Paediatric anaesthesia
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Various developmental aspects of respiratory physiology put infants and young children at an increased risk of respiratory failure, which is associated with a higher rate of critical incidents during anesthesia. The immaturity of control of breathing in infants is reflected by prolonged central apneas and periodic breathing, and an increased risk of apneas after anesthesia. ⋯ The increased chest wall compliance and reduced gas exchange surface of the lungs reduce the pulmonary oxygen reserve vis-à-vis a higher metabolic oxygen demand, which causes more rapid oxygen desaturation when ventilation is compromised. This review describes the various developmental aspects of respiratory physiology and summarizes anesthetic implications.
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Paediatric anaesthesia · Feb 2022
ReviewAtelectasis and lung recruitment in pediatric anesthesia: An educational review.
General anesthesia is associated with development of pulmonary atelectasis. Children are more vulnerable to the development and adverse effects of atelectasis. ⋯ We discuss the clinical significance of atelectasis, the use and value of recruitment maneuvers, and other techniques available to minimize lung collapse. This review demonstrates the value of a recruitment maneuver, maintaining positive end-expiratory pressure (PEEP) until extubation and lowering FiO2 where possible in the daily practice of the pediatric anesthetist.
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Paediatric anaesthesia · Feb 2022
ReviewChest trauma in children-what an anesthesiologist should know.
Injury is the leading cause of death in children, with chest trauma accounting for 25% of this mortality. In addition, these patients often present with multiple system injuries, which require simultaneous management. These concurrent injuries can lead to challenges when prioritizing tasks in the resuscitation room and during anesthetic management. ⋯ Therefore, a clear communication plan with careful monitoring and vigilance is needed for intubation and ventilation in these children. These injuries also require specific strategies to prevent barotrauma which could lead to complications such as respiratory failure, pneumonia, sepsis, and acute respiratory distress syndrome. This educational review aims to guide clinicians managing pediatric chest trauma through some of the critical decision-making regarding intubation, ventilation, and subsequent management of injuries.
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Paediatric anaesthesia · Feb 2022
ReviewNoninvasive ventilation in children: A review for the pediatric anesthesiologist.
Preserving adequate respiratory function is essential in the perioperative period. Mechanical ventilation with endotracheal intubation is widely used for this purpose. In select patients, noninvasive ventilation (NIV) may be an alternative to invasive ventilation or may complement respiratory management. ⋯ HFNO delivers humidified and heated oxygen at rates between 2 and 70 L/min using specific nasal cannulas, and flows are determined by the patient's weight and clinical needs. HFNO can be useful as a method for preoxygenation in infants and children by prolonging apnea time before desaturation, yet in children with decreased minute ventilation or apnea HFNO does not improve alveolar gas exchange. Clinicians experienced with these devices, such as pediatric intensivists and pulmonary medicine specialists, can be useful resources for the pediatric anesthesiologist caring for complex patients on NIV.
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Paediatric anaesthesia · Feb 2022
ReviewRespiratory prehabilitation in pediatric anesthesia in children with muscular and neurologic disease.
Children with neuromuscular, chronic neurologic, and chest wall diseases are at increased risk of postoperative respiratory complications including atelectasis, pneumonia, and respiratory failure with the possible need for reintubation or even tracheostomy. These complications negatively impact patient outcomes, including increased healthcare resource utilization and increased surgical mortality. In these children, the existing respiratory reserve is often inadequate to withstand the stresses brought on during anesthesia and surgery. ⋯ Furthermore, such an evaluation will help identify children who may require a postoperative extubation plan tailored to neuromuscular diseases. Such strategies may include avoidance of pre-extubation lung decruitment by precluding continuous positive airway pressure trials, aggressively weaning to room air and directly extubating to non-invasive ventilation with a high inspiratory to expiratory pressure differential of at least 10 cm H20. Children with cerebral palsy and other neurodegenerative or neurodevelopmental disorders are a more heterogeneous group of children who may share some operative risk factors with children with neuromuscular disease; they may also be at risk of sleep-disordered breathing, may also require non-invasive ventilation or mechanical insufflation-exsufflation, and may have associated chronic lung disease from aspirations that may require perioperative treatment.