in Afghanistan and Iraq between December 2001 and December 2004.

Results: Pediatric admissions during the study period were 1012 (4.

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Objective: The goal was to determine whether home asthma telemonitoring with store-and-forward technology improved outcomes, compared with in-person, office-based visits.

Methods: A total of 120 patients, 6 to 17 years of age, with persistent asthma were assigned randomly to the office-based or virtual group. The 2 groups followed the same ambulatory clinical pathway for 12 months.

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