发育中肺脏的氧气与机械牵张:新生儿及小儿肺部疾病的危险因素
Oxygen and mechanical stretch in the developing lung: risk factors for neonatal and pediatric lung disease.
作者信息
Zhang Emily Y, Bartman Colleen M, Prakash Y S, Pabelick Christina M, Vogel Elizabeth R
机构信息
Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN, United States.
Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, United States.
出版信息
Front Med (Lausanne). 2023 Jun 19;10:1214108. doi: 10.3389/fmed.2023.1214108. eCollection 2023.
Chronic airway diseases, such as wheezing and asthma, remain significant sources of morbidity and mortality in the pediatric population. This is especially true for preterm infants who are impacted both by immature pulmonary development as well as disproportionate exposure to perinatal insults that may increase the risk of developing airway disease. Chronic pediatric airway disease is characterized by alterations in airway structure (remodeling) and function (increased airway hyperresponsiveness), similar to adult asthma. One of the most common perinatal risk factors for development of airway disease is respiratory support in the form of supplemental oxygen, mechanical ventilation, and/or CPAP. While clinical practice currently seeks to minimize oxygen exposure to decrease the risk of bronchopulmonary dysplasia (BPD), there is mounting evidence that lower levels of oxygen may carry risk for development of chronic airway, rather than alveolar disease. In addition, stretch exposure due to mechanical ventilation or CPAP may also play a role in development of chronic airway disease. Here, we summarize the current knowledge of the impact of perinatal oxygen and mechanical respiratory support on the development of chronic pediatric lung disease, with particular focus on pediatric airway disease. We further highlight mechanisms that could be explored as potential targets for novel therapies in the pediatric population.
慢性气道疾病,如喘息和哮喘,仍是儿科人群发病和死亡的重要原因。对于早产儿而言尤其如此,他们既受到肺发育不成熟的影响,又过度暴露于围产期不良因素中,这些因素可能增加患气道疾病的风险。慢性儿科气道疾病的特征是气道结构改变(重塑)和功能变化(气道高反应性增加),这与成人哮喘类似。气道疾病发展最常见的围产期危险因素之一是以补充氧气、机械通气和/或持续气道正压通气(CPAP)形式的呼吸支持。虽然目前临床实践试图尽量减少氧气暴露以降低支气管肺发育不良(BPD)的风险,但越来越多的证据表明,较低水平的氧气可能会增加患慢性气道疾病而非肺泡疾病的风险。此外,机械通气或CPAP引起的牵张暴露也可能在慢性气道疾病的发展中起作用。在此,我们总结了围产期氧气和机械呼吸支持对慢性儿科肺病发展影响的当前知识,特别关注儿科气道疾病。我们进一步强调了可作为儿科人群新疗法潜在靶点加以探索的机制。