Abstract
Purpose
Several studies have been performed using recently developed smartphone-based acoustic analysis techniques. We investigated the effects of septoplasty and turbinoplasty in patients with nasal septal deviation and turbinate hypertrophy accompanied by snoring by recording the sounds of snoring using a smartphone and performing acoustic analysis.
Methods
A total of 15 male patients who underwent septoplasty with turbinoplasty for snoring and nasal obstruction were included in this prospective study. Preoperatively and 2 months after surgery, their bed partners or caregivers were instructed to record the snoring sounds. The intensity (dB), formant frequencies (F1, F2, F3, and F4), spectrogram pattern, and visual analog scale (VAS) score were analyzed for each subject.
Results
Overall snoring sounds improved after surgery in 12/15 (80%) patients, and there was significant improvement in the intensity of snoring sounds after surgery (from 64.17 ± 12.18 dB to 55.62 ± 9.11 dB, p = 0.018). There was a significant difference in the F1 formant frequency before and after surgery (p = 0.031), but there were no significant differences in F2, F3, or F4. The change in F1 indicated that patients changed from mouth breathing to normal breathing. The degree of subjective snoring sounds improved significantly after surgery (VAS: from 5.40 ± 1.55 to 3.80 ± 1.26, p = 0.003).
Conclusion
Our results confirm that snoring is reduced when nasal congestion is improved, and they demonstrate that smartphone-based acoustic analysis of snoring sounds can be useful for diagnosis.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
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Informed consent: Informed consent was obtained from all individual participants included in the study. The study was approved by the Institutional Review Board of Busan Saint Mary’s medical center (Approval No. BSM-2017-06).
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Koo, S.K., Kwon, S.B., Koh, T.K. et al. Acoustic analyses of snoring sounds using a smartphone in patients undergoing septoplasty and turbinoplasty. Eur Arch Otorhinolaryngol 278, 257–263 (2021). https://doi.org/10.1007/s00405-020-06268-1
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DOI: https://doi.org/10.1007/s00405-020-06268-1