Can use of a cold light source in endoscopic middle ear surgery cause sensorineural hearing loss?

Terzi S., Dursun E., OZGUR A., COSKUN Z. O., ERDIVANLI O. C., Birinci M., ...More

INDIAN JOURNAL OF OTOLOGY, vol.22, no.3, pp.213-216, 2016 (ESCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 22 Issue: 3
  • Publication Date: 2016
  • Doi Number: 10.4103/0971-7749.187982
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus
  • Page Numbers: pp.213-216
  • Keywords: Audiological surgical procedures, Cold light sources, Tympanoplasty, OTITIS-MEDIA, CHOLESTEATOMA
  • Recep Tayyip Erdoğan University Affiliated: Yes


Objectives: To investigate possible sensorineural hearing loss created by the use of a cold light source in patients undergoing endoscopic tympanoplasty surgery. Materials and Methods: The medical records of 203 patients, who underwent endoscopic Type 1 tympanoplasty surgery in our ear, nose, and throat clinic between 2012 and 2015, were checked retrospectively. Ninety-one patients were male and 112 were female, and their mean age was 34.4 +/- 11.2 years. Results of audiometric measurements performed during the preoperative period and repeated 1 and 3 months postsurgery were compared to each other. Results: The mean duration of the operations was determined to be 52.4 +/- 9.1 min. In addition, average preoperative bone-conduction was 11.4 +/- 7.4 dB nHL. However, it was 9.57 +/- 7.1 dB nHL and 9.51 +/- 7.4 dB nHL, respectively, in the 1st and 3rd postoperative months. Levels of postoperative average bone-conduction at the 1st and 3rd month, as well as the thresholds of bone-conduction at 500, 1000, and 2000 Hz, were significantly lower than the preoperative results (P < 0.05). However, there was not a remarkable difference at 4000 Hz (P > 0.05). Conclusion: Based on our findings, the increased heat generated by the use of a cold light source during an endoscopic tympanoplasty surgery is unlikely to cause the development of sensorineural hearing loss.