出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/02/06 16:43:36」(JST)
Post-nasal drip | |
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Classification and external resources | |
ICD-10 | R09.8 |
ICD-9 | 784.91 |
eMedicine | ent/338 |
Post-nasal drip (PND, also termed upper airway cough syndrome, UACS, or post nasal drip syndrome, PNDS) occurs when excessive mucus is produced by the nasal mucosa. The excess mucus accumulates in the throat or back of the nose. It is caused by rhinitis, sinusitis, gastroesophageal reflux disease (GERD), or by a disorder of swallowing (such as an esophageal motility disorder). It is frequently caused by an allergy, which may be seasonal or persistent throughout the year.[medical citation needed]
However, other researchers argue that mucus dripping down the back of the throat from the nasal cavity is a normal physiologic process that occurs in healthy individuals.[1] Post-nasal drip syndrome as a concept has been challenged due to a lack of an accepted definition, a lack of any pathologic tissue changes and no available biochemical tests. The phrase has been described as a "pseudo-syndrome" (i.e. not a real medical condition) which serves as a catch-all, waste-basket phrase that is unhelpful.[1]
PND is suggested to be a cause of extra-oral halitosis, especially when a sinus infection is also present. Acid reflux or heartburn is believed to aggravate and in some cases cause post-nasal drip.[2]
This section does not cite any references or sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. (June 2013) |
Individuals may be diagnosed as suffering from post-nasal drip if they suffer from the following symptoms:
This section does not cite any references or sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. (June 2013) |
First and foremost, as the causes are manifold, a removal of those causes should be targeted. Treatment may include antibiotics, decongestants, nasal irrigation, sinus massage, acid control medication, allergy medication, and minor surgery. Bulb syringes, squirt bottles, pulsatile nasal irrigators or neti pots are often used for nasal irrigation. Allergy medications include antihistamines, decongestants, nasal steroids alone or in combination. Allergy injections may be used for long-term relief when allergy is the cause. Oral steroids may be prescribed for short-term use in some situations.
According to the evidence-based cough guidelines published by the American College of Chest Physicians in the January 2006 issue of Chest, a first-generation antihistamine should be employed as first-line therapy to treat post-nasal drip.[medical citation needed]
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リンク元 | 「上気道咳症候群」 |
関連記事 | 「upper」「airway」「syndrome」 |
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