Publications by authors named "Kristina Keitel"

Background: Sub-optimal healthcare quality in low-resource settings is attributed in part to poor adherence to clinical guidelines. Clinical decision support systems (CDSS) help to integrate guideline-based algorithms into logical workflows and improve adherence to evidence-based recommendations, and hence quality of care. However, the process of translating paper-based guidelines into electronic algorithmic formats is often complex, inefficient, expensive, and error-prone due to reliance on advanced software development skills and clinical knowledge.

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Primary health systems in resource-constrained settings suffer from human resource shortages, low quality care, and diagnostic uncertainty, resulting in over-reliance on antibiotics, increasing risks of antimicrobial resistance. Digital clinical decision support algorithms (CDSAs) help healthcare workers adhere to clinical guidelines and improve prescribing practices. In this manuscript, we present the scope and content of 'ePOCT+ Rwanda' (electronic Point-Of-Care Tests +), a CDSA trialed in primary health centers of Rusizi and Nyamasheke districts during the DYNAMIC project.

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Objective: To prospectively validate InfoKids+, a pediatric acuity electronic risk stratification algorithm (eRSA), against a nurse-based triage standard (nbTS).

Participants And Methods: We conducted a prospective validation study in a Swiss university hospital pediatric emergency department to assess the performance of a pediatric acuity eRSA, InfoKids+, on the basis of a well-established parental guidance application, InfoKids. Participants completed the eRSA once seated in a consultation booth.

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Background: In response to the challenges faced by emergency departments (ED), including overcrowding and high patient volumes, Fast Track (FT) systems are designed to optimize patient flow, yet their implementation and impact in Switzerland remain understudied. Our study provides a comprehensive description of Fast Track (FT) processes across both pediatric and adult settings in Switzerland and compares challenges.

Methods: We conducted a cross-sectional online survey of ED leadership in Switzerland from May to September 2023, using the WHO SARA framework to explore FT processes.

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Background: Caregiver concern is the main driver to paediatric emergency departments visits. Understanding caregiver worries is crucial to guide patients to the most appropriate healthcare setting. Previous research shows mixed findings on the accordance between caregiver assessment and professional triage.

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Digital clinical decision support tools have contributed to improved quality of care at primary care level health facilities. However, data from real-world randomized trials are lacking. We conducted a cluster randomized, open-label trial in Tanzania evaluating the use of a digital clinical decision support algorithm (CDSA), enhanced by point-of-care tests, training and mentorship, compared with usual care, among sick children 2 to 59 months old presenting to primary care facilities for an acute illness in Tanzania (ClinicalTrials.

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Objective: To investigate a dose-response relationship between the magnitude of decrease in pediatric respiratory tract infections (RTIs) during the 2020 implementation of nonpharmaceutical interventions (NPIs) and the increase thereafter during NPI lifting.

Study Design: We conducted an interrupted, time-series analysis based on a multinational surveillance system. All patients <16 years of age coming to medical attention with various symptoms and signs of RTI at 25 pediatric emergency departments from 13 European countries between January 2018 and June 2022 were included.

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Article Synopsis
  • * The MYTHIC Study is designed as a rigorous trial involving 13 Swiss pediatric centers, comparing macrolide treatment to placebo in children aged 3-17 diagnosed with pneumonia, using precise tests to confirm M. pneumoniae infection.
  • * The main goals are to assess the time to stabilize vital signs and determine any changes in patient care within 28 days, with an aim to show that the placebo is not significantly less effective than macrolide treatment in managing this infection.
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A Europe-wide outbreak of invasive pediatric group A streptococcal infections (iGAS) began in fall 2022. Here, we report the evolution of GAS hospitalizations in children and adolescents during the second outbreak year in 2023-2024 at a tertiary center in Switzerland. Using prospective monitoring of all in-patient GAS cases below 16 years of age, including those with iGAS, we compared case frequencies and clinical characteristics in three time periods (2013-2020; 2022-2023; 2023-2024).

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Effective and sustainable strategies are needed to address the burden of preventable deaths among children under-five in resource-constrained settings. The Tools for Integrated Management of Childhood Illness (TIMCI) project aims to support healthcare providers to identify and manage severe illness, whilst promoting resource stewardship, by introducing pulse oximetry and clinical decision support algorithms (CDSAs) to primary care facilities in India, Kenya, Senegal and Tanzania. Health impact is assessed through: a pragmatic parallel group, superiority cluster randomised controlled trial (RCT), with primary care facilities randomly allocated (1:1) in India to pulse oximetry or control, and (1:1:1) in Tanzania to pulse oximetry plus CDSA, pulse oximetry, or control; and through a quasi-experimental pre-post study in Kenya and Senegal.

