Paediatric anaesthesia
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Paediatric anaesthesia · Feb 2022
ReviewModes of ventilation for pediatric patients under anesthesia: A Pro/Con conversation.
The development of sophisticated modes of ventilation for pediatric patients undergoing anesthesia is ongoing; what remains a challenge for the pediatric anesthesiologist is thoughtful selection of the mode(s) of ventilation for a particular patient in the context of the surgical procedure and the goals of the anesthetic. This article provides some historical accounting of a variety of modes of ventilation, defines the terminology of modern ventilatory modes, and reviews in detail the benefits and pitfalls of the specific modes of ventilation and their applicability to the practice of pediatric anesthesiology. In an attempt to debate the Pros and Cons of different modes of ventilation, and to finally resolve the debate "spontaneous vs. controlled ventilation," we share with you a thoughtful conversation of the continuum of modes of ventilation and their applicability to our pediatric anesthesia population.
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Paediatric anaesthesia · Feb 2022
ReviewChallenges with pediatric anesthesia and intraoperative ventilation of the child in the resource-constrained setting.
The systemic challenges in providing safe anesthesia, including safe ventilation, to children in resource-constrained settings are many. For anesthesia providers caring for children, the lack of appropriate equipment, inadequate anesthesia workforce and deficiencies in postoperative care are especially difficult. The clinical decisions made by anesthesia providers around when and how to ventilate a child for surgery are influenced by all of these factors and can result in patient management which may vary significantly from that in a high-resource setting. This educational review considers the intraoperative ventilation of a small child in a resource-constrained setting and discusses specific challenges and context-sensitive solutions.
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Bronchopulmonary dysplasia is the most frequent adverse outcome of prematurity. Before implementation of antenatal steroids and surfactant therapy, bronchopulmonary dysplasia was mostly characterized by fibrotic, scarred, and hyper-inflated lungs due to pulmonary injury following mechanical ventilation and oxygen toxicity. With advances in neonatal medicine, this "old" bronchopulmonary dysplasia has changed to a "new" bronchopulmonary dysplasia characterized by an arrest in lung growth, leading to alveolar simplification and pulmonary vascular dysangiogenesis. ⋯ Medical treatment often includes diuretics, steroids, bronchodilators, or oxygen supplementation and in the presence of pulmonary hypertension medication to decrease the pulmonary vascular resistance. Perioperative anesthetic risk is increased in children with pulmonary hypertension. These patients might require additional diagnostic imaging and plans for increased resource allocation such as postoperative intensive care admission.
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Paediatric anaesthesia · Feb 2022
ReviewUnderstanding pediatric ventilation in the operative setting. Part I: Physical principles of monitoring in the modern anesthesia workstation.
The modern anesthesia workstation provides a wealth of information some of which is of particular interest when it comes to optimizing ventilation settings. This knowledge gains even more importance in the therapy of pediatric patients. ⋯ The purpose of this review is to outline the clinical impact, technological background, and reliability of the most relevant information measured and calculated by a modern anesthesia workstation. It aims at translating the technical knowledge into a more competent and vigilant application in the clinical setting.
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Extraordinary progress has been made during the past few decades in the development of anesthesia machines and ventilation techniques. With unprecedented precision and performance, modern machines for pediatric anesthesia can deliver appropriate mechanical ventilation for children and infants of all sizes and with ongoing respiratory diseases, ensuring very small volume delivery and compensating for circuit compliance. Along with highly accurate monitoring of the delivered ventilation, modern ventilators for pediatric anesthesia also have a broad choice of ventilation modalities, including synchronized and assisted ventilation modes, which were initially conceived for ventilation weaning in the intensive care setting. ⋯ The present report reviews the novel ventilation techniques used for children, discussing the advantages and pitfalls of the ventilation modalities available in modern anesthesia machines, as well as innovative ventilation modes currently under development or research. Several innovative strategies and devices are discussed. These novel modalities are likely to become part of the armamentarium of the pediatric anesthesiologist in the near future and are particularly relevant for challenging ventilation scenarios.