Objective Children with long-term tracheostomies are at higher risk of complications. This study aims to describe the epidemiology, outcomes, and factors associated with successful decannulation in children undergoing tracheostomy. Study Design Case series with chart review. Setting Tertiary hospital. Subjects and Methods A retrospective analysis was conducted on pediatric tracheostomies performed from 2006 to 2016. Demographics, preexisting comorbidities, indications for tracheostomy, and pretracheostomy ventilatory requirements were collected. A multivariate regression model with covariates of age, failure to thrive (FTT), and comorbidities was used to identify factors associated with successful decannulation. Secondary outcomes were ventilation and oxygen requirements at hospital discharge, hospital and intensive care unit length of stay, and complications. Results In total, 105 patients received a tracheostomy at a median age of 8.0 months (interquartile range, 2.0-45.0). The most common indication was anatomic airway obstruction (55 of 105, 52.5%). Forty-four (41.9%) patients had preexisting FTT. In-hospital mortality was 14 of 105 (13.3%). None were directly related to tracheostomy. At discharge, 40 of 91 (44.0%) and 12 of 91 (13.2%) required home mechanical ventilation and supplemental oxygen, respectively. Forty-one (39%) patients underwent successful decannulation at a median 408 days (interquartile range, 170-1153) posttracheostomy. On adjusted analysis, unsuccessful decannulation was more common in patients with FTT and neurologic comorbidities. Postoperative complications were more common in younger patients and those with a longer time to decannulation. Conclusion Neurologic comorbidities and FTT were risk factors for unsuccessful decannulation after pediatric tracheostomy. Nutritional interventions may have a role in improving long-term outcomes following pediatric tracheostomies and should be investigated in future studies.
The methyl-CpG-binding protein 2 gene (MECP2) on the X chromosome encodes an essential epigenetic regulator in human postnatal brain development. Increased dosage of MECP2 causes a severe syndromic form of intellectual disability, the MECP2 duplication syndrome. Males with this syndrome have a progressive neurological disorder, severe to profound intellectual disability, epilepsy and recurrent respiratory infections. We report three cases with copy number gain in Xq28 involving the MECP2 gene. The gains were detected by chromosomal microarray analysis and ranged in size from 300 kb to 4.96 Mb. The three boys were aged between 3 and 16 years old. All three had development delay and no speech. In addition, one patient was diagnosed with Lennox-Gastaut syndrome and another had a Dandy Walker variant. Their clinical features were compared with other reported cases. We concluded that all three patients' clinical features were due to the Xq28 duplication, which confirmed the utility of chromosomal microarray analysis as a first-tier test in patients with unexplained intellectual disability. With a specific genetic diagnosis, we were able to provide appropriate anticipatory guidance for these patients and their families.
Children with chronic critical illness (CCI) are hypothesized to be a high-risk patient population with persistent multiple organ dysfunction and functional morbidities resulting in recurrent or prolonged critical care; however, it is unclear how CCI should be defined. The aim of this scoping review was to evaluate the existing literature for case definitions of pediatric CCI and case definitions of prolonged PICU admission and to explore the methodologies used to derive these definitions.DATA SOURCES: Four electronic databases (Ovid Medline, Embase, CINAHL, and Web of Science) from inception to March 3, 2021. STUDY SELECTION:We included studies that provided a specific case definition for CCI or prolonged PICU admission. Crowdsourcing was used to screen citations independently and in duplicate. A machine-learning algorithm was developed and validated using 6,284 citations assessed in duplicate by trained crowd reviewers. A hybrid of crowdsourcing and machine-learning methods was used to complete the remaining citation screening. DATA EXTRACTION:We extracted details of case definitions, study demographics, participant characteristics, and outcomes assessed.DATA SYNTHESIS: Sixty-seven studies were included. Twelve studies (18%) provided a definition for CCI that included concepts of PICU length of stay (n = 12), medical complexity or chronic conditions (n = 9), recurrent admissions (n = 9), technology dependence (n = 5), and uncertain prognosis (n = 1). Definitions were commonly referenced from another source (n = 6) or opinion-based (n = 5). The remaining 55 studies (82%) provided a definition for prolonged PICU admission, most frequently greater than or equal to 14 (n = 11) or greater than or equal to 28 days (n = 10). Most of these definitions were derived by investigator opinion (n = 24) or statistical method (n = 18). CONCLUSIONS: Pediatric CCI has been variably defined with regard to the concepts of patient complexity and chronicity of critical illness. A consensus definition is needed to advance this emerging and important area of pediatric critical care research.
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