Background/Objectives: Road traffic accidents represent the leading cause of death in children and adolescents in Brazil. In the state of Piauí, non-specialized facilities frequently manage critically injured pediatric patients. Targeted training programs are considered a key strategy for improving outcomes. This study assessed the feasibility of adapting a pediatric trauma course developed in a high-income setting for medical first responders in both pre-hospital and in-hospital settings in a resource-limited environment in northeastern Brazil. Methods: This prospective non-randomized mixed-methods feasibility-oriented implementation and educational evaluation study involved the design of a simulation-based course based on a literature review by a German interprofessional and interdisciplinary team. Local adaptation was achieved through a needs assessment, field visits, and stakeholder collaboration. Implementation included the training of Brazilian instructor candidates, who subsequently delivered the course under supervision. Data were collected using study-specific, non-validated questionnaires at two timepoints and analyzed descriptively and exploratively. Results: A total of 98 healthcare professionals participated in the needs assessment (mean experience 9.7 ± 6.3 years; 62.2% nursing staff); 66 completed the pediatric trauma management section. Although familiarity with the ABCDE approach was high (86%), confidence in pediatric trauma management was significantly lower than management in adults (47% vs. 68%, p = 0.0018), particularly for invasive procedures. During implementation, 38 participants completed the course, with a 100% recommendation rate; approximately 80% felt prepared to teach independently. However, participants and instructors highlighted the need for more practical training, longer course duration, and follow-up instructor training. Conclusions: A context-adapted, simulation-based pediatric trauma training program was feasibly implemented and well accepted in a resource-limited region of Brazil. The train-the-trainer approach shows promise for strengthening local pediatric trauma capacity, but sustained implementation requires continued instructor development, supervised teaching, and long-term evaluation of educational and clinical outcomes.

People with post-COVID syndrome (PCS) often suffer from long-term pulmonary consequences. Singing-based respiratory training (SBRT) has proven to be a valuable rehabilitative therapy for people with chronic lung diseases. The aim of this study was to investigate the feasibility of SBRT in people with PCS breathing disorders, their compliance and adherence, and to obtain detailed findings on the effect of this training on people with PCS respiratory symptoms. A randomized controlled, single-blind, bicentric study was conducted with 23 outpatient and 24 inpatient participants undergoing rehabilitation for PCS. Participants either received singing-based respiratory training with the intention of reducing breathing rate or training without the aim of influencing breathing rate. The main outcomes were patient compliance, determination of target parameters for a future efficacy study, and assessment of outcome differences between treatment groups. The 45 study participants were predominantly female (81 %) with a mean age of 51.5 (SD 10.44) years. There was a high level of compliance with SBRT, with 96 % of participants completing all training sessions led by vocal coaches. The overall comparison between baseline and follow-up assessments yielded improvements corresponding to medium effects in the physical component score of the Veterans RAND 12-Item Health Survey (VR-12) with a Cohen's d of 0.52 (95 % Confidence Interval, CI 0.05 to 0.99]), in the Generalized Anxiety Disorder Scale-7 (GAD-7) with a Cohen's d of 0.55 (95 % CI 0.11 to 0.9) and in the Patient Health Questionnaire-9 (PHQ-9) with a Cohen's d of 0.50 (95 % CI 0.06 to 0.93). SBRT was well-tolerated, with high adherence and compliance among participants in our study. Questionnaires assessing health-related quality of life and mental health may be suitable as primary outcomes for a future confirmatory study. The data suggest that SBRT aimed at reducing the respiratory rate does not have a positive effect compared to regular SBRT. German Register of Clinical Trials (DRKS ID DRKS00028275).