Self-administered versus clinician-performed BinaxNOW COVID rapid test: a comparison of accuracy.

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, 14.9% were positive for SARS- CoV-2 as determined by RT-PCR. The sensitivity and specificity were similar for both self- and clinician-performed RATs (sensitivity: 83.9% vs 88.2%, P = 0.40; specificity: 99.8% vs 99.6%, P = 0.6). Subgroup comparisons based on age and race yielded similar results. Notably, 5.2% (95% CI: 1.5% to 9.5%) of positive results were potentially missed due to participant misinterpretation of the self-test card. However, the false-positive rate for RATs was reassuringly comparable in accuracy to clinician-administered tests. These findings hold significant implications for physicians prescribing treatment based on patient-reported, self-administered positive test results. Our study provides robust evidence supporting the reliability and utility of patient-performed RATs, underscoring their comparable accuracy to clinician-performed RATs, and endorsing their continued use in managing COVID-19. Further studies using other rapid antigen test brands are warranted.IMPORTANCEAccurate and accessible COVID-19 testing is crucial for effective disease control and management. A recent single-center study conducted in Baltimore City examined the reliability of self-performed rapid antigen tests (RATs) for COVID-19. The study found that self-administered RATs yielded similar sensitivity and specificity to clinician-performed tests, demonstrating their comparable accuracy. These findings hold significant implications for physicians relying on patient-reported positive test results for treatment decisions. The study provides robust evidence supporting the reliability and utility of patient-performed RATs, endorsing their continued use in managing COVID-19. Furthermore, the study highlights the need for further research using different rapid antigen test brands to enhance generalizability. Ensuring affordable and widespread access to self-tests is crucial, particularly in preparation for future respiratory virus seasons and potential waves of reinfection of SARS-CoV-2 variants such as the Omicron variant.

High Sensitivity and NPV for BinaxNOW Rapid Antigen Test in Children at a Mass Testing Site during Prevalent Delta Variant Period.

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. Participants were grouped by COVID-19 exposure and symptom status. 5.2% of samples tested positive by RT-PCR for SARS-CoV-2. For all participants, sensitivity of the BinaxNOW was 92.7% (95% CI 82.4%-98.0%), and specificity was 98.0% (95% CI 97.0%-98.8%). For symptomatic participants, positive predictive value (PPV) was 72.7% (95% CI 54.5%-86.7%) and negative predictive value (NPV) was 99.2% (95% CI 98.2%-100%). Among asymptomatic participants, PPV was 71.4% (95% CI 53.7%-85.4%) and NPV was 99.7% (95% CI 99.0%-100%). Our reported sensitivity and NPV are higher than other pediatric studies, potentially because of higher viral load from the delta variant, but specificity and PPV are lower. IMPORTANCE The BinaxNOW rapid antigen COVID-19 test had a sensitivity of nearly 92% in both symptomatic and asymptomatic children when performed at a high-throughput setting during the more transmissible delta variant dominant period. The test may play an invaluable role in asymptomatic screening and keeping children safe in school.

Implementation of Baltimore City's COVID-19 Isolation Hotel.

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. (Am J Public Health. 2022;112(6):876-880. https://doi.org/10.2105/AJPH.2022.306778).

Implementation and Accuracy of BinaxNOW Rapid Antigen COVID-19 Test in Asymptomatic and Symptomatic Populations in a High-Volume Self-Referred Testing Site.

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. Most (89%) were asymptomatic, of whom 17% reported potential exposure. Overall test sensitivity compared with reference laboratory reverse-transcription [RT] PCR testing was 81% (95% confidence interval [CI] 75%, 86%). It was higher in symptomatic (87%; 95% CI 80%, 91%) than asymptomatic (71%; 95% CI 61%, 80%) individuals. Sensitivity was 82% (95% CI 66%, 91%) for asymptomatic individuals with potential exposure and 64% (95% CI 51%, 76%) for those with no exposure. Specificity was greater than 99% for all groups. BinaxNOW has high accuracy among symptomatic individuals and is below the FDA threshold for emergency use authorization in asymptomatic individuals. Nonetheless, rapid antigen testing quickly identifies positive among those with symptoms and/or close contact exposure and could expedite isolation and treatment. IMPORTANCE The BinaxNOW rapid antigen COVID-19 test had a sensitivity of 87% in symptomatic and 71% asymptomatic individuals when performed by health care workers in a high-throughput setting. The performance may expedite isolation decisions or referrals for time-sensitive monoclonal antibody treatment in communities where timely COVID PCR tests are unavailable.

The Use of Intraosseous Fluid Resuscitation in a Pediatric Patient with Ebola Virus Disease.

