Detailed Information on Nasal Polyposis
December 7, 2009 by admin
Filed under Diseases And Conditions
Nasal polyps are the most common tumors of the nasal cavity. Nasal polyposis can impair a person’s quality of life more than perennial allergic rhinitis. Nasal polyps are soft, jelly-like overgrowths of the lining of the sinuses. They look like grapes on the end of a stalk. Large polyps can bloc the nose and increase the risk of sinusitis. They may be yellowish, grey or pink in colour. They are common and are not cancerous. Nasal polyposis results from chronic inflammation of the nasal and sinus mucous membranes. Chronic inflammation causes a reactive hyperplasia of the intranasal mucosal membrane, which results in the formation of polyps.
Nasal polyps can vary significantly in size. There may be only one but sometimes several develop like a ’small bunch of grapes’ on a stem. Polyps usually affect both nostrils. Nasal polyps can vary greatly in size. There may be only one but sometimes several grow like a ’small bunch of grapes’ on a stem. The cause of the inflammation is certain conditions make nose inflammation and polyps more likely. These include: asthma, allergy to aspirin, cystic fibrosis, and some rare conditions of the nose. Nasal polyps can occur along with many other respiratory diseases, such as allergic rhinitis, chronic sinusitis, asthma, and aspirin allergy.
Nasal polyps also occur in a majority of people with Churg-Strauss syndrome, a rare disease that inflames the blood vessels (vasculitis). Nasal polyps occur in around 1 in 200 people. It appears that nasal polyps are more common in people with non-allergic rhinitis and non-allergic asthma, rather than allergic types of these conditions. Nasal polyps can affect anyone. However, most cases occur in people over the age of 40 years. They are four times more common in men than in women. In general, women are more likely to have nasal polyps than are men. Nasal polyps are uncommon in children.
Medications are the most common treatment for nasal polyps. Surgery may be needed to eliminate larger growths. Topical nasal steroid sprays, such as Flonase and Nasonex, can help decrease the size of nasal polyps and prevent polyps from growing back after surgery. Use allergy shots in an attempt to treat or stop nasal polyps from growing back after surgery. Intranasal corticosteroid sprays reduce the growth of small intranasal polyps are most effective in the postoperative period. Prevention is better than cure. Avoid over-the-counter saline sprays that contain additives, such as benzalkonium, which can actually inflame the mucous lining of your nose.
Managing Allergies During Pregnancy
Rhinitis during pregnancy can be due to allergic rhinitis, sinusitis, or non-allergic rhinitis. If the woman has had allergic rhinitis prior to pregnancy, this could worsen, stay the same, or even improve. This change in symptoms may be dependent upon many factors, including the presence of seasonal allergens and increase in pregnancy hormones.
Non-allergic rhinitis in pregnancy may also be due to an increase in pregnancy hormones, leading to nasal congestion, runny nose and post nasal drip. This is called “rhinitis of pregnancy”. The symptoms may mimic allergies, but since they are non-allergic in nature, do not respond to anti-histamines.
The pregnant woman with rhinitis may be concerned about the safety of medications during pregnancy, and therefore avoid taking medications.
If avoidance of allergic triggers is not possible or successful, medications may be needed to control symptoms.
Diagnosis of Allergic Rhinitis During Pregnancy
Allergy testing includes skin testing or blood tests, called a RAST. In general, allergy skin testing is not done during pregnancy, given the small chance of anaphylaxis which may occur. Anaphylaxis during pregnancy, if severe, could result in a decrease in blood and oxygen to the uterus, possibly harming the fetus. Therefore, allergy testing is usually deferred during pregnancy, although a RAST would be a safe alternative if the results are needed during pregnancy.
Safety of Allergy Medications During Pregnancy
According to the Food and Drug Administration (FDA), no drugs are considered completely safe in pregnancy. This is because no pregnant woman would want to sign up for a medication safety study while she is pregnant. Therefore, the FDA has assigned risk categories to medications based on use in pregnancy.
Pregnancy category “A” medications are medications in which there are good studies in pregnant women showing the safety of the medication to the baby in the first trimester. There are very few medications in this category, and no asthma medications.
Category “B” medications show good safety studies in pregnant animals but there are no human studies available.
Pregnancy category “C” medications may result in adverse effects on the fetus when studied in pregnant animals, but the benefits of these drugs may out weight the potential risks in humans.
Category “D” medications show clear risk to the fetus, but there may be instances in which the benefits outweigh the risks in humans. And finally, category “X” medications show clear evidence of birth defects in animals and/or human studies and should not be used in pregnancy.
Before any medication is taken during pregnancy, the doctor and patient must have a risk/benefit discussion. This means that the benefits of the medication should be weighed against the risks – and the medication should only be taken if the benefits outweigh the risks.
Treatment of Rhinitis During Pregnancy
Nasal saline. Rhinitis of pregnancy tends not to respond to anti-histamines or nasal sprays. This condition seems to respond temporarily to nasal saline (salt water), which is safe to use during pregnancy (it is not actually a drug). Nasal saline is available over the counter, is inexpensive, and can be used as often as needed. Generally 3 to 6 sprays are placed in each nostril, leaving the saline in the nose for up to 30 seconds, and then blowing the nose.
Anti-histamines. Older anti-histamines, such as chlorpheniramine and tripelennamine, are the preferred agents to treat allergic rhinitis during pregnancy, and are both category B medications. Newer anti-histamines such as over-the-counter loratadine (Claritin/Alavert and generic forms) and prescription cetirizine (Zyrtec) are also pregnancy category B medications.
Decongestants. Pseudoephedrine (Sudafed, many generic forms) is the preferred oral decongestant to treat allergic and non-allergic rhinitis during pregnancy, although should be avoided during the entire first trimester, as it has been associated with infant gastroschisis. This medication is pregnancy category C.
Medicated nasal sprays. Cromolyn nasal spray (NasalCrom, generics) is helpful in treating allergic rhinitis if it is used before exposure to an allergen and prior to the onset of symptoms. This medication is pregnancy category B and is available over the counter. If this medication is not helpful, one nasal steroid, budesonide (Rhinocort Aqua), recently received a pregnancy category B rating (all others are category C), and therefore would be the nasal steroid of choice during pregnancy.
Immunotherapy. Allergy shots can be continued during pregnancy, but it is not recommended to start this treatment while pregnant. Typically the dose of the allergy shots is not increased, and many allergists will cut the dose of the allergy shot by 50 percent during pregnancy. Some allergists feel that allergy shots should be stopped during pregnancy, given the risk of anaphylaxis and possible danger to the fetus as a result. Other than anaphylaxis, there is no data showing that the allergy shots themselves are actually harmful to the fetus.




