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A randomized study of temperature-controlled versus bipolar radiofrequency for inferior turbinate reduction

  • Rhinology
  • Published:
European Archives of Oto-Rhino-Laryngology Aims and scope Submit manuscript

Abstract

The objective of this study is to compare outcomes of temperature-controlled radiofrequency (TCRF) and bipolar radiofrequency (BRF) for inferior turbinate reduction in patients with chronic rhinitis (CR). This was a prospective, randomized non-inferiority trial. Eighty-four adult patients with CR refractory to medication were randomized into two intervention groups: TCRF(42) or BRF(42). Primary outcomes consisted of patient-orientated visual analog scale (VAS; 0–10) of nasal obstruction at 4th postoperative week. Secondary subjective outcomes included VAS of nasal discharge, sneezing, hyposmia, and postnasal drip. Objective outcomes included crusting, mucociliary transportation time, minimal cross-sectional area, total nasal volume, and nasal airway resistance performed by blind assessors before and at 4th postoperative week and 1-year follow-up. Baseline and perioperative data showed no statistically significant difference between both groups, except for longer operative time in TCRF (481.5 ± 36.2 vs. 37.1 ± 3.0 s, p < 0.001) and slightly more crusts in BRF group (p = 0.04). Both intention-to-treat and per-protocol analyses, TCRF(39) versus BRF(41), revealed no significant difference among subjective and objective outcomes between two groups at 4th postoperative week. The 95 % confidence intervals of mean differences of VAS scores of all subjective symptoms were within defined margin (−1.5 to 1.5), except for nasal discharge. At 1-year follow-up, there was still no significant difference in the outcomes. Minimal pain and minor bleeding without serious adverse effects from both interventions were reported. Both BRF and TCRF resulted in similar short-term outcomes, while less operative time was found in BRF group. Further studies, particularly, on cost-effectiveness should be conducted for better treatment selection.

Level of evidence

1b.

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Acknowledgments

The authors would like to thank Ms. Jeerapa Kerdnoppakurn (research assistant) for her data input, Mr. Suthipol Udompunturak (statistician) for the randomization and data analysis, staffs in the Department of Oto-Rhino-Laryngology, Faculty of Medicine Siriraj Hospital, Mahidol University, and all patients who had contributed to this study. Registration number: ClinicalTrals.gov NCT01054521. This study was funded by the Faculty of Medicine Siriraj Hospital, Mahidol University.

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The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Department of Oto-Rhino-Laryngology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand

    Wish Banhiran, Paraya Assanasen, Pongsakorn Tantilipikorn, Nongyoa Nujchanart, Siriporn Voraprayoon & Chaweewan Bunnag

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  1. Wish Banhiran
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  2. Paraya Assanasen
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  3. Pongsakorn Tantilipikorn
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  4. Nongyoa Nujchanart
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  5. Siriporn Voraprayoon
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  6. Chaweewan Bunnag
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Correspondence to Wish Banhiran.

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Banhiran, W., Assanasen, P., Tantilipikorn, P. et al. A randomized study of temperature-controlled versus bipolar radiofrequency for inferior turbinate reduction. Eur Arch Otorhinolaryngol 272, 2877–2884 (2015). https://doi.org/10.1007/s00405-014-3410-y

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  • DOI: https://doi.org/10.1007/s00405-014-3410-y

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