IMPORTANCE: To the authors' knowledge, no prior studies have examined the association between inferior turbinate hypertrophy (ITH) and extraesophageal reflux (EER). If EER were a cause or cofactor of ITH, antireflux treatment can be considered prior to surgical intervention. OBJECTIVE: To evaluate EER presence and severity in patients with different degrees of ITH. DESIGN, SETTING, AND PARTICIPANTS: Prospective multicentric cohort study conducted at 3 referral centers treating patients with EER and certified for 24-hour monitoring of oropharyngeal pH. The monitoring was performed between October 2020 and October 2021. A total of 94 adult patients with EER symptoms were recruited, 90 of whom were analyzed. INTERVENTIONS: Nasal endoscopy was performed to determine the degree of ITH, according to the Camacho classification. Presence and severity of EER were examined using 24-hour monitoring of oropharyngeal pH. MAIN OUTCOMES AND MEASURES: Primary outcomes were presence of EER according to RYAN Score, total percentage of time below pH 5.5, and total numbers of EER events below pH 5.5. RESULTS: Of the 90 analyzed patients (median [IQR] age, 46 [33-58] years; 36 [40%] male patients), 41 had a maximum of second-degree ITH (group 1), and 49 patients had at least third-degree ITH (group 2), according to the Camacho classification. On the basis of the RYAN Score, EER was diagnosed more often in group 2 (69.4%) than in group 1 (34.1%; difference, 35.3% [95% CI, 13.5%-56.9%]). Moreover, compared with group 1, group 2 exhibited higher median total percentage of time below pH 5.5 (median [IQR], group 1: 2.1% [0.0%-9.4%], group 2: 11.2% [1.5%-15.8%]; difference, 9.1% [95% CI, 4.1%-11.8%]) and higher median total number of EER events (median [IQR], group 1: 6 [1-14] events, group 2: 14 [4-26] events; difference, 8 [95% CI, 2-15] events). Patients with proven EER demonstrated no difference in the degree of ITH between the right and left nasal cavity (Cohen g, -0.17 [95% CI, -0.50 to 0.30]), or between the anterior and posterior parts of the nasal cavity (Cohen g, -0.21 [95% CI, -0.50 to 0.17]). CONCLUSIONS AND RELEVANCE: In this cohort study, patients with a higher degree of ITH had more severe EER. A possible association between severe ITH and EER was demonstrated.

Department of Applied Mathematics Faculty of Electrical Engineering and Computer Science VSB Technical University of Ostrava

Department of Craniofacial Surgery Faculty of Medicine University of Ostrava Ostrava Czech Republic

Department of Otolaryngology Head and Neck Surgery Comenius University University Hospital Bratislava Slovakia

Department of Otorhinolaryngology and Head and Neck Surgery University Hospital Ostrava Ostrava Czech Republic

Fortmedica Prague Czech Republic

JAMA Otolaryngol Head Neck Surg. 2023 Jan 1;149(1):96. doi: 10.1001/jamaoto.2022.3777. PubMed

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