Upper respiratory tract infection
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| Upper respiratory tract infection Classification and external resources | |
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| Conducting passages. | |
| ICD-10 | J00-06., J30-39. |
| ICD-9 | 465.9 |
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Overview
Upper respiratory infections, commonly referred to the acronym URI or URTI, is the illness caused by an acute infection which involves the upper respiratory tract: nose, sinuses, pharynx or larynx. In the United States, this represents approximately one billion acute upper respiratory illnesses annually.
Signs and symptoms
Acute upper respiratory tract infections includes rhinosinusitis (common cold), sinusitis, pharyngitis/tonsillitis, laryngitis and sometimes bronchitis. Symptoms of URI's commonly include congestion, cough, running nose, sore throat, fever, facial pressure and sneezing. Onset of the symptoms usually begins after 1-3 days after exposure to a microbial pathogen, most commonly a virus. The duration of the symptoms is typically 7 to 10 days but may persist longer.
It is important to mention that up to 15% of acute pharyngitis cases may be caused by bacteria, commonly Group A Strep ("Strep Throat"). Generally, patients with "Strep Throat" start with a sore throat as their first symptom and usually do not have runny nose or cough or sneezing.
Pain and pressure of the ear caused by a middle ear infection (Otitis media) and the reddening of they eye caused by Viral Conjunctivitis are often associated with upper respiratory infections.
Influenza (the flu) is a more systemic illness, which can also involve the upper respiratory tract, should be recognized as distinct from other causes of URI.
Treatment
Judicious use of antibiotics can decrease unnecessary adverse effects of antibiotics as well as out-of-pocket costs to the patient. But more important, decreased antibiotic usage will prevent development of drug resistant bacteria, which is now a growing problem in the world. International, as well as local US health agencies, have been strongly encouraging physicians to decrease the prescribing of antibiotics to treat common upper respiratory tract infections because antibiotic usage does not significantly reduce recovery time for these viral illnesses [3]
Some have advocated a delayed antibiotic approach to treating URIs which seeks to reduce the consumption of antibiotics while attempting to maintain patient satisfaction. Most studies show no difference in improvement of symptoms between those treated with antibiotics right away and those with delayed prescriptions.[1] Most studies also show no difference in patient satisfaction, patient complications, symptoms between delayed and no antibiotics. It should be noted that a strategy of "no antibiotics" results in even less antibiotic use than a strategy of "delayed antibiotics". Until more effective treatments are available to treat the common respiratory viruses responsible for the majority of cases, treatment of URIs with rest, increased fluids, and symptomatic care with over-the-counter medications will remain the treatment of choice. However, in certain higher risk patients with underlying lung disease, such as chronic obstructive pulmonary disease (COPD), evidence does exist to support the treatment of URIs with antibiotics to shorten the course of illness and decrease treatment failure.[1]
The use of Vitamin C in the prevention and treatment of upper respiratory infections has been suggested since the initial isolation of vitamin C in the 1930s. Several studies have failed to demonstrate that vitamin C supplementation reduces the incidence of colds in the normal healthy population, indicating that routine large dose prophylaxis with Vitamin C is not beneficial in widespread community usage. Some evidence exists to indicate that it could be justified in persons exposed to brief periods of severe physical exercise and/or cold environments. The evidence does not support the use of Vitamin C at the onset of colds as effective therapy.[1]
See also
References
Additional Resource
- Park, David J. "Evidence Based Approach to Upper Respiratory Infections." December 10, 2006. Touro University Nevada College of Osteopathic Medicine
External links
- The Flu and Cold: Tips on Prevention and Feeling Better
- Medicine Index - Upper Respiratory Tract Infection
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Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
