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Sinus

Sinusitis

● Have you ever had a cold or allergy attack that wouldn't go away? If so, there's a good chance you actually had sinusitis. Experts estimate that 37 million people are afflicted with sinusitis each year, making it one of the most common health conditions in America. That number may be significantly higher, since the symptoms of bacterial sinusitis often mimic those of colds or allergies, and many sufferers never see a doctor for proper diagnosis and treatment.

What is sinusitis?
Acute bacterial sinusitis is an infection of the sinus cavities caused by bacteria. It usually is preceded by a cold, allergy attack, or irritation by environmental pollutants. Unlike a cold, or allergy, bacterial sinusitis requires a physician's diagnosis and treatment with an antibiotic to cure the infection and prevent future complications.

Normally, mucus collecting in the sinuses drains into the nasal passages. When you have a cold or allergy attack, your sinuses become inflamed and are unable to drain. This can lead to congestion and infection. Your doctor will diagnosis acute sinusitis if you have up to 4 weeks of purulent nasal drainage accompanied by nasal obstruction, facial pain-pressure-fullness, or both. The sinus infection is likely bacterial if it persists for 10 days or longer, or if the symptoms worsen after an initial improvement.

When does acute sinusitis become chronic?
When you have frequent sinusitis, or the infection lasts three months or more, it could be chronic sinusitis. Symptoms of chronic sinusitis may be less severe than those of acute; however, untreated chronic sinusitis can cause damage to the sinuses and cheekbones that sometimes requires surgery to repair.

What treatments are available?

Antibiotic therapy - Therapy for bacterial sinusitis may include an appropriate antibiotic. If you have three or more symptoms of sinusitis (see chart), be sure to see your doctor for diagnosis. An oral or nasal spray or drop decongestant may be recommended to relieve congestion, although you should avoid prolonged use of nonprescription nasal sprays or drops. Inhaling steam or using saline nasal sprays or drops can help relieve sinus discomfort.

Antibiotic resistance means that some infection-causing bacteria are immune to the effects of certain antibiotics prescribed by your doctor. Antibiotic resistance is making even common infections, such as sinusitis, challenging to treat. You can help prevent antibiotic resistance. One way is to wait up to 7 days before taking antibiotics for mild sinus infections, allowing time for your body to fight the infection naturally. If the doctor prescribes an antibiotic, it is important that you take all of the medication just as your doctor instructs, even if your symptoms are gone before the medicine runs out.

Intensive antibiotic therapy - If your doctor thinks you have chronic sinusitis, intensive antibiotic therapy may be prescribed. Surgery is sometimes necessary to remove physical obstructions that may contribute to sinusitis.

Sinus surgery - Surgery should be considered only if medical treatment fails or if there is a nasal obstruction that cannot be corrected with medications. The type of surgery is chosen to best suit the patient and the disease. Surgery can be performed under the upper lip, behind the eyebrow, next to the nose or scalp, or inside the nose itself.

Functional endoscopic sinus surgery (FESS) is recommended for certain types of sinus disease. With the endoscope, the surgeon can look directly into the nose, while at the same time, removing diseased tissue and polyps and clearing the narrow channels between the sinuses. The decision whether to use local or general anesthesia will be made between you and your doctor, depending on your individual circumstances.

Before surgery, be sure that you have realistic expectations for the results, recovery, and postoperative care. Good results require not only good surgical techniques, but a cooperative effort between the patient and physician throughout the healing process. It is equally important for patients to follow pre- and postoperative instructions.

When should a doctor be consulted?
Because the symptoms of sinusitis sometimes mimic those of colds and allergies, you may not realize you need to see a doctor. If you suspect you have sinusitis, review these signs and symptoms. If you suffer from three or more, you should see your doctor.

Can children suffer from sinus infections?

Your child's sinuses are not fully developed until age 20. However, children can still suffer from sinus infection. Although small, the maxillary (behind the cheek) and ethmoid (between the eyes) sinuses are present at birth. Sinusitis is difficult to diagnose in children because respiratory infections are more frequent, and symptoms can be subtle. Unlike a cold or allergy, bacterial sinusitis requires a physician's diagnosis and treatment with an antibiotic to prevent future complications.

