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If the foreign body does not cause a large degree of obstruction, patients may present with chronic cough, asymmetrical breath sounds on exam, or recurrent pneumonia of a specific lung lobe. [2] If the aspiration occurred weeks or even months ago, the object may lead to an obstructive pneumonia or even a lung abscess.
Aspiration pneumonitis (Mendelson's syndrome) is chemical injury of lung tissue secondary to aspiration of regurtitated gastric acid. [15] The syndrome was first described among pregnant patients [16] after the administration of anesthesia, though it can occur in any scenario where gastric contents are aspirated. [17]
Subsequently, the word was used in Frank Scully's puzzle book Bedside Manna, after which time, members of the N.P.L. campaigned to include the word in major dictionaries. [ 9 ] [ 10 ] This 45-letter word, referred to as "p45", [ 11 ] first appeared in the 1939 supplement to the Merriam-Webster New International Dictionary, Second Edition .
Chronic inflammation of the lungs is a key feature in aspiration pneumonia in elderly nursing home residents and presents as a sporadic fever (one day per week for several months). Radiological review shows chronic inflammation in the consolidated lung tissue, linking chronic micro-aspiration and chronic lung inflammation.
For most infections, the immune response of the body is enough to control and apprehend the infection within a couple days, but if the tissue and the cells can't fight off the infection, the creation of pus will begin to form in the lungs which then hardens into lung abscess or suppurative pneumonitis. [6]
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Depending on the type and amount of irritant gas inhaled, victims can experience symptoms ranging from minor respiratory discomfort to acute airway and lung injury and even death. A common response cascade to a variety of irritant gases includes inflammation , edema and epithelial sloughing , which if left untreated can result in scar formation ...
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