TY - CHAP M1 - Book, Section TI - Aspiration Syndromes A1 - Daines, Cori L. A2 - Kline, Mark W. PY - 2018 T2 - Rudolph's Pediatrics, 23e AB - Pulmonary aspiration is defined as the passage of foreign material or fluid into the lungs during inspiration. Although food or gastric contents are considered the main culprits, anything from saliva to plastic toys can be aspirated. Aspiration of saliva and gastric contents can occur in normal individuals silently, especially at night. The degree of pathology seen in aspiration syndromes relates to the volume, the type and causticity, and the chronicity of material aspirated. Pathologic aspiration events can be divided into 2 main categories: acute and chronic. The acute events include large-volume aspiration of gastric contents or other fluid, hydrocarbon aspiration, near drowning, and foreign body aspiration. The chronic events include recurrent, small-volume aspiration of saliva, food, upper airway secretions, or gastroesophageal reflux disease (GERD). Large-volume aspiration events (with the exception of many cases of foreign body aspiration, discussed in more detail in Chapter 118) are usually witnessed and can be addressed directly. Recurrent small-volume aspirations often are silent and more difficult to diagnose and manage. It is important to recognize the risk factors to properly diagnose aspiration (Table 504-1). SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/19 UR - accesspediatrics.mhmedical.com/content.aspx?aid=1182916585 ER -