LARYNGITIS
Laryngitis,
an inflammation of the larynx, often occurs as a re-sult of voice abuse or
exposure to dust, chemicals, smoke, and other pollutants, or as part of an
upper respiratory tract infection.It also may be caused by isolated infection
involving only the vocal cords.
The
cause of infection is almost always a virus. Bacterial inva-sion may be
secondary. Laryngitis is usually associated with aller-gic rhinitis or
pharyngitis. The onset of infection may be associated with exposure to sudden
temperature changes, dietary deficien-cies, malnutrition, and an
immunosuppressed state. Laryngitis is common in the winter and is easily
transmitted.
Signs
of acute laryngitis include hoarseness or aphonia
(complete loss of voice) and severe cough. Chronic laryngitis is marked by
persistent hoarseness. Laryngitis may be a complication of upper respiratory
infections.
Management
of acute laryngitis includes resting the voice, avoid-ing smoking, resting, and
inhaling cool steam or an aerosol. If the laryngitis is part of a more
extensive respiratory infection due to a bacterial organism or if it is severe,
appropriate antibacterial therapy is instituted. The majority of patients
recover with con-servative treatment; however, laryngitis tends to be more
severe in elderly patients and may be complicated by pneumonia.
For
chronic laryngitis, the treatment includes resting the voice, eliminating any
primary respiratory tract infection, eliminat-ing smoking, and avoiding
second-hand smoke. Topical corti-costeroids, such as beclomethasone
dipropionate (Vanceril) inhalation, may also be used. These preparations have
no sys-temic or long-lasting effects and may reduce local inflammatory
reactions.
The
nurse instructs the patient to rest the voice and to maintain a well-humidified
environment. If laryngeal secretions are present during acute episodes,
expectorant agents are suggested, along with a daily fluid intake of 3 L to
thin secretions.
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