Arya Vyshnavam, Praneeth Potluri, Sneha Venkatesan, Saurabh Varshney, Amit Kumar*, Amit Kumar Tyagi, Bhinyaram Jat and Rachit Sood

Department of Otorhinolaryngology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India

*Corresponding Author: Amit Kumar, Assistant Professor, Department of Otorhinolaryngology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India.

Received: December 21, 2022; Published: January 18, 2023

Abstract

Objectives: To evaluate the role of Stroboscopic research instrument in the diagnosis of laryngopharyngeal reflex patients.

Methods: Patients coming to otorhinolaryngology OPD after informed consent were grouped into cases and controls according to the RSI Score (≥13 and < 13, respectively). Matching was performed between cases and controls according to age, sex, and body mass index. All the subjects underwent laryngeal endoscopy and videostroboscopy, and findings were evaluated using the Reflux Finding Score (RFS) and the Stroboscopic Research Instrument (SRI) score, respectively.

Results: For the 86 patients (43 cases and 43 controls) in this study, the mean RFS was 8.60 ± 2.59 among the cases and 4.98 ± 2.45 among the controls. Among the cases, only 76.7% showed a high RFS (≥7). The means SRI score in cases were 79.60 ± 73.85 and in controls were 23.86 ± 41.76. In the SRI, the amplitude, symmetry, duration of closure, and mucosal wave parameters were significantly different between cases and controls. We also found a weak positive correlation between the SRI score and RFS in cases of LPR.

Conclusion: Our study tried to establish the role of SRI in the objective evaluation of LPR patients and found weak correlation between laryngoscopic and stroboscopic findings using standardized instruments. 

Keywords: Laryngopharyngeal Reflux (LPR); Videostroboscopy; Laryngeal Endoscopy; Stroboscopic Research Instrument (SRI); Reflux Symptom Index (RSI); Reflux Finding Score (RFS)

References

1. Koufman JA. “The otolaryngologic manifestations of gastroesophageal reflux disease (Gerd): A clinical investigation of 225 patients using ambulatory 24-hour ph monitoring and an experimental investigation of the role of acid and pepsin in the development of laryngeal injury”. Laryngoscope 4 (1991): 1-78.
2. Bhargava A., et al. “Role of Reflux Symptom Index and Reflux Finding Score in Evaluation of Treatment Outcome in Patients with Laryngopharyngeal Reflux”. International Journal of Phonosurgery and Laryngology 2 (2017): 39-43.
3. Fritz MA., et al. “The Accuracy of the Laryngopharyngeal Reflux Diagnosis: Utility of the Stroboscopic Exam”. Otolaryngology–Head and Neck Surgery (United States)4 (2016): 629-634.
4. Verikas A., et al. “Advances in laryngeal imaging”. European Archives of Oto-Rhino-Laryngology10 (2009): 1509-1520.
5. Dhillon VK and Akst L. “Videostroboscopy, Laryngopharyngeal Reflux, and Dysphonia: A Complex Relationship”. Current Otorhinolaryngology Reports 1 (2016): 49-54.
6. He C., et al. “The utility of narrow band imaging in endoscopic diagnosis of laryngopharyngeal reflux”. American Journal of Otolaryngology5 (2019): 715-719.
7. Rosen CA. “Stroboscopy as a research instrument: Development of a perceptual evaluation tool”. Laryngoscope 3 (2005): 423-428.
8. Peak Woo. “Stroboscopy”. Plural Pub. Hong Kong (2010).
9. Talbot HF. XLIV. Experiments on light. London, Edinburgh, Dublin Philos Mag J Sci. 5.29 (1834): 321-334.
10. Bless DM., et al. “Videostroboscopic evaluation of the larynx”. Ear, Nose Throat Journal7 (1987): 289-296.
11. Bonilha HS., et al. “Parameters and Scales Used to Assess and Report Findings From Stroboscopy: A Systematic Review”. Journal of Voice6 (2018): 734-755.
12. Pribuisiene R., et al. “Perceptual and acoustic characteristics of voice changes in reflux laryngitis patients”. Journal of Voice1 (2006): 128-136.
13. Banjara H., et al. “Demographic and Videostroboscopic Assessment of Vocal Pathologies”. Indian Journal of Otolaryngology and Head and Neck Surgery 2 (2012): 150-157.
14. Belafsky PC., et al. “The validity and reliability of the reflux finding score (RFS)”. Laryngoscope 8 (2001): 1313-1317.
15. Chen M., et al. “Reflux symptom index and reflux finding score in 91 asymptomatic volunteers”. Acta Otolaryngology 7 (2018): 659-663.

Citation

Citation: Amit Kumar., et al. “Evaluating the Utility of Stroboscopic Research Instrument in the Diagnosis of Laryngopharyngeal Reflex".Acta Scientific Otolaryngology 5.2 (2023): 26-30.

Copyright

Copyright: © 2022 Amit Kumar., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.