Patient-reported outcome measures included the rTNSS, standardized Rhinoconjunctivitis Quality of Life Questionnaire, and Nasal Obstruction Symptom Evaluation (NOSE) questionnaires. Follow-up visits occurred at 30 and 90 days postprocedure. Participants were required to have minimum reflective Total Nasal Symptom Scores (rTNSSs) of 4 for total, 2 for rhinorrhea, and 1 for nasal congestion. Adults with moderate/severe symptoms of chronic rhinitis who were candidates for cryotherapy under local anesthesia were enrolled. The predetermined sample size was 61 participants per arm. This study was a prospective, multicenter, 1:1 randomized, sham-controlled, patient-blinded trial. The purpose of this study was to test whether cryotherapy is superior to a sham procedure for reducing symptoms of chronic rhinitis.
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