On the stability of solution mapping for parametric generalized vector quasiequilibrium problems

AbstractIn this paper, we study the solution stability for a class of parametric generalized vector quasiequilibrium problems. By virtue of the parametric gap function, we obtain a sufficient and necessary condition for the Hausdorff lower semicontinuity of the solution mapping to the parametric generalized vector quasiequilibrium problem. The results presented in this paper generalize and improve some main results of Chen et al. (2010) [34], and Zhong and Huang (2011) [35]

Association of Arterial Hyperoxia With Outcomes in Critically Ill Children: A Systematic Review and Meta-analysis

Importance: Oxygen supplementation is a cornerstone treatment in pediatric critical care. Accumulating evidence suggests that overzealous use of oxygen, leading to hyperoxia, is associated with worse outcomes compared with patients with normoxia. Objectives: To evaluate the association of arterial hyperoxia with clinical outcome in critically ill children among studies using varied definitions of hyperoxia. Data Sources: A systematic search of EMBASE, MEDLINE, Cochrane Library, and ClinicalTrials.gov from inception to February 1, 2021, was conducted. Study Selection: Clinical trials or observational studies of children admitted to the pediatric intensive care unit that examined hyperoxia, by any definition, and described at least 1 outcome of interest. No language restrictions were applied. Data Extraction and Synthesis: The Meta-analysis of Observational Studies in Epidemiology guideline and Newcastle-Ottawa Scale for study quality assessment were used. The review process was performed independently by 2 reviewers. Data were pooled with a random-effects model. Main Outcomes and Measures: The primary outcome was 28-day mortality; this time was converted to mortality at the longest follow-up owing to insufficient studies reporting the initial primary outcome. Secondary outcomes included length of stay, ventilator-related outcomes, extracorporeal organ support, and functional performance. Results: In this systematic review, 16 studies (27 555 patients) were included. All, except 1 randomized clinical pilot trial, were observational cohort studies. Study populations included were post-cardiac arrest (n = 6), traumatic brain injury (n = 1), extracorporeal membrane oxygenation (n = 2), and general critical care (n = 7). Definitions and assessment of hyperoxia differed among included studies. Partial pressure of arterial oxygen was most frequently used to define hyperoxia and mainly by categorical cutoff. In total, 11 studies (23 204 patients) were pooled for meta-analysis. Hyperoxia, by any definition, showed an odds ratio of 1.59 (95% CI, 1.00-2.51; after Hartung-Knapp adjustment, 95% CI, 1.05-2.38) for mortality with substantial between-study heterogeneity (I2 = 92%). This association was also found in less heterogeneous subsets. A signal of harm was observed at higher thresholds of arterial oxygen levels when grouped by definition of hyperoxia. Secondary outcomes were inadequate for meta-analysis. Conclusions and Relevance: These results suggest that, despite methodologic limitations of the studies, hyperoxia is associated with mortality in critically ill children. This finding identifies the further need for prospective observational studies and importance to address the clinical implications of hyperoxia in critically ill children

Seroepidemiology of Human Bocavirus Infection in Jamaica

Human bocavirus (HBoV) is a newly identified human parvovirus. HBoV is associated with upper and lower respiratory tract infections and gastroenteritis in children. Little is known about the seroepidemiology of HBoV in populations in the Caribbean.In a cross-sectional study conducted at the University Hospital of the West Indies in Kingston, Jamaica, 287 blood samples were collected from pediatric patients and tested for the presence of HBoV-specific antibody using a virus-like-particle based enzyme-linked immunosorbent assay (ELISA).HBoV-specific antibodies were found to be present in 220/287 (76.7%) of samples collected from the pediatric population. Seroprevalence of HBoV was highest in those ≥2 years old. The seroepidemiological profile suggests that most children are exposed to HBoV during the first two years of life in Jamaica.HBoV infection is common in children in Jamaica. HBoV seroprevalence rates in the Caribbean are similar to those previously reported in other areas of the world

INTRACRANIAL TUBERCULOSIS IN THE NETHERLANDS - 4 PEDIATRIC CASES

Since 1987 a resurgence of tuberculosis is occurring in the Netherlands in analogy to the situation in other industrialised countries. So far this has not been associated with an increased incidence of tuberculous meningitis, which is still a rare complication of the disease. Four cases of intracranial tuberculosis were recently diagnosed in our hospital. All children were from middle-class Dutch families with no identified risk for tuberculosis. An extensive contact identification search could identify a contact in two patients. Two children were in an advanced stage of disease before diagnosis. Skin tests were repeatedly negative in al cases which delayed treatment in two cases for almost 2 weeks. One patient developing a cerebral tuberculous focus during therapy responded well to a second course of corticosteroids. Three children developed severe neurological sequelae. Conclusion This report illustrates that suspicion of intracranial tuberculosis is warranted in the case of an ill-defined inflammatory neurological syndrome

Physical functioning in pediatric intensive care survivors and its associated determinants: A scoping review protocol

Objective: The objective of this scoping review is threefold: (1) to describe outcomes of and determinants for physical functioning in pediatric intensive care unit (PICU) survivors evaluated during and/or after their PICU stay, (2) to provide an overview how physical functioning and its associated determinants in this population are reported, measured and classified in accordance with the International classification of Functioning, Disability and Health-Children and Youth framework (ICF-CY) components and (3) to synthesize key gaps in knowledge and research and clinical recommendations related to our review questions. Introduction: Optimal physical functioning in children is of major importance in their developmental trajectories and for the prevention and recovery of health problems across lifespan. PICU children are at high risk of poor physical functioning during and after critical illness. A recent overview of the literature, concerning evaluation of physical functioning in PICU survivors according to the ICF-CY components, is lacking. Inclusion criteria: This review includes empirical studies reporting outcomes and determinants of physical functioning in PICU survivors evaluated during and/or after PICU stay. All English language studies reporting empirical data will be included with no restrictions set on the types of study designs used. Methods: This review will be conducted in accordance with the PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews) statement. To locate studies eligible for inclusion, the electronic databases Pubmed, EMBASE, CINAHL and Cochrane Library will be searched from the earliest records to October 2019. Study selection will be performed by two independent reviewers. Covidence software will be used to screen titles and abstracts as well as the full-text of included studies. Data extraction will be conducted using a customized form. The extracted data will be presented in diagrammatic or tabular form with an accompanying narrative summary