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Pulmonary surfactant thus greatly reduces surface tension, increasing compliance allowing the lung to inflate much more easily, thereby reducing the work of breathing. It reduces the pressure difference needed to allow the lung to inflate. The lung's compliance, and ventilation decrease when lung tissue becomes diseased and fibrotic. [3]
Testing for surfactant metabolism dysfunction should be considered for newborns with diffuse lung disease or hypoxemia, especially in families with history of neonatal lung diseases or ILD in adults. Neonatal and adult onset lung diseases with unfound causes should also be tested early for surfactant dysfunction. [3]
Surfactant therapy is the medical administration of pulmonary surfactant that is derived from outside of the body. Pulmonary surfactant is a soap-like chemical synthesized by type II alveolar pneumocytes and is of various lipids (80% phospholipids, 5-10% cholesterol, and ∼10% surfactant-associated proteins). This biological fluid reduces ...
Pulmonary surfactant may be isolated from the lungs of cows or pigs or made artificially. [1] [3] [4] Pulmonary surfactant was discovered in the 1950s and a manufactured version was approved for medical use in the United States in 1990. [3] It is on the World Health Organization's List of Essential Medicines. [5]
Whole lung lavage (WLL), also called lung washing, is a medical procedure in which the patient's lungs are washed with saline (salt water) by filling and draining repeatedly. It is used to treat pulmonary alveolar proteinosis , in which excess lung surfactant proteins prevent the patient from breathing.
Diffuse alveolar damage (DAD) is a histologic term used to describe specific changes that occur to the structure of the lungs during injury or disease. Most often DAD is described in association with the early stages of acute respiratory distress syndrome ( ARDS ). [ 1 ]
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