Definition of severity and treatment response in chronic rhinosinusitis with nasal polyps: a Delphi study among French experts

IntroductionThe introduction of biotherapies has significantly changed the management of patients with chronic rhinosinusitis with nasal polyps (CRSwNP). These drugs are generally reserved for severe or recurrent CRSwNP. Thus, the concepts of severity of the disease and treatment response must be mastered by otorhinolaryngologists. However, a clear definition of these concepts in CRSwNP is missing.MethodsThis article focuses on definitions of severity and treatment response in CRSwNP by providing an expert consensus among French rhinologists, using a Delphi study.ResultsThe severity assessment should seek the presence of uncontrolled asthma, olfactory disorders, nasal blockage, impaired quality of life (QOL) and cumulative annual dose of systemic corticosteroids.The treatment response should assess the presence of olfactory disorders, nasal blockage, QOL impairment, response to background therapy, resistance and/or dependence to oral corticosteroids, cumulative annual dose of systemic corticosteroids, response to surgery and to biologics.A failure after polypectomy should not be considered as a failure of surgical management of CRSwNP and must discuss the realization of an extended sinus surgery procedure before the prescription of biologics.ConclusionDefinitions of severity, control of CRSwNP, as well as therapeutic strategies to improve patients' QOL achieved high level of consensus.