Publications by authors named "Mara L Leimanis-Laurens"

Background/objectives: Multiple independent variables were analyzed to determine total nutritional intake (caloric and protein), while reviewing vasoactive inotrope scores (VISs).

Methods: Retrospective data were collected for nutritional intake (N = 64), daily VISs, extracorporeal membrane oxygenation (ECMO) complications, delays in nutritional intake (>48 h), reason for delay, and interruptions in nutrition support.

Results: VISs and ECMO characteristics analyzed by box-whisker plots demonstrated that ECMO complications prior to 24 h, cardiac arrest 24 h prior to ECMO, pediatric ECMO patients, venoarterial ECMO type, having a cardiac ECMO indication, and ECMO centrifugal pump had higher VISs.

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Objective: To evaluate social drivers of health and how they impact pediatric oncology patients' clinical outcomes during pediatric intensive care unit (PICU) admission via correlation with patient ZIP codes.

Methods: Demographic, clinical, and outcome variables from Virtual Pediatric Systems®, LLC for oncology patients (2009-2021) in California PICUs (excluding postoperative) using 3-digit ZIP Codes with social drivers of health variables linguistic isolation, poverty, race/ethnicity, and education abstracted from American Community Survey data for 3-digit ZIP Codes using the Environmental Protection Agency's EJScreen tool. Outcomes of length of stay (LOS), mortality, acuity scores, were compared with social variables.

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Nutrition in pediatric populations who require life-saving extracorporeal membrane oxygenation (ECMO) remains a debate. We sought to identify if nutritional needs were met in a patient cohort. A retrospective chart review of patients (N = 64) requiring ECMO at Helen DeVos Children's Hospital between 2018 and 2022 was evaluated for demographics, daily nutritional data, laboratory values, ECMO complications, and outcome data, with primary outcome measures of percent protein and percent caloric intake.

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Background: The majority of childhood deaths occur in low- and middle-income countries (LMICs). Many of these deaths are avoidable with basic critical care interventions. Quantifying the burden of pediatric critical illness in LMICs is essential for targeting interventions to reduce childhood mortality.

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A large percentage of infants develop viral bronchiolitis needing medical intervention and often develop further airway disease such as asthma. To characterize metabolic perturbations in acute respiratory syncytial viral (RSV) bronchiolitis, we compared metabolomic profiles of moderate and severe RSV patients versus sedation controls. RSV patients were classified as moderate or severe based on the need for invasive mechanical ventilation.

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The feasibility of gastrointestinal (GI) microbiome work in a pediatric intensive care unit (PICU) to determine the GI microbiota composition of infants as compared to control infants from the same hospital was investigated. In a single-site observational study at an urban quaternary care children's hospital in Western Michigan, subjects less than 6 months of age, admitted to the PICU with severe respiratory syncytial virus (RSV) bronchiolitis, were compared to similarly aged control subjects undergoing procedural sedation in the outpatient department. GI microbiome samples were collected at admission ( = 20) and 72 h ( = 19) or at time of sedation ( = 10).

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Lipids are molecules involved in metabolism and inflammation. This study investigates the plasma lipidome for markers of severity and nutritional status in critically ill children. Children with multi-organ dysfunction syndrome (MODS) ( = 24) are analyzed at three time-points and cross-referenced to sedation controls ( = 4) for a total of = 28.

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We examined preadmission diet and zip code in infants with severe respiratory illness in the pediatric critical care unit. Patients aged 0 to 5 months admitted to the Helen DeVos Children's Hospital from January 2011 to May 2017 (  = 187), as exclusively formula, exclusively breastfed or mixed diet were included. Formula-fed infants (  = 88; 47%) clustered to zip codes with lower median incomes (<0.

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Metabolites are generated from exogenous sources such as diet. This scoping review will summarize nascent metabolite literature and discriminating metabolites for formula vs. human- milk-fed infants.

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