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. Although some have speculated that IV and intraosseous lines are not practical in the austere, resource-constrained settings of an Ebola treatment unit during an epidemic, it is necessary to provide parenteral fluids and electrolyte replacements to significantly decrease mortality. Due to the inability to spend long periods of time working in hot environments wearing personal protective equipment, it is necessary to maximize the use of rapidly obtainable and safe parenteral access. CASE REPORT: The authors present a case of a 9-month-old patient with EVD in Sierra Leone in whom an intraosseous line was lifesaving. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Emergency physicians respond to international crises, such as the most recent Ebola epidemic in West Africa. It is important for such responders, as well as their responding organizations, to know and understand that intraosseous access is an important and safe modality to use in patients with EVD and in the austere settings often found in disaster settings.

Finally "deliberate by design": milestones in the delivery of health care for U.S. military family members.

The development of medical care for U.S. military families and retirees was serendipitous, a fortunate accident. The formal development of military family medical care required the evolution of three factors: the emergence of a standing army, frontiers to guard, and a peace to defend. These factors were first realized in the late 19th Century, and beginning at that point in U.S. history, seven key years highlight major milestones in the history of military family member medical care. At the same time, these years exemplify changing ideas of disease and of health care and how the physical design of clinics and hospitals reflects and impacts these ideas. The Fort Belvoir Community Hospital, which opens in 2011, exemplifies the Nation's best example of green hospital construction, patient and family centered care, and evidence-based design in a Culture of Excellence that demonstrates that military family medical care is finally "deliberate by design."

Posttussive emesis as a symptom of asthma in children.

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. Prevalence of posttussive emesis was determined and compared among children with physician-diagnosed asthma, children with no evidence of asthma, and those not formally diagnosed as having asthma but with surrogate markers suggestive of asthma. The predictive value of posttussive emesis was compared with those of known markers of asthma. The prevalence of gastroesophageal reflux and pertussis was evaluated because these conditions might also cause posttussive emesis. RESULTS: The prevalence of posttussive emesis was 33% in our study population of 500 children. Among those with physician-diagnosed asthma (n = 122), 56% reported a history of posttussive emesis. For patients not formally diagnosed as having asthma but with surrogate markers suggestive of asthma (n = 62), 71% had a history of posttussive emesis. Both of these were significantly higher than in those with no evidence of asthma (n = 316), in whom 16% reported a history of posttussive emesis (P < .0005). Children with posttussive emesis were significantly more likely to have asthma than those without posttussive emesis (odds ratio, 7.9; 95% confidence interval, 5.2-12). Neither pertussis nor gastroesophageal reflux accounted for the degree of posttussive emesis reported. CONCLUSIONS: Posttussive emesis is more common among children with asthma than among nonasthmatic children. In children with cough and a history of posttussive emesis, asthma should be strongly considered in the differential diagnosis.

Pediatric care as part of the US Army medical mission in the global war on terrorism in Afghanistan and Iraq, December 2001 to December 2004.

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 (4.2%) of 24,227 admissions, occupying 10% of all bed-days. The median length of stay was 4 days (interquartile range: 1-8 days). The largest proportion of children were 11 to 17 years of age (332 of 757 children; 44%), although 45 (6%) of 757 children hospitalized were <1 year of age. The majority (63%) of pediatric patients admitted required either general surgical or orthopedic procedures. The in-hospital mortality rate for all pediatric patients was 59 (5.8%) of 1012 patients, compared with 274 (4.5%) of 6077 patients for all adult non-US coalition patients. CONCLUSIONS: Pediatric patients with injuries threatening life, limb, or eyesight are part of the primary responsibility of military medical facilities during combat and have accounted for a significant number of admissions and hospital bed-days in deployed Army hospitals in Afghanistan and Iraq. Military medical planners must continue to improve pediatric medical support, including personnel, equipment, and medications that are necessary to treat children injured during combat operations, as well as those for whom the existing host nation medical infrastructure is unable to provide care.

Internet-based home monitoring and education of children with asthma is comparable to ideal office-based care: results of a 1-year asthma in-home monitoring trial.

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. Office-based group patients received traditional in-person education and case management. Virtual group patients received computers, Internet connections, and in-home, Internet-based case management and received education through the study Web site. Disease control outcome measures included quality of life, utilization of services, and symptom control. RESULTS: A total of 120 volunteers (45 female) were enrolled. The groups were clinically comparable (office-based: 22 female/38 male; mean age: 9.0 +/- 3.0 years; virtual: 23 female/37 male; mean age: 10.2 +/- 3.1 years). Virtual patients had higher metered-dose inhaler with valved holding chamber technique scores than did the office-based group at 52 weeks (94% vs 89%), had greater adherence to daily asthma symptom diary submission (35.4% vs 20.8%), had less participant time (636 vs 713 patient-months), and were older. Caregivers in both groups perceived an increase in quality of life and an increase in asthma knowledge scores from baseline. There were no other differences in therapeutic or disease control outcome measures. CONCLUSIONS: Virtual group patients achieved excellent asthma therapeutic and disease control outcomes. Compared with those who received standardized office-based care, they were more adherent to diary submission and had better inhaler scores at 52 weeks. Store-and-forward telemedicine technology and case management provide additional tools to assist in the management of children with persistent asthma.

