PMID- 33616224 OWN - NLM STAT- MEDLINE DCOM- 20210920 LR - 20210929 IS - 1531-4995 (Electronic) IS - 0023-852X (Print) IS - 0023-852X (Linking) VI - 131 IP - 9 DP - 2021 Sep TI - Cryosurgical Ablation for Treatment of Rhinitis: Two-Year Results of a Prospective Multicenter Study. PG - 1952-1957 LID - 10.1002/lary.29453 [doi] AB - OBJECTIVES/HYPOTHESIS: To assess the long-term (12-24 months) safety and effectiveness of cryoablation of the posterior nasal nerve as treatment for chronic rhinitis. STUDY DESIGN: A multicenter, prospective, single-arm clinical study. METHODS: The study was conducted from February 2017 to April 2020. Study endpoints included change from baseline in the reflective Total Nasal Symptom Score (rTNSS), Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ), physician assessment of improvement using the Clinical Global Impression-Improvement (CGI-I), and the incidence of treatment-related adverse events. RESULTS: Ninety-one participants completed the study through the initial 12-month study period. Sixty-two participants consented to the long-term follow-up with 57 completing the 24-month follow-up. Significant improvements in the total rTNSS were reflected in a median change from baseline of -3.0 or -4.0 at all timepoints (P < .001). Greater than 80.0% of participants achieved the minimum clinically important difference (MCID) of improvement by >/=1 point on the rTNSS at all follow-ups. Total RQLQ scores indicated significant improvement (P < .0001) in quality of life. Over 77% of participants achieved the MCID (>/=0.5 points) for the total RQLQ score. According to the CGI-I, >/=83.0% experienced improvement at all but the 12-month visit (61.9%). One participant experienced two treatment-related serious adverse events (epistaxis and retained pledget). A total of 29 nonserious treatment-related AEs were reported in 23 participants; most events were transient and resolved with little to no intervention. CONCLUSIONS: Cryotherapy significantly and clinically improves rhinitis symptoms and quality of life with outcomes that are durable through 24 months after treatment. LEVEL OF EVIDENCE: 4 Laryngoscope, 131:1952-1957, 2021. CI - (c) 2021 The Authors. The Laryngoscope published by Wiley Periodicals LLC on behalf of The American Laryngological, Rhinological and Otological Society, Inc. FAU - Ow, Randall A AU - Ow RA AD - Sacramento Ear, Nose, and Throat, Roseville, CA, U.S.A. FAU - O'Malley, Ellen M AU - O'Malley EM AUID- ORCID: 0000-0002-3751-764X AD - Clinical Affairs, Stryker ENT, Plymouth, MN, U.S.A. FAU - Han, Joseph K AU - Han JK AD - Otolaryngology, Eastern Virginia Medical School, Norfolk, VA, U.S.A. FAU - Lam, Kent K AU - Lam KK AD - Otolaryngology, Eastern Virginia Medical School, Norfolk, VA, U.S.A. FAU - Yen, David M AU - Yen DM AD - Specialty Physician Associates, Bethlehem, PA, U.S.A. LA - eng PT - Clinical Trial PT - Comparative Study PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't DEP - 20210222 PL - United States TA - Laryngoscope JT - The Laryngoscope JID - 8607378 SB - IM MH - Adult MH - Aged MH - Chronic Disease MH - Cryosurgery/*adverse effects/methods MH - Female MH - Follow-Up Studies MH - Humans MH - Male MH - Middle Aged MH - Nasal Mucosa/*innervation/pathology MH - Prospective Studies MH - Quality of Life MH - Rhinitis/diagnosis/*psychology/*surgery MH - Safety MH - Surveys and Questionnaires/statistics & numerical data MH - Treatment Outcome PMC - PMC8451775 OTO - NOTNLM OT - Allergic rhinitis OT - chronic rhinitis OT - cryotherapy OT - nonallergic rhinitis OT - posterior nasal nerve cryoablation EDAT- 2021/02/23 06:00 MHDA- 2021/09/21 06:00 PMCR- 2021/09/20 CRDT- 2021/02/22 09:19 PHST- 2021/01/12 00:00 [revised] PHST- 2020/11/24 00:00 [received] PHST- 2021/01/30 00:00 [accepted] PHST- 2021/02/23 06:00 [pubmed] PHST- 2021/09/21 06:00 [medline] PHST- 2021/02/22 09:19 [entrez] PHST- 2021/09/20 00:00 [pmc-release] AID - LARY29453 [pii] AID - 10.1002/lary.29453 [doi] PST - ppublish SO - Laryngoscope. 2021 Sep;131(9):1952-1957. doi: 10.1002/lary.29453. Epub 2021 Feb 22.