Valerie J. Lund

Rhinosinusitis: Establishing definitions for clinical research and patient care

Background There is a need for more research on all forms of rhinosinusitis. Progress in this area has been hampered by a lack of consensus definitions and the limited number of published clinical trials. Objectives To develop consensus definitions for rhinosinusitis and outline strategies useful in clinical trials. Methods Five national societies, The American Academy of Allergy, Asthma and Immunology; The American Academy of Otolaryngic Allergy; The American Academy of Otolaryngology Head and Neck Surgery; The American College of Allergy, Asthma and Immunology; and the American Rhinologic Society formed an expert panel from multiple disciplines. Over two days, the panel developed definitions for rhinosinusitis and outlined strategies for design of clinical trials. Results Committee members agreed to adopt the term “rhinosinusitis” and reached consensus on definitions and strategies for clinical research on acute presumed bacterial rhinosinusitis, chronic rhinosinusitis without polyposis, chronic rhinosinusitis with polyposis, and classic allergic fungal rhinosinusitis. Symptom and objective criteria, measures for monitoring research progress, and use of symptom scoring tools, quality-of-life instruments, radiologic studies, and rhinoscopic assessment were outlined for each condition. Conclusion The recommendations from this conference should improve accuracy of clinical diagnosis and serve as a starting point for design of rhinosinusitis clinical trials.

Consensus statement on the treatment of allergic rhinitis.

Allergic rhinitis (AR) is a high-prevalence disease in many developed countries, affecting about 10±20% of the general population (1±5). Several studies based on questionnaire and objective testing or medical examination indicate an increasing prevalence of AR in European countries over the last decades (6, 7). AR is characterized by nasal itching, sneezing, watery rhinorrhoea, and nasal obstruction. Additional symptoms such as headache, impaired smell, and conjunctival symptoms can be associated. According to the time of exposure, AR can be subdivided into perennial, seasonal, and occupational disease. Perennial AR (PAR) is most frequently caused by dust mites and animal dander. Seasonal AR (SAR) is related to a wide variety of pollen allergens including grasses, Parietaria, Ambrosia, Artemisia, birch, olive, hazelnut, and cypress. The morbidity of SAR obviously depends on the geographic region, the pollen season of the plants, and the local climate. Several other conditions can cause similar symptoms and are referred to as nonallergic (noninfectious) rhinitis: NARES (nonallergic rhinitis with eosinophilia syndrome); aspirin sensitivity; endocrine, occupational, postinfectious, and side-effects of systemic drugs; abuse of topical decongestants (rhinitis medicamentosa); and idiopathic rhinitis. Furthermore, diseases such as nasal polyposis, chronic sinusitis, cystic ®brosis, Wegeners disease, benign or malignant tumours, etc. have to be excluded carefully. Therefore, current guidelines (4) emphasize the importance of an accurate diagnosis of patients presenting with rhinitis symptoms. In fact, several causes may commonly coexist in the same *European Academy of Allergology and Clinical Immunology. Allergy 2000: 55: 116±134 Printed in UK. All rights reserved Copyright # Munksgaard 2000

Staging for Rhinosinusitis

Interest in the surgical treatment of chronic rhinosinusitis has increased, primarily because rigid endoscopy and, more particularly, computed tomographic scanning have facilitated the visualization of disease. At the same time it has become both scientifically and financially imperative to audit therapeutic outcome. Consequently, a staging system for nonneoplastic sinus disease is needed. It is clear that any assessment of medical or surgical therapeutic response requires a method of quantifying disease severity that will be widely accepted by practitioners in the field. This acceptance will largely depend on how easy the method is to apply. With computed tomographic scanning it is possible to more accurately determine the extent of the pathologic condition in rhinosinusitis, a disease in which the severity of symptoms and the appearances on nasal endoscopy have a significantly more unpredictable correlation with the extent of disease. One goal of the Task Force on Rhinosinusitis of the American Academy of Otolaryngology-Head and Neck Surgery was to recommend a system for outcomes research that combines quantification with ease of application.

Psychometric validity of the 22‐item Sinonasal Outcome Test

Objectives:  We set out to determine the psychometric validation of a disease‐specific health related quality of life instrument for use in chronic rhinosinusitis, the 22 item Sinonasal Outcome Test (SNOT‐22), a modification of a pre‐existing instrument, the SNOT‐20.

