Asthma, allergic rhinitis: useless anti-mite covers?

August2nd,2010

Asthma, allergic rhinitis, anti-mite covers on mattresses and placed the pillows would prove clinically ineffective in the prevention of asthma and allergic rhinitis.

Mites are the essential and ubiquitous allergen. They are involved in allergic skin phenomena, ENT and bronchial. People allergic to dust mites must protect themselves. Far from being infallible, certain eviction actions must be implemented: anti-mite covers to place on the mattress, duvet and pillow, regular washing of bedding, removal of “dust traps” (carpet, plush curtains, carpets), no pet hair, use of product miticide, escape exposure to secondhand smoke, not to mention the general dietary measures.

But this list covers the use of anti-mite may soon disappear after the results of two studies suggesting their lack of effectiveness.

The first focused on 1200 adults with asthma divided into two groups according to whether they used covers. The morning peak expiratory flow (PEF) was determined regularly and the number of patients could reduce their dose of inhaled corticosteroid was recorded in the 6th and 12th month. The concentration of dust mites in mattresses was also analyzed.

The authors note as well that the concentration of mites was significantly lower in patients using bedding covers in the control group at six months, but not at 12 months. The DEP has improved similarly in both groups. And finally, regarding the reduction or discontinuation of corticosteroids, again, no difference was noted.

Finally, as an intervention alone, anti-mite covers seem ineffective in adults with asthma.

The second study was conducted among 230 patients with allergic rhinitis and sensitive to dust mites. During the 12 months of follow-up, the severity of rhinitis was measured and compared to the concentration of mite mattress. The results show that the concentration was actually decreased in the patient environment equipped with covers, compared to control subjects. But despite the reduction of mite allergen exposure related to the use of covers, this measure alone does not improve symptoms of patients.

Pending further evidence to this effect, we can advise patients to carefully observe all preventive measures avoidance of dust mites, and not confined to mere compliance with one of them.

Children with asthma: the fight against allergens and passive smoking is effective!

August2nd,2010

Fighting at home against allergens and passive smoking is bearing fruit. According to the results of a study conducted over two years, children with asthma have fewer symptoms and a gain of 34 days without wheezing.

The urban areas more exposed to indoor allergens and passive smoking. In return, the urban children with asthma suffer from significant complications.

Is it enough to fight at home against allergens to improve conditions for small asthmatics?

To answer this question, a study was conducted among 937 asthmatic children aged 5 to 11 years and residing in various U.S. cities. These young patients had been hospitalized at least once during the last six months or twice led the emergency room for their asthma and had a positive test to an allergen home.

Half of the parents of these children have received the knowledge necessary to fight against environmental factors, focusing on the profile of their child: mites, cockroaches, tobacco smoke, rodents, pets, etc.. They also received training and adequate equipment: waterproof coatings on the mattress and pillow, vacuum cleaner with a special filter, air purifier, etc..

Every six months, the allergens were collected and analyzed at home.
Meanwhile, the number of days with asthma symptoms was recorded: wheezing, coughing, disturbed sleep, reduced activity because of asthma.

Two years later, the authors found fewer days with symptoms in children living in an environment made less allergenic. Of a total of two years, there has been a gain of 34 days without wheezing. In parallel, the domicile of children whose parents have applied the anti-allergen were significantly healthier and reducing allergens was correlated with fewer complications of asthma.

These results demonstrate the effectiveness of measures Allergen avoidance and impact on symptoms of asthmatic children.

Allergic rhinitis promotes asthma

July30th,2010

A person with asthma often suffer from allergic rhinitis, which is an aggravating factor of asthma.But conversely, the patient with allergic rhinitis develop asthma more often. Thus, in case of allergic rhinitis, it is recommended to treat this condition and to seek asthma.

Asthma is an inflammatory disease of the airways, whose expression depends on intrinsic factors (atopy, family predisposition, bronchial hyperresponsiveness …) and environmental (pollen, dust mites, animal dander, pollution, smoking, respiratory infections. ..). More than 300 million people worldwide are affected, including 30 million in Europe, and this condition continues strong growth.

