Rhinosinusitis

Introduction

RS affects about 31 million subjects in the US per year and is about midway between rhinitis and asthma in frequency. The annual costs are about the same as for asthma, making RS one of the 10 most costly conditions. The underlying causes of RS are shown in Table 1. Allergic rhinitis and non-allergic rhinopathy are the most common underlying causes, but anatomical abnormalities, sensitivity to nonsteroidal anti-inflammatory drugs (NSAID’s) and immune deficiencies are also frequently found.

Symptoms and Severity 

The most common symptoms of acute and chronic RS are shown in Table 5. Patients complaining about these symptoms who are found to have purulent drainage in the nasal cavities or pharynx should be considered as possibly having RS. In most cases, a good history and physical examination, possibly including a rhinoscopic examination, leads the discerning physician to consider RS and initiate empiric treatment. A Computerized Tomography (CT) scan of the sinuses is the “gold standard” for confirming the diagnosis of RS.

The evaluation of RS is quite similar to the approach taken for rhinitis: determining whether the symptoms are acute or chronic; whether the disease involves the nose alone or both the nose and sinuses; whether the patient is allergic or not; whether there is an active infection or an on-going immune inflammatory response; whether to treat empirically or to take cultures from the nose, perform rhinoscopy, order a CT scan, do an immune evaluation, or consult with a surgeon about the need for sinus surgery. These complex evaluations are standard for allergists/ immunologists and are the type of analytic decisions for which the allergist is specifically trained.

Therapeutic Considerations

 If the conclusion is that the patient does have chronic or recurrent RS, the overwhelming majority of patients do very well with careful medical management. The principles of management include medically reducing swelling in the nose, sinus irrigation, topical corticosteroids in the nose and sinuses, appropriate antibiotics, and careful education about the chronic nature of the disease and need for on-going treatment. 

In many instances, medical treatment is chronic and on-going, and aimed at controlling symptoms, but is not curative. Thus, some patients prefer the option of a surgical procedure that might eliminate an anatomical obstruction that could be the cause of RS, in the hope of a definitive cure. The current surgical  approach to RS is functional endoscopic sinus surgery where the functional ostia which drain the sinuses are identified and enlarged. This approach has an impressive 1-2 year incidence of symptom improvement. However, patients with predisposing diseases that originally led to RS still suffer from these processes and often develop RS again at a later date. Medical management is usually required for on-going symptom relief.