Sinonasal Symptom Correlation With the Postoperative Polyp Scale (POPS).

Abstract

Commonly used endoscopic nasal polyp grading scales have been shown to correlate poorly with symptom scores and quality of life metrics. The recently described Postoperative Polyp Scale (POPS) is a grading system that more accurately characterizes polyp recurrence in postoperative sinus cavities by describing incremental recurrence in relation to the surgically opened sinus cavities. The objective of this study was to determine if the POPS correlated with sinonasal symptoms. CRSwNP patients were prospectively administered SNOT-22 questionnaires and graded according to the POPS starting at their 1-month postoperative appointments. Total POPS scores (sum of each side) and Max POPS score (larger value of left and right) were correlated with SNOT-22 total scores and subdomains using Kendall correlation testing. A total of 127 patients were enrolled in the study. Both Total POPS or Max POPS were significantly correlated to the SNOT-22 total score (P < .001, P < .001), Rhinologic (P < .001, P < .001), Extra-Nasal Rhinologic (P < .001, P < .001), Ear/Facial (P < .001, P < .001), and Psychologic (P = .028, P = .017) subdomains. Kendall's tau indicated strong correlation (≥0.3) with Rhinologic subdomain, moderate correlation (.21-.29) with Extra-Nasal Rhinologic and Ear/Facial subdomains, and weak correlation (.1-.19) with Psychologic subdomain. Previous endoscopic nasal polyp grading scales poorly correlate with symptoms and patient reported outcome measures. The new POPS moderately correlates with the total SNOT-22 score and strongly correlates with the Rhinologic subdomain, indicating that it may have good potential as a tool to evaluate postoperative CRSwNP patients.