The following symptoms may indicate a sinus infection in your child:

● A "cold" lasting more than 10 to 14 days, sometimes with low-grade fever● Thick yellow-green nasal drainage● Post-nasal drip, sometimes leading to or exhibited as sore throat, cough, bad breath, nausea and/or vomiting● Headache, usually not before age 6● Irritability or fatigue● Swelling around the eyes
If despite appropriate medical therapy these symptoms persist, care should be taken to seek an underlying cause. The role of allergy and frequent upper respiratory infections should be considered.

Tips to prevent sinusitis

As always, an ounce of prevention is worth a pound of cure. To avoid developing sinusitis during a cold or allergy attack, keep your sinuses clear by:
● Using an oral decongestant or a short course of nasal spray decongestant● Gently blowing your nose, blocking one nostril while blowing through the other● Drinking plenty of fluids to keep nasal discharge thin● Avoiding air travel. If you must fly, use a nasal spray decongestant before take-off to prevent blockage of the sinuses, allowing mucus to drain● If you have allergies, try to avoid contact with things that trigger attacks. If you cannot, use over-the-counter or prescription antihistamines and/or a prescription nasal spray to control allergy attacks.● Allergy testing, followed by appropriate allergy treatments, may increase your tolerance of allergy-causing substances. If you believe you may have sinusitis, see our tips for sinusitis sufferers.

Fungal Sinusitis

What Is A Fungus? Fungi are plant-like organisms that lack chlorophyll. Since they do not have chlorophyll, fungi must absorb food from dead organic matter. Fungi share with bacteria the important ability to break down complex organic substances of almost every type (cellulose) and are essential to the recycling of carbon and other elements in the cycle of life. Fungi are supposed to "eat" only dead things, but sometimes they start eating when the organism is still alive. This is the cause of fungal infections; the treatment selected has to eradicate the fungus to be effective.

In the past 30 years, there has been a significant increase in the number of recorded fungal infections. This can be attributed to increased public awareness, new immunosuppressive therapies (medications such as cyclosporine that "fool" the body's immune system to prevent organ rejection) and overuse of antibiotics (anti-infectives).

When the body's immune system is suppressed, fungi find an opportunity to invade the body and a number of side effects occur. Because these organisms do not require light for food production, they can live in a damp and dark environment. The sinuses, consisting of moist, dark cavities, are a natural home to the invading fungi. When this occurs, fungal sinusitis results.

There Are Four Types Of Fungal Sinusitis:
Mycetoma Fungal Sinusitis produces clumps of spores, a "fungal ball," within a sinus cavity, most frequently the maxillary sinuses. The patient usually maintains an effective immune system, but may have experienced trauma or injury to the affected sinus(es). Generally, the fungus does not cause a significant inflammatory response, but sinus discomfort occurs. The noninvasive nature of this disorder requires a treatment consisting of simple scraping of the infected sinus. An anti-fungal therapy is generally not prescribed.

Allergic Fungal Sinusitis (AFS) is now believed to be an allergic reaction to environmental fungi that is finely dispersed into the air. This condition usually occurs in patients with an immunocompetent host (possessing the ability to mount a normal immune response). Patients diagnosed with AFS have a history of allergic rhinitis, and the onset of AFS development is difficult to determine. Thick fungal debris and mucin (a secretion containing carbohydrate-rich glycoproteins) are developed in the sinus cavities and must be surgically removed so that the inciting allergen is no longer present. Recurrence is not uncommon once the disease is removed. Anti-inflammatory medical therapy and immunotherapy are typically prescribed to prevent AFS recurrence.

Note: A 1999 study published in the Mayo Clinic Proceedings asserts that allergic fungal sinusitis is present in a significant majority of patients diagnosed with chronic rhinosinusitis. The study found 96 percent of the study subjects with chronic rhinosinusitis to have a fungus in cultures of their nasal secretions. In sensitive individuals, the presence of fungus results in a disease process in which the body's immune system sends eosinophils (white blood cells distinguished by their lobulated nuclei and the presence of large granules that attract the reddish-orange eosin stain) to attack fungi, and the eosinophils irritate the membranes in the nose. As long as fungi remain, so will the irritation.

Chronic Indolent Sinusitis is an invasive form of fungal sinusitis in patients without an identifiable immune deficiency. This form is generally found outside the US, most commonly in the Sudan and northern India. The disease progresses from months to years and presents symptoms that include chronic headache and progressive facial swelling that can cause visual impairment. Microscopically, chronic indolent sinusitis is characterized by a granulomatous inflammatory infiltrate (nodular shaped inflammatory lesions). A decreased immune system can place patients at risk for this invasive disease.