Rhinitis, characterized by inflammation of the airways, is an extremely common disease that affects 25% of the world population and 10-15% of Europeans.

The symptoms are well known: nasal congestion, runny nose, sneezing and sometimes tearing.

But we know that these diseases are often linked. Thus, over 80% of asthmatics also suffer from allergic rhinitis. Moreover, in people with asthma, rhinitis untreated promotes exacerbations of asthma.

Conversely, patients with rhinitis are three times more likely to develop asthma compared to subjects without these conditions.

In conclusion, to prevent the onset of asthma in people with allergic rhinitis, it is necessary to seriously address this latter condition and for the presence of asthma.

Conversely, it is wise to seek an allergic rhinitis in asthma patients and if necessary deal at the same time these two diseases.

Asthma and allergic rhinitis: desensitisation takes place under the tongue

July30th,2010

Desensitization is an effective treatment for some allergies. But because of its limitations and dangers, a new route has been developed: the sublingual route. Still little known, it has many advantages and very precise.

Desensitization or immunotherapy aims, through the administration of increasing doses of allergen to induce a state of tolerance vis-à-vis the allergen. Specifically, the treatment consists of subcutaneous injection of the allergen to which the patient is sensitized.

This technique has some disadvantages, such as the need to inject the allergen, which is not without risk, or requiring the patient to go to every once in a medical office or hospital, just inBecause reactions may occur during the injection.

Admittedly, this method is very effective, but sometimes dangerous. Thus the occurrence of severe anaphylactic symptoms led to a search of other techniques, including other routes of administration.

In recent years, the sublingual appeared. It consists of placing under the tongue of rapidly increasing quantities of allergen in the form of drops or spray, the tablet is currently under study.Allergen concentrations are much higher than those used in desensitization by injection and the optimal dose is reached quickly (15-20 days).

This new method has proved almost as effective as traditional desensitization. In addition, secondary reactions are very rare, if not low, this treatment can be performed at home.

1. The conditions are strict limitation

  • Rhinitis and / or allergic asthma.
  • Be sure of the relationship between exposure to the allergen to which you plan to desensitize and symptoms.
  • the fact that to effectively reduce the allergen in the environment (crowding).
  • Processing single drug ineffective because of the severity of the disease.
  • Commitment to the patient a very good adherence to the long-term desensitization. Indeed, the treatment must be continued over several years, three years on average.

Children: community promotes asthma and allergy

July30th,2010

The community has input into the effect of exposing children to early infections. This exhibition is her protector, for example by inducing a sort of immunity against the officers met before? Or conversely, is it harmful in increasing the risk of allergy and asthma?

1. Allergic manifestations in community

The answer to this question is difficult, so the results of published studies on this subject are contradictory. A new study provides convincing evidence.
This analysis focused on Swedish more than 10,000 children aged 1 to 6 years. Questionnaires were used to gather data on respiratory and allergic symptoms, family environment and the type of care for these children.

2. Increase gross symptoms of asthma and allergy

The conclusion is unequivocal, children cared for in institutions have many more symptoms of asthma and allergies than others. This dramatic increase is especially important in young children 1 to 4 years.
This result is in contradiction with many other epidemiological studies, which are also at the origin of the theory hygienist.

Thus, in the small community kept, allergic symptoms are potentiated in proportions ranging from 12% to 160%:

+ 33% of wheezing
+ 56% of nighttime cough
+ 23% of asthma
+ 15% of rhinitis
+ 75% of hay fever
+49% of eczema
+27% of allergic reactions to food
+160% hay

The type of care is associated with an increased risk of respiratory symptoms, eczema and allergic food reactions. In this study, the community does not give any sign of protection vis-à-vis the allergies in children 1 to 6 years.