Concurrent use of metered-dose and dry powder inhalers by children with persistent asthma does not adversely affect spacer/inhaler technique.

BACKGROUND: Studies conducted in adults have suggested that patients who use a metered-dose inhaler/holding chamber spacer (MDI/S) and dry powder inhaler (DPI) concurrently will have poorer MDI/S technique than that of patients who use MDI/S exclusively. To our knowledge, as of August 31, 2006, no studies have been performed in pediatric patients. OBJECTIVE: To compare MDI/S technique scores of children using only MDI/S with scores of those using both MDI/S and DPIs. METHODS: The MDI/S technique of children aged 6-17 years, with persistent asthma, recruited from a general pediatric practice population for an asthma intervention study project was scored using a standardized checklist. MDI/S scores of children who were being treated with maintenance and rescue medication delivered only by MDI/S were compared with those treated with both MDI/S (rescue) and DPI (maintenance). Scores lower than 70% were considered to be inadequate. RESULTS: A total of 117 patients (73 male, 44 female), aged 9.70 +/- 3.1 years (mean +/- SD), with persistent asthma, participated in the study. There were 83 children (54 male, 29 female, age 9.4 +/- 3.2 y) in the MDI/S only group and 34 (19 male, 15 female, age 10.3 +/- 2.9 y) in the MDI/S + DPI group. In the MDI/S + DPI group, Diskus was the DPI used for 32 patients, and Turbuhaler was used by 2 children. Sixteen patients had severe persistent asthma, 80 had moderate persistent asthma, and 21 had mild persistent asthma as classified by National Heart Lung and Blood Institute guidelines. No difference in sex and age demographics existed; however, there was a difference in the distribution of asthma severity between groups (ie, no patients with mild persistent asthma in the MDI/S + DPI group; p < or = 0.01). Mean score for the MDI/S only group was 86 +/- 17% and, for the MDI/S + DPI group, 90.1 +/- 12% (p = 0.15). More patients in the MDI/S group had inadequate scores (18%) compared with those in the MDI/S + DPI group (3%; p < 0.05). CONCLUSIONS: While DPI and MDI/S techniques are markedly different in several significant ways, concurrent use of these inhalers did not adversely affect MDI/S technique scores of pediatric patients with persistent asthma, compared with those using MDI/S alone. Patients in the MDI/S only group had an inadequate MDI/S score (<70%) more often than did patients in the MDI/S + DPI group.

Increased diagnosis of asthma in hospitalized infants: the next target population for care management?

Hospitalization of children with asthma declined at our institution between 1996 and 2000, before stabilizing for the past 5 years. The ages of children hospitalized since 2000 were examined to see if the demographics of the hospitalized population have changed to better understand why the hospitalization rate has remained the same despite continued, aggressive screening and education efforts. Data were gathered for our hospital through the Department of Defense Medical Health System Management Analysis and Reporting System (M2). The mean age (+/- SD) of children hospitalized in 2003 (2.84 +/- 2.53) was less than the mean age for 2000 and 2002 (4.85 +/- 3.7 and 4.61 +/- 4.45), respectively (p < 0.05), and more infants less than 2 years of age were hospitalized in 2003 (33/60, 55% p < 0.01) and 2004 (32/68, 47% p < 0.05) than in 2000 (19/70, 27%). The diagnosis of asthma in hospitalized infants and young children has increased over the past 5 years, suggesting better recognition and providing a new target population for intervention with early asthma controller therapy.

Effectiveness of an Internet-based store-and-forward telemedicine system for pediatric subspecialty consultation.

BACKGROUND: Pediatric subspecialists are often separated from the children who need them by distance, time, or socioeconomic factors. The Electronic Children's Hospital of the Pacific is an Internet-based store-and-forward pediatric consultation system established to overcome these barriers. OBJECTIVE: To characterize the use of the Electronic Children's Hospital of the Pacific and its impact on access to specialty care, the quality of the care provided, and cost savings. DESIGN: Prospective trial. SETTING: Twenty-two military treatment facilities in the Pacific. PARTICIPANTS: Primary care providers, pediatric consultants, and 5 reviewers. MAIN OUTCOME MEASURES: Consult response time, physician panel review, and evacuation cost avoidance. RESULTS: There were 267 cases from 16 sites. The mean +/- SD response time by a consultant was 32 +/- 8 hours. The panel review deemed that the initial diagnosis was changed or modified in 15% (39/267) of the cases, the diagnostic plan was changed or modified in 21% (57/267), and the treatment plan was changed or modified in 24% (64/267) (P < .01 for all). Routine air evacuations to a tertiary care medical center were avoided in 32 cases (12%), with an estimated cost savings of $185 408. CONCLUSIONS: The Electronic Children's Hospital of the Pacific improved the quality of patient care by providing expeditious specialty consultation. Significant cost avoidance in this military pediatric population was documented. Store-and-forward Internet-based teleconsultation is an effective means of providing pediatric subspecialty consultation to a population of underserved children.