Fulminant Sinusitis is usually seen in the immunocompromised patient (an individual whose immunologic mechanism is deficient either because of an immunodeficiency disorder or because it has been rendered so by immunosuppressive agents). The disease leads to progressive destruction of the sinuses and can invade the bony cavities containing the eyeball and brain.

The recommended therapies for both chronic indolent and fulminant sinusitis are aggressive surgical removal of the fungal material and intravenous anti-fungal therapy.

Sinus Pain

Why Do We Suffer From Nasal And Sinus Discomfort?
The body's nasal and sinus membranes have similar responses to viruses, allergic insults, and common bacterial infections. Membranes become swollen and congested. This congestion causes pain and pressure; mucus production increases during inflammation, resulting in a drippy, runny nose. These secretions may thicken over time, may slow in their drainage, and may predispose to future bacterial infection of the sinuses.

Congestion of the nasal membranes may even block the eustachian tube leading to the ear, resulting in a feeling of blockage in the ear or fluid behind the eardrum. Additionally, nasal airway congestion causes the individual to breathe through the mouth.

Each year, more than 37 million Americans suffer from sinusitis, which typically includes nasal congestion, thick yellow-green nasal discharge, facial pain, and pressure. Many do not understand the nature of their illness or what produces their symptoms. Consequently, before visiting a physician, they seek relief for their nasal and sinus discomfort by taking non-prescription or over-the-counter (OTC) medications.

What Is The Role Of OTC Medication For Sinus Pain?
There are many different OTC medications available to relieve the common complaints of sinus pain and pressure, allergy problems, and nasal congestion. Most of these medications are combination products that associate either a pain reliever such as acetaminophen with a decongestant or an antihistamine. Knowledge of these products and of the probable cause of symptoms will help the consumer to decide which product is best suited to relieve the common symptoms associated with nasal or sinus inflammation.

OTC nasal medications are designed to reduce symptoms produced by the inflammation of nasal membranes and sinuses. The goals of OTC medications are to: (1) reopen to nasal passages; (2) reduce nasal congestion; (3) relieve pain and pressure symptoms; and (4) reduce potential for complications. The medications come in several forms.

Nasal Saline Sprays: Non-Medicated Nasal Sprays

Nasal saline is an invaluable addition to the list of over-the-counter medications. It is ideal for all types of nasal problems. The added moisture produced by the saline reduces thick secretions and assists in the removal of infectious agents. There is no risk of becoming "addicted" to nasal saline. It should be applied as a mist to the nose up to six times per day. Nasal saline can also be made at home: contact your otolaryngologist for details.

Nasal Decongestant Sprays: Medicated Nasal Sprays

Afrin nasal spray, Neo-Synephrine, Otrivin, Dristan nasal spray, and other brands decongest the swollen nasal membranes. They clear nasal passages almost immediately and are useful in treating the initial stages of a common cold or viral infection. Nasal decongestant sprays are safe to use, especially appropriate for preventing eustachian tube problems when flying, and to halt progression of sinus infections following colds. However, they should only be utilized for 3-5 days because prolonged use leads to rebound congestion or "getting hooked on nasal sprays." The patient with nasal swelling caused by seasonal allergy problems should use a cromolyn sodium nasal spray. The spray must be used frequently (four times a day) during allergy season to prevent the release of histamine from the tissues, which starts the allergic reaction. It works best before symptoms become established by stabilizing the nasal membranes and has few side effects.

Decongestant Medications

Pressure and congestion are common symptoms of nasal passage swelling. Decongestant medications are OTC products that relieve nasal swelling, pressure, and congestion but do not treat the cause of the inflammation. They reduce blood flow to the nasal membranes leading to improved airflow, less breathing through the mouth, decreased pressure in the sinuses and head, and subsequently less discomfort. Decongestants do not relieve drippy noses. Their side effects may include light headedness or giddiness and increased blood pressure and heart rate. (Patients with high blood pressure or heart problems should consult a physician before use.) In addition, other medications may interact with oral decongestants causing side effects. Both of these are available as single products or in combination with a pain reliever or an antihistamine. They are labeled as "non-drowsy" due to a side effect of stimulation of the nervous system.

Decongestant-Combination Products

Some medications are combined to reduce the number of pills. Tylenol® Sinus or Advil Cold and Sinus® exemplify products that join a pain reliever (acetaminophen or ibuprophen) with a decongestant (pseudoephedrine). These products relieve both sinus and cold/flu symptoms yet retain all the attributes of the individual drug including side effects.

