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.

Complications of surgery for nasal polyposis and chronic rhinosinusitis: the results of a national audit in England and Wales.

Objective: The objective of this study was to determine the rate of complications of surgery for nasal polyposis and chronic rhinosinusitis as well as their risk factors. STUDY DESIGN, SETTING, PARTICIPANTS, AND OUTCOME MEASURES: The authors conducted a prospective study of 3,128 patients who underwent sinonasal surgery during 2000 and 2001 in 87 National Health Service hospitals in England and Wales. Patients completed a preoperative questionnaire that included the Sino-Nasal Outcome Test, a measure of sinonasal symptoms severity and health-related quality of life.