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1.
PLOS Digit Health ; 2(1): e0000170, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36812607

RESUMEN

Electronic clinical decision support algorithms (CDSAs) have been developed to address high childhood mortality and inappropriate antibiotic prescription by helping clinicians adhere to guidelines. Previously identified challenges of CDSAs include their limited scope, usability, and outdated clinical content. To address these challenges we developed ePOCT+, a CDSA for the care of pediatric outpatients in low- and middle-income settings, and the medical algorithm suite (medAL-suite), a software for the creation and execution of CDSAs. Following the principles of digital development, we aim to describe the process and lessons learnt from the development of ePOCT+ and the medAL-suite. In particular, this work outlines the systematic integrative development process in the design and implementation of these tools required to meet the needs of clinicians to improve uptake and quality of care. We considered the feasibility, acceptability and reliability of clinical signs and symptoms, as well as the diagnostic and prognostic performance of predictors. To assure clinical validity, and appropriateness for the country of implementation the algorithm underwent numerous reviews by clinical experts and health authorities from the implementing countries. The digitalization process involved the creation of medAL-creator, a digital platform which allows clinicians without IT programming skills to easily create the algorithms, and medAL-reader the mobile health (mHealth) application used by clinicians during the consultation. Extensive feasibility tests were done with feedback from end-users of multiple countries to improve the clinical algorithm and medAL-reader software. We hope that the development framework used for developing ePOCT+ will help support the development of other CDSAs, and that the open-source medAL-suite will enable others to easily and independently implement them. Further clinical validation studies are underway in Tanzania, Rwanda, Kenya, Senegal, and India.

2.
Pathogens ; 11(3)2022 Mar 08.
Artículo en Inglés | MEDLINE | ID: mdl-35335651

RESUMEN

In childhood tuberculosis (TB), with an estimated 69% of missed cases in children under 5 years of age, the case detection gap is larger than in other age groups, mainly due to its paucibacillary nature and children's difficulties in delivering sputum specimens. Accurate and accessible point-of-care tests (POCTs) are needed to detect TB disease in children and, in turn, reduce TB-related morbidity and mortality in this vulnerable population. In recent years, several POCTs for TB have been developed. These include new tools to improve the detection of TB in respiratory and gastric samples, such as molecular detection of Mycobacterium tuberculosis using loop-mediated isothermal amplification (LAMP) and portable polymerase chain reaction (PCR)-based GeneXpert. In addition, the urine-based detection of lipoarabinomannan (LAM), as well as imaging modalities through point-of-care ultrasonography (POCUS), are currently the POCTs in use. Further to this, artificial intelligence-based interpretation of ultrasound imaging and radiography is now integrated into computer-aided detection products. In the future, portable radiography may become more widely available, and robotics-supported ultrasound imaging is currently being trialed. Finally, novel blood-based tests evaluating the immune response using "omic-"techniques are underway. This approach, including transcriptomics, metabolomic, proteomics, lipidomics and genomics, is still distant from being translated into POCT formats, but the digital development may rapidly enhance innovation in this field. Despite these significant advances, TB-POCT development and implementation remains challenged by the lack of standard ways to access non-sputum-based samples, the need to differentiate TB infection from disease and to gain acceptance for novel testing strategies specific to the conditions and settings of use.

5.
Pediatrics ; 142(2)2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-30065004

RESUMEN

Historically linked to sea voyagers in the 18th century, scurvy has become extremely rare during the last century in developed countries. However, it is still present in some at-risk populations and often overlooked in pediatric patients with restricted diets due to behavioral, neurodevelopmental, or psychiatric problems. So far, the only known etiology of developing scurvy is nutritional deficiency of vitamin C. In this report, we describe the case of a 3-year-old previously healthy Swiss girl without any history of previous poor dietary intake, who presented a picture of systemic inflammation including persisting fever, palpable purpura located on the extensor sides of the extremities, refusal to bear weight, and gingival bleeding. Blood tests revealed a significant increase of inflammatory markers and hypoalbuminemia. Full-body MRI revealed symmetrical bone marrow edema consistent with findings in previously reported cases of children with scurvy. After starting a high-dose oral vitamin C supplementation, the patient showed rapid clinical, laboratory, and radiologic improvement, but after stopping the treatment 4 months later, the patient developed relapse symptoms with pronounced fatigue, refusing to walk, and hair loss. These symptoms led us to restart the oral supplementation, which resulted in secondary normalization of her condition. The cause of her symptoms still remains unclear and presents the first case to our knowledge describing scurvy symptoms that are not directly linked to deficient dietary intake.


Asunto(s)
Ácido Ascórbico/uso terapéutico , Escorbuto/etiología , Preescolar , Diagnóstico Diferencial , Suplementos Dietéticos , Femenino , Humanos , Imagen por Resonancia Magnética/métodos , Recurrencia , Escorbuto/diagnóstico , Escorbuto/tratamiento farmacológico
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