Antihistamine Medications
Antihistamines combat allergic problems leading to nasal congestion. OTC antihistamines such as diphenhydramine (Benadryl®), or clemastine (Tavist®) may be used for relieving allergic symptoms of itching, sneezing, and nasal congestion. They relieve the drainage associated with the allergic inflammation but not obstruction or congestion. Antihistamines have a potential for sedation causing grogginess and dryness after use. Newer nonsedating antihistamines are available.

Antihistamine-Decongestant Combination Products

Antihistamines and decongestant products are often combined to relieve multiple symptoms of congestion and drainage and reduce the side effects of both products. Antihistamines produce sedation; decongestants are added to make them "non-drowsy." The combined allergy product then relieves congestion and a runny nose.

Sinus Surgery

The ear, nose, and throat specialist will prescribe many medications (antibiotics, decongestants, nasal steroid sprays, antihistamines) and procedures (flushing) for treating acute sinusitis. There are occasions when physician and patient find that the infections are recurrent and/or non-responsive to the medication. When this occurs, surgery to enlarge the openings that drain the sinuses is an option.

A recommendation for sinus surgery in the early 20th century would easily alarm the patient. In that era, the surgeon would have to perform an invasive procedure, reaching the sinuses by entering through the cheek area, often resulting in scarring and possible disfigurement. Today, these concerns have been eradicated with the latest advances in medicine. A trained surgeon can now treat sinusitis with minimal discomfort, a brief convalescence, and few complications.

A clinical history of the patient will be created before any surgery is performed. A careful diagnostic workup is necessary to identify the underlying cause of acute or chronic sinusitis, which is often found in the anterior ethmoid area, where the maxillary and frontal sinuses connect with the nose. This may necessitate a sinus computed tomography (CT) scan (without contrast), nasal physiology (rhinomanometry and nasal cytology), smell testing, and selected blood tests to determine an operative strategy. Note: Sinus X–rays have limited utility in the diagnosis of acute sinusitis and are of no value in the evaluation of chronic sinusitis.

Sinus Surgical Options Include:

Functional endoscopic sinus surgery (FESS): Developed in the 1950s, the nasal endoscope has revolutionized sinusitis surgery. In the past, the surgical strategy was to remove all sinus mucosa from the major sinuses. The use of an endoscope is linked to the theory that the best way to obtain normal healthy sinuses is to open the natural pathways to the sinuses. Once an improved drainage system is achieved, the diseased sinus mucosa has an opportunity to return to normal.

FESS involves the insertion of the endoscope, a very thin fiber-optic tube, into the nose for a direct visual examination of the openings into the sinuses. With state of the art micro-telescopes and instruments, abnormal and obstructive tissues are then removed. In the majority of cases, the surgical procedure is performed entirely through the nostrils, leaving no external scars. There is little swelling and only mild discomfort.

The advantage of the procedure is that the surgery is less extensive, there is often less removal of normal tissues, and can frequently be performed on an outpatient basis. After the operation, the patient will sometimes have nasal packing. Ten days after the procedure, nasal irrigation may be recommended to prevent crusting.

Image guided surgery: The sinuses are physically close to the brain, the eye, and major arteries, always areas of concern when a fiber optic tube is inserted into the sinus region. The growing use of a new technology, image guided endoscopic surgery, is alleviating that concern. This type of surgery may be recommended for severe forms of chronic sinusitis, in cases when previous sinus surgery has altered anatomical landmarks, or where a patient’s sinus anatomy is very unusual, making typical surgery difficult.

Image guidance is a near-three-dimensional mapping system that combines computed tomography (CT) scans and real-time information about the exact position of surgical instruments using infrared signals. In this way, surgeons can navigate their surgical instruments through complex sinus passages and provide surgical relief more precisely. Image guidance uses some of the same stealth principles used by the United States armed forces to guide bombs to their target.

Caldwell Luc operation: Another option is the Caldwell-Luc operation, which relieves chronic sinusitis by improving the drainage of the maxillary sinus, one of the cavities beneath the eye. The maxillary sinus is entered through the upper jaw above one of the second molar teeth. A “window” is created to connect the maxillary sinus with the nose, thus improving drainage. The operation is named after American physician George Caldwell and French laryngologist Henry Luc and is most often performed when a malignancy is present in the sinus cavity.

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