Chronic rhinosinusitis (CRS) is a common disorder, with up to an estimated 134 million Indian sufferers, and having significant impact on quality of life (QOL) and health costs.

Chronic sinusitis is characterized by symptoms of sinus inflammation lasting >12 weeks. This illness is most commonly associated with either bacteria or fungi infections ^[1].Typically causes nasal congestion, blockage or discharge, and may be accompanied by facial pain or loss of smell. Examination reveals erythematous swollen nasal mucosa with pus ^[2].

 The Task Force of the Rhinology and Paranasal Sinus Committee in 1997 suggested the term rhinosinusitis (RS), instead of sinusitis. ^[3]

In one year, there were up to 73 million restricted activity days in patients with sinusitis. In addition, up to 14.7% of people in one National Health Interview Survey had sinusitis the preceding year. There are higher rates of sinusitis in the South, Midwest, and among women. Children younger than 15 years of age and adults aged 25 to 64 years are affected the most. Genetic factors influence the susceptibility to sinusitis. ^[4]     

Quality of life is patient’s ability to enjoy normal life activities. It is an important consideration in medical care. Some medical treatments can seriously impair quality of life without providing appreciable benefit, whereas others greatly enhance quality of life.

The drastic negative effect of sinusitis on patients’ quality of life has been generally underappreciated and unrecognized. Recent studies show that patients score the effects of chronic sinus disease in areas such as bodily pain and social functioning as more debilitating than diseases such as angina, congestive heart failure, emphysema, chronic bronchitis, and lower back pain, to name a few. In the past, many patients were told they would just have to "live with" their sinus problem

The most widely used patient-reported outcome measures (PROM) for CRS patients is the Sino-Nasal Outcome Test (SNOT) instrument. The SNOT instrument is a collection of several validated instruments (SNOT-16, SNOT-20, SNOT-22) defined by the number of included items. All of the SNOT instruments are derived from the Rhino-Sinusitis Outcome Measure (RSOM-31)

There are many researches available who have tested validity and reliability of the SNOT 22 and have concluded it to be showing good reliability and validity for CRS.^[5]

In the study “Assessment of health -related quality of life in patients with chronic Rhinosinusitis – validation of the German Sino -Nasal Outcome Test 22”concluded that it is reliable, valid and responsive questionnaire to assess symptoms, HRQOL and treatment response in CRS patients. Good psychometric properties were observed^.6]