EAACI Position Paper on Rhinosinusitis and Nasal Polyps Executive Summary

OS document, initated by the Academy ofAllergology and Clinical Immunology (EAACI) andapproved by the European Rhinologic Society (ERS), isintended to be state-of-the art for the specialist as well asfor the general practitioner:• to update their knowledge of rhinosinusitis and nasalpolyposis;• to provide an evidence-based documented revision ofthe diagnostic methods;• to provide an evidence-based revision of the availabletreatments;• to propose a stepwise approach to the management ofthe disease;• to propose guidance for definitions and outcomemeasurements in research in different settings.This executive summary focuses on definitions, diagnosisand treatment and the relation to allergy and lowerairway disease. The whole document is published at theEAACI website (http://www.eaaci.org) and in the JournalRhinology (Supplement 18, March 2005).Definition of rhinosinusitis/nasal polypsRhinitis and sinusitis usually coexist and are concurrentin most individuals; thus, the correct terminology is nowrhinosinusitis.In 2001 the WHO put together a working group onrhinitis and its impact on asthma (ARIA) (9). In thisgroup rhinitis was classified according to duration andseverity. Because rhinitis and sinusitis are so closelylinked the definition of CRS/NP in the EPOS document isdeveloped from the ARIA classification of rhinitis andbased on symptomatology, duration and severity ofdisease.The diagnosis of rhinosinusitis is made by a widevariety of practitioners, including allergologists, otolar-yngologists, pulmonologists, primary care physicians andmany others. Due to the large differences in technicalpossibilities to diagnose and treat rhinosinusitis/nasalpolyps by various professions, definitions of CRS/NPshould be tailored to the individual group.Clinical definition of rhinosinusitis/nasal polypsRhinosinusitis (including nasal polyps) is defined as:• Inflammation of the nose and the paranasal sinusescharacterised by two or more symptoms:– blockage/congestion– discharge: anterior/post nasal drip– facial pain/pressure– reduction or loss of smelland either• Endoscopic signs:– polyps– mucopurulent discharge from middle meatus– oedema/mucosal obstruction primarily in middlemeatusand/or• CT changes:– mucosal changes within ostiomeatal complex and/or sinusesSeverity of disease. The disease can be divided intoMILD and MODERATE/SEVERE based on total visualanalogue scale (VAS) score (0–10 cm): MILD ¼ VAS0–4, MODERATE/SEVERE ¼ VAS 5–10.To evaluate the total severity the patient is asked toindicate on a VAS the question:How troublesome are your symptoms of rhinosinusitis?Not troublesome Most troublesome

Evaluation of the medical and surgical treatment of chronic rhinosinusitis: A prospective, randomised, controlled trial

Objectives: To conduct the first prospective, randomized, controlled trial evaluating and comparing the medical and surgical treatment of polypoid and nonpolypoid chronic rhinosinusitis (CRS).

Quantification for Staging Sinusitis

A method of quantifying the symptoms, radiologic data, and endoscopic findings in extensive sinus disease is proposed. It is intended to enable clinicians to classify patients with extensive sinus disease according to severity of disease and prognostic category. The rubric of extensive sinus disease, for scoring and staging, comprises recurrent acute sinusitis and chronic sinusitis, but not an isolated episode of acute sinusitis. The method assigns simple numeric scores to specific computed tomography findings, elements of surgical history, presence of defining symptoms of sinusitis, and endoscopic appearance. This quantitative system may be rationalized into a staging system.

CRANIOFACIAL RESECTION FOR TUMORS OF THE NASAL CAVITY AND PARANASAL SINUSES: A 25-YEAR EXPERIENCE

Craniofacial resection is the established “gold standard” for surgical treatment of tumors affecting the anterior skull base.

The Lund-Mackay staging system for chronic rhinosinusitis: How is it used and what does it predict?

Objectives The Lund-Mackay score is widely used in assessment of chronic rhinosinusitis. We aimed to describe its relationship to other measures of pre- and post-treatment health status. Study Design Multicenter prospective study of 1840 patients undergoing surgery for chronic rhinosinusitis in the UK. Results There was no absolute threshold for surgery, but patients with higher Lund-Mackay scores underwent more extensive surgery. There was no correlation between Lund-Mackay and SNOT-22 scores. The Lund-Mackay increased with increasing grade of polyposis. The Lund-Mackay score was associated with symptom reduction (coefficient = 0.24, P = 0.02) complication rates (odds ratio, 1.08, 95%CI 1.06 to 1.1), and revision rates (odds ratio, 1.03, 95% CI 1.001 to 1.06). Conclusions The Lund-Mackay score measures a different aspect of disease to “subjective” symptom scores. However, it correlates well with other markers of disease severity, the nature of surgery offered, and its outcome. Significance This demonstrates the strengths and limitations of a commonly used staging system.

Implementation of guidelines for seasonal allergic rhinitis: a randomized controlled trial

Background: Allergic rhinitis is a common disease altering quality of life. Its treatment is well established and guidelines have been proposed. However, their efficacy has never been tested. The aim of the study was to validate the guidelines of the International Consensus on Rhinitis in the treatment of seasonal allergic rhinitis.