In practice, to the extent possible, the development community should not be too early, and this, even if there is family history of asthma and allergy.
And of course, we must ensure that the immunization schedule is up to date …

Mites: but who are these little creatures allergens?

July30th,2010

Mite allergy is most prevalent. At the slightest contact, allergic individuals are most often an attack of asthma or rhinitis. But who are these strange creatures? How do they develop? What other allergic reactions caused by mites?

1. Mite allergy is very common

They belong to the family of arthropods. The house dust mite or mite pyroglyphides are responsible for immediate allergic reactions in susceptible individuals. And people are allergic to these little animals are particularly numerous. The only solution to completely avoid contact with them.

It speaks of allergy to mites, but be aware that allergens are mainly contained in their droppings.

2. Mites: Allergen widespread

The mites are widely present in house dust. Their development depends on temperature and humidity environment. Thus, they proliferate further at a temperature of 25 ° C and when the humidity is between 60 and 80%. The bathroom is thus part locations typically favor the development of mites.

But the mattresses, blankets, duvets and pillows are also places for their development.Especially as the mites feed on scales of our skin that we lose permanently because of constant renewal of our skin cells.

In addition to bedding, they willingly invest sofas, carpets and rugs, stuffed animals, etc..
Note that they disappear at high altitude. From 1,500 m, they are growing.

3. When allergy occurs

Allergy Air: When the mites penetrate the airways, they cause rhinitis or asthma.Both events are sometimes associated with conjunctivitis.
Allergy Skin: contact with mites causes skin eczema.

Food allergy: less frequent and more recently described, results from the ingestion of food contaminated with mites. The contamination is most often of poor preservation of foods and ingredients. Manifestations of allergy are characterized by attacks of asthma, which can lead to anaphylactic shock, and angioneurotic edema (subcutaneous edema, appearing under the skin).

4. Beware of cross-allergy

Allergy sufferers often react to several types of allergens. This is called cross allergies. Regarding allergic to dust mites, they may also have food allergies to snails and shrimp.

Asthma, rhinitis and other allergies

July29th,2010

The frequency and severity of allergies continue to increase. Whether allergic rhinitis, food allergy or asthma, these diseases hinder daily life social and professional issues involved.Update your knowledge.

1) There are different types of rhinitis.
True.
There are allergic rhinitis, but also infectious rhinitis backgrounds for example.

2) Some allergies disappear spontaneously.
True.
But only if 10% of allergies, including food allergies in children with egg and cow’s milk.

3) Most people with asthma also suffer from allergic rhinitis.
True.
Eight out of ten asthma also suffer from allergic rhinitis. Conversely, 25% of people with allergic rhinitis also have asthma. Both diseases can occur simultaneously, but most often rhinitis occurs in isolation for several years before being associated with asthma.

4) We can not diagnose an allergy before the age of 5 years.
False.
The diagnosis of allergy can be performed at any age from what is called an allergy workup.

5) A food allergy may predispose to asthma.
True.
A food allergy is a predisposing factor for asthma.

6) The air pollution is a cause of allergy.
False.
Air pollution and all pollutants including tobacco are factors that aggravate asthma and other respiratory diseases. They are not however the causes of allergy.

7) The allergy can be fatal.
True.
Anaphylactic shock can be fatal in the absence of immediate care. In France, asthma still kills 2,000 people every year.

8) Allergic rhinitis is benign.
False.
It predisposes to asthma and should be diagnosed and supported.

9) rhinitis is called intermittent or persistent.
True.
Rhinitis is called when it occurs intermittently for less than three weeks per year or less than three days in the week.
It is called persistent if it occurs more than four weeks per year and more than four days per week.

10) A food allergy occurs when the first contact with the food.
False.
Except in the case of cross allergies, food allergy occurs after a phase of awareness, that is to say, after having been in contact several times with the food.

11) allergic rhinitis triples the risk of developing asthma.
True.
It is also noteworthy that rhinitis can also aggravate asthma if it is not supported.

