The effects of hypotensive anaesthesia on otoacoustic emissions: a prospective, randomized, double-blind study with objective outcome measures

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• 作者：Ibrahim Aladag ; Ziya Kaya ; Levent Gurbuzler…
• 关键词：Hypotensive anaesthesia ; Otoacoustic emission ; Distortion product otoacoustic emission ; Transient evoked otoacoustic emission
• 刊名：European Archives of Oto-Rhino-Laryngology
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：273
• 期：1
• 页码：73-79
• 全文大小：398 KB
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• 作者单位：Ibrahim Aladag (1)
  Ziya Kaya (2)
  Levent Gurbuzler (3)
  Ahmet Eyibilen (3)
  Murat Songu (1)
  Duzgun Ates (1)
  Unal Erkorkmaz (4)
  
  1. Department of Otorhinolaryngology, Ataturk Training and Research Hospital, Izmir Katip Celebi University, Izmir, Turkey
  2. Department of Anaesthesiology and Reanimation, Tokat Gaziosmanpasa University Medical Faculty, Tokat, Turkey
  3. Department of Otorhinolaryngology, Tokat Gaziosmanpasa University Medical Faculty, Tokat, Turkey
  4. Department of Biostatistics, Sakarya University Medical Faculty, Sakarya, Turkey
  
• 刊物类别：Medicine
• 刊物主题：Medicine & Public Health
  Otorhinolaryngology
  Neurosurgery
  Head and Neck Surgery
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1434-4726

文摘

The aim of the present study was to compare pre- and post-operative otoacoustic emission examinations of patients who experienced surgery under hypotensive anaesthesia using distortion product otoacoustic emission (DPOAE) and transient evoