Respiratory care
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The use of controlled mechanical ventilation results in a major reduction of diaphragmatic contractile force together with atrophy of diaphragm muscle fibers, which is a condition known as ventilator-induced diaphragmatic dysfunction. Ventilator-induced diaphragmatic dysfunction is one of the major contributors to weaning difficulties and even increased mortality. This review summarizes the current data on the pathogenesis and diagnosis of ventilator-induced diaphragmatic dysfunction, and it outlines the use of ultrasonography for diaphragm evaluation. In addition, current pharmacologic agents used to mitigate ventilator-induced diaphragmatic dysfunction are described, with a particular emphasis on the therapeutic potential of theophylline in patients with ventilator-induced diaphragmatic dysfunction-associated weaning difficulties.
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The Centers for Disease Control and Prevention recently released a surveillance definition for respiratory complications in ventilated patients, ventilator-associated events (VAEs), to replace ventilator-associated pneumonia (VAP). VAEs consist of ventilator-associated conditions (VAC), infection-related ventilator-associated complications (IVAC), and possible VAP. A duration of mechanical ventilation of at least 4 d is required to diagnose VAE. However, the observed duration of mechanical ventilation was < 4 d in many previous studies. We evaluated the impact of VAEs on clinical outcomes in critically ill subjects who required mechanical ventilation for ≥ 4 d. ⋯ We found that a VAE was related to hospital mortality in critically ill subjects with prolonged mechanical ventilation, and that VAP was not.
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Randomized Controlled Trial
Physical Activity Counseling for Children With Cystic Fibrosis.
Physical activity is recommended as a component of the cystic fibrosis (CF) treatment regimen. However, to date, there is limited research examining the effects of behavioral counseling interventions aimed at increasing physical activity. The aim of this study was to assess the feasibility of a theoretically informed, parent-mediated counseling intervention in increasing habitual physical activity and quality of life among children and youth with CF. ⋯ The findings suggest that counseling is feasible for the CF community. An appropriately powered randomized controlled trial is required in the future to investigate the utility of counseling as a means to enhance quality of life and physical activity behavior.
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Tracheostomy facilitates ambulatory extracorporeal membrane oxygenation (ECMO) as a bridge to recovery or lung transplantation in patients with respiratory failure, yet data on this procedure in this population are lacking. This report describes a series of pediatric ICU patients who had a bedside tracheostomy performed while being supported on ECMO and examines the potential impact of this procedure on active rehabilitation and sedation requirements. ⋯ Bedside tracheostomy can feasibly be performed on pediatric patients being supported with ECMO as a way to improve mobility, promote ambulation, and decrease sedation. Timing and ideal surgical approach require further study to fully maximize benefits and minimize risks.
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COPD is common, and inhaled medications can reduce the risk of exacerbations. Incorrect inhaler use is also common and may lead to worse symptoms and increased exacerbations. We examined whether inhaler training could be delivered using Internet-based home videoconferencing and its effect on inhaler technique, self-efficacy, quality of life, and adherence. ⋯ Inhaler training using teach-to-goal methodology delivered by home videoconference is a promising means to provide training to patients with COPD that can improve technique, quality of life, self-efficacy, and adherence.