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Article Synopsis
  • Early detection of at-risk children in low- and middle-income countries (LMICs) is crucial for reducing severe health complications and deaths.
  • The study validated the Emergency Department-Pediatric Early Warning Score (ED-PEWS) using clinical data from various LMICs to assess its effectiveness in identifying children needing urgent care.
  • Results showed that the ED-PEWS is moderately to highly effective at recognizing high-urgency cases, with sensitivity and specificity varying across different locations, highlighting its potential to improve urgent care in these settings.
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Purpose: The massive increase of infections with Group A Streptococcus (GAS) in 2022-2023 coincided in Switzerland with a change of the recommendations for the management of GAS pharyngitis. Therefore, the objective of the present study was to investigate whether the clinical manifestations and management before hospitalization for GAS infection differed in 2022-2023 compared with 2013-2022.

Methods: Retrospective study of GAS infections requiring hospitalization in patients below 16 years.

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Background: A recent study conducted at our tertiary hospital emergency department (ED) reviewed ED consultations and found that adolescents aged 16-18 years present significantly more often for trauma and psychiatric problems than adults over 18 years. Accidental injuries are one of the greatest health risks for children and adolescents. In view of the increased vulnerability of the adolescent population, this study aimed to further analyse trauma-related presentations in adolescents.

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Purpose: Low-acuity pediatric emergency department (PED) visits are frequent in high-income countries and have a negative impact on patient care at the individual and health system levels. Knowing what drives low-acuity PED visits is crucial to inform adaptations in health care delivery. We aimed to identify factors associated with low-acuity PED visits in Switzerland, including socioeconomic status, demographic features, and medical resources of families.

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Objectives: Communication is a main challenge in migrant health and essential for patient safety. The aim of this study was to describe the satisfaction of caregivers with limited language proficiency (LLP) with care related to the use of interpreters and to explore underlying and interacting factors influencing satisfaction and self-advocacy.

Design: A mixed-methods study.

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Excessive antibiotic use and antimicrobial resistance are major global public health threats. We developed ePOCT+, a digital clinical decision support algorithm in combination with C-reactive protein test, hemoglobin test, pulse oximeter and mentorship, to guide health-care providers in managing acutely sick children under 15 years old. To evaluate the impact of ePOCT+ compared to usual care, we conducted a cluster randomized controlled trial in Tanzanian primary care facilities.

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Background: Improved tools are required to detect bacterial infection in children with fever without source (FWS), especially when younger than 3 years old. The aim of the present study was to investigate the diagnostic accuracy of a host signature combining for the first time two viral-induced biomarkers, tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) and interferon γ-induced protein-10 (IP-10), with a bacterial-induced one, C-reactive protein (CRP), to reliably predict bacterial infection in children with fever without source (FWS) and to compare its performance to routine individual biomarkers (CRP, procalcitonin (PCT), white blood cell and absolute neutrophil counts, TRAIL, and IP-10) and to the Labscore.

Methods: This was a prospective diagnostic accuracy study conducted in a single tertiary center in children aged less than 3 years old presenting with FWS.

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Clinical decision support systems (CDSSs) can strengthen the quality of integrated management of childhood illness (IMCI) in resource-constrained settings. Several IMCI-related CDSSs have been developed and implemented in recent years. Yet, despite having a shared starting point, the IMCI-related CDSSs are markedly varied due to the need for interpretation when translating narrative guidelines into decision logic combined with considerations of context and design choices.

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Clinical Decision Support Systems (CDSS) have the potential to improve and standardise care with probabilistic guidance. However, many CDSS deploy static, generic rule-based logic, resulting in inequitably distributed accuracy and inconsistent performance in evolving clinical environments. Data-driven models could resolve this issue by updating predictions according to the data collected.

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Correct management of infants after minor head trauma is crucial to minimize the risk to miss clinically important traumatic brain injury (ciTBI). Current practices typically involve CT or in-hospital surveillance. Cranial ultrasound (CUS) provides a radiation-free and fast alternative.

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Objectives: To describe the development and usage of www.coronabambini.ch as an example of a paediatric electronic public health application and to explore its potential and limitations in providing information on disease epidemiology and public health policy implementation.

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Article Synopsis
  • ePOCT+ Development
  • : A new electronic clinical decision support algorithm (CDSA), called ePOCT+, was created to help reduce childhood mortality and improve antibiotic prescribing practices in low- and middle-income countries by guiding clinicians to follow established medical guidelines.
  • medAL-Suite
  • : The medAL-suite software was developed to streamline the creation and application of CDSAs, allowing healthcare professionals without technical skills to design algorithms easily, using tools like medAL-creator and medAL-reader for consultations.
  • Validation and Future Plans
  • : The algorithms underwent thorough reviews and usability tests by experts across several countries to ensure clinical relevance, with ongoing clinical validation studies planned in Tanzania, Rwanda, Kenya, Senegal, and India
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Article Synopsis
  • The study aims to analyze the pathogens causing community-acquired pneumonia in children in Switzerland, especially focusing on the role of respiratory viruses since conjugate vaccines have been introduced.
  • The research involved 138 children, primarily under 5 years old, examining their clinical symptoms, antibiotic use, and pathogen detection through advanced testing methods.
  • Findings indicate a high prevalence of viral infections, particularly respiratory syncytial virus, suggesting that a significant portion of antibiotic treatments might be unnecessary, highlighting the need for ongoing studies to further assess pathogen profiles in the post-COVID-19 era.
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