12) The food allergens are foods that may cause allergies.
True.
The main food allergens are: eggs, milk, peanuts, dried fruits, exotic fruits, fish, mollusks, crustaceans, soy, spices, condiments and cereals.

Children with asthma or allergies: all school without discrimination!

July28th,2010

Project Home Individual (PAI) proposed the establishment of specific provisions for children with asthma or allergies can go to school like other children. Even if the new school took place one month ago, it is not too late to make this move.

1. Project Home individualized for children with asthma and allergy

Project Home Individual (PAI) is prepared at the request of the family, the director of the school in consultation with the school physician, based on recommendations made by the doctor who follows the child.
The goal is to make the school possible and in good conditions for the child, and for that to facilitate communication between family, doctors and teachers.

The IBP provides four major provisions:

  • The child is allowed to take medication at school (oral, inhaled or injected).
  • If necessary, he can receive appropriate emergency care.
  • Special facilities are provided to improve living conditions at the school.
  • In the canteen, he can receive appropriate meals or a packed lunch prepared by the family.

2. Drugs and emergency care at school

Regarding care in schools, it is advisable to ask the doctor who follows the child to take stock of his condition and his needs, then send an accurate report to the medical school. It is so well informed by a colleague and has written a solid foundation.

The family must prepare and maintain medical kit remains available to the teachers. It must contain the drugs really necessary with the order and be monitored regularly to verify that nothing is missing and renew the expired medicines. It should be simple to use, easy to transport the child to follow her wherever and placed in a location following the methods of storage of drugs (temperature, light, humidity …). Finally, it must include the PAI, emergency protocol and a telephone directory (hospital emergency department, physician, parents).

3. Organization and composition of meals

In case of special dietary requirements, there are several solutions:

  • Parents consult the menu and provide a meal replacement when a dish is risky.
  • Parents provide their own packed lunches.
  • The community makes a specific adaptation: when preparing meals, food is forbidden replaced by another, a sauce is removed, etc..
  • The community provides a menu: command from a provider or specialized agency that is free of allergens.

4. Tips to facilitate the implementation of the IAP

  • Make personal contact with the school principal, the school doctor and communities.
  • Meet the teachers and school staff (canteen, child care …) to inform them precisely specific care and responding to their questions and concerns.
  • Asthma & Allergy Association, recommends to always promote dialogue, cooperation and avoid confrontation. And finally “understand that school is not a place of care, that staff are not health professionals and they have many other pressures to bear.”

Allergies Anti-inflammatory skin

July26th,2010

The gels and creams, anti-inflammatory struggling against some pain, but can cause skin allergies.

Many gels and creams, anti-inflammatory drugs are marketed in France. Some of them have been studies that have shown some effectiveness in the fight against the local pain. They are used in tendonitis of the upper and lower and smaller injuries, including sprains. This is the case of diclofenac (Flector gel ° Voltaren Emulgel ° ° Xenides gel) ibuprofen (° Dolga cream, gel Ibutop °, ° Intralgis gel Syntofène ° gel, Tiburon ° frost), ketoprofen (Ketoprofen RPG ° gel, gel Ketum °, ° Profénid gel Topfen ° frost) and piroxicam (gelden ° frost).

The bufexamac (° Calmaderm cream, cream Parfenac °) and enoxolone (Lelong Irritant · ointment and cream PO 12 °) are also anti-inflammatory, but they are used in the treatment of pruritus (like scratching) when the skin is inflamed.
Some of these drugs are reimbursed by health insurance, but all can be purchased without a prescription from the pharmacist.

1. General side effects are very rare

The amount of drug that enters the bloodstream is very low. And therefore, the risk of systemic adverse effects (eg, stomach ulcer, generalized rash) is less than the risk we take with the same drug, swallowed as a tablet or capsule. However, some (rare) cases of renal disease, asthma or gastrointestinal bleeding have been described after application of an anti-inflammatory effects on the skin. Similarly, some cases of poisoning have been described after application of salicylic acid ointment on skin lesions of psoriasis extended.

2. Eczema in primary

Observations of adverse reactions to anti-inflammatory are regularly published. Ketoprofen (Ketoprofen gel RPG °, ° Ketum gel Profénid ° gel Topfen ° frost) and the drug most often cited.It can cause eczema, which starts at the point where the gel was passed over the skin. The lesions may not appear until the end of treatment (up to 20 days later). The disturbances lasted two weeks on average, and are sometimes severe, even requiring hospitalization.

Relatively many cases of eczema have also been observed with bufexamac (° Calmaderm cream, cream Parfenac °), so that eczema has become one of his cons-official information. But cases have also been reported with all other anti-inflammatory drugs used topically on the skin.

3. Beware of the sun, occlusive dressings, and a history of eczema to anti-inflammatory

The detailed study of some cases has shown the existence of three contributing factors: exposure to sunlight, occlusive dressings, and a history of eczema to anti-inflammatory. In many cases, it is clear that the sun or UV light (including UVA tanning lamps) have been a triggering factor of eczema, with the drug. For example in the case of a woman whose eczema stopped exactly at the place was sheltered from the sun by his sock. You should not use creams or gels, anti-inflammatories in dressings, which increase the penetration of the product, but also the risk of skin irritation and adverse. For the same reason, it is inappropriate to use against the anti-inflammatory on skin irritated, injured or suffering from dermatitis (skin disease).Finally, if anyone has ever had an allergic reaction due to anti-inflammatory, the risk of eczema is increased when taking other anti-inflammatory drug (whether orally or in local form), becausethe chemical relationship of these drugs.

4. It is not always necessary to consult

In case of injury and giving red urge to scratch, appearing in the place where you recently brought a gel or cream, there is every chance that both of eczema. If it is narrow and somewhat embarrassing, but it is not necessarily essential to consult your doctor. It is otherwise if he grows up one day to another, and if the urge to scratch is really painful.

But in all cases, carefully note the name of the drug in question, and do not forget to tell your doctor and pharmacist. They are not too many two to help you think on another occasion, to avoid the same experience is repeated!

Latex allergies are increasing

July26th,2010

The use of latex is very widespread. Think about that in case of allergies and take stock in doubt.

The latex (rubber harvested from rubber trees) is a compound found in new materials such as erasers, glue for envelopes, adhesives, rubber gloves and medical gloves, rubber mattresses,nipples, pacifiers, flippers and snorkels, bathing caps, camera viewfinders, binoculars, some rain gear and some extensive tissue (except Lycra) and condoms … This long list shows that we are all exposed to latex which poses a problem because more and more people are allergic to this material.

1. Skin reactions and respiratory

This allergy is mainly respiratory, speaking by rhinitis, sinusitis or asthma. It may also involve the skin with eczematous dermatitis and urticaria. The more serious forms (angioedema and anaphylactic shock) are rare. The most misleading is that some foods may induce cross-allergy with latex proteins: the case of avocados, chestnuts, bananas and kiwi.

2. Three risk groups

Three groups at risk are individualized.
Health professionals first, because of the extensive use of latex gloves. The allergy that affects 10% of them can be prevented by the use of gloves PVC or synthetic rubber.
Children who have been made many times and have thus been frequently exposed to the gloves of their surgeons, the rate of awareness can then climb to 55%.
The last atopic (those with a predisposition to the field asthma, rhinitis, hives, eczema) that constitute the largest group.

3. Three risk groups

Three groups at risk are individualized.
Health professionals first, because of the extensive use of latex gloves. The allergy that affects 10% of them can be prevented by the use of gloves PVC or synthetic rubber.
Children who have been made many times and have thus been frequently exposed to the gloves of their surgeons, the rate of awareness can then climb to 55%.
The last atopic (those with a predisposition to the field asthma, rhinitis, hives, eczema) that constitute the largest group.

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