Articles: mechanical-ventilation.
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Automode is a feature on Servo ventilators that automatically switches between mandatory and spontaneous breaths. Spontaneous breaths suppress mandatory breaths until apnea. The period from the last spontaneous breath to the first mandatory breath is automatically adjusted by a calculated apnea time limit based on a maximum apnea time setting, the mandatory breathing frequency setting, and the spontaneous breath count. The purpose of this study was to validate the apnea time algorithm by using simulated mechanical ventilation. ⋯ The measured apnea time for simulated ventilation settings was within 2% of calculated times. Automode allowed a spontaneous frequency lower than expected based on the mandatory frequency.
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Pediatr Crit Care Me · Dec 2023
Multicenter StudyVariation in Early Pediatric Intensive Care Management Strategies and Duration of Invasive Mechanical Ventilation for Acute Viral Bronchiolitis in the United Kingdom: A Retrospective Multicenter Cohort Study.
Management of mechanically ventilated patients with bronchiolitis is not standardized and duration of mechanical ventilation has been shown to vary widely between centers. The aim of this study was to examine practice in a large number of U.K. PICUs with a view to identify if early management choices relating to fluid prescription, sedative agent use, and endotracheal tube (ETT) placement were associated with differences in duration of invasive mechanical ventilation (IMV). ⋯ Early management strategies for bronchiolitis were associated with the duration of IMV across U.K. centers after adjustment for confounders. Future work should prospectively assess the impact of fluid restriction, route of endotracheal intubation, and alpha-2 agonist use on duration of IMV in infants with bronchiolitis, with the aim of reducing seasonal bed pressure.
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Pediatr Crit Care Me · Dec 2023
Observational StudyNonresuscitation Fluid Accumulation and Outcomes After Pediatric Cardiac Surgery: Single-Center Retrospective Cohort Study.
Postoperative patients after congenital cardiac surgery are at high risk of fluid overload (FO), which is known to be associated with poor outcomes. "Fluid creep," or nonresuscitation IV fluid in excess of maintenance requirement, is recognized as a modifiable factor associated with FO in the general PICU population, but has not been studied in congenital cardiac surgery patients. Our objective was to characterize fluid administration after congenital cardiac surgery, quantify fluid creep, and the association between fluid creep, FO, and outcome. ⋯ Fluid creep is present on most postoperative days for pediatric congenital cardiac surgery patients, and fluid creep is associated with higher-risk procedures. Fluid creep early in the postoperative PICU stay is associated with greater odds of FO, mortality, length of mechanical ventilation, and PICU length of stay. Fluid creep may be under-recognized in this population and thus present a modifiable target for intervention.
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Randomized Controlled Trial
Flow-controlled versus pressure-controlled ventilation in cardiac surgery with cardiopulmonary bypass - A single-center, prospective, randomized, controlled trial.
Multifactorial comparison of flow-controlled ventilation (FCV) to standard of pressure-controlled ventilation (PCV) in terms of oxygenation in cardiac surgery patients after chest closure. ⋯ In patients undergoing on-pump, cardiac surgery individualized FCV significantly improved oxygenation and lung tissue aeration compared to PCV. In addition, carbon dioxide removal was accomplished at a lower minute volume leading to reduced applied mechanical power.