View clinical trials related to Trisomy 21.
Filter by:The goal of this single-centre longitudinal observational study is to create reference values for diastolic function parameters in neonates born at 35 weeks' gestation or above, and to assess the influence of pre-defined antenatal, intrapartum, maternal, and neonatal factors on cardiac function. The main question it aims to answer are: - What are the normal reference ranges for parameters of diastolic cardiac function in neonates? - How are these influenced by maternal, intrapartum and neonatal factors? - Do the diastolic changes noted during the first two days of life persist into infancy? Participants will have four echocardiographic assessments in total: - Two during the first 48 hours of life (prior to discharge home) - Two during infancy (as an outpatient)
Since 2018, the Chicago Classification of Periodontal Diseases and Conditions, has listed Down syndrome (DS)/trisomy 21 (T21) as a systemic disease with periodontal implications. Numerous studies report an increased prevalence and severity of periodontitis in DS/T21 individuals under the age of 35. Approximately 35% of adolescents with DS show early signs of alveolar bone loss. However, very few studies have examined the role of immune deficiency in DS/T21 patients in the pathogenesis of periodontitis. Indeed, periodontitis induced by bacterial plaque is virtually non-existent in the paediatric population, leaving the field to systemically-induced periodontitis. The investigators hypothesize that specific neutrophil phenotypes in DS/T21 patients are key to explaining the rapid progression to periodontitis. Investigator's primary objective is to characterize the different oral and blood neutrophil subtypes in DS/T21 children with gingival inflammation. Investigator's secondary objective is to assess the involvement of different neutrophil subtypes in early periodontitis in children with DS/T21.
The investigator want to study the population of high risk (over 1/50) of Trisomy 21. According to french guidelines, these patients needs to have a invasive test (such as amniocentesis) but some patients prefer to have a Non Invasive Prenatal Test, with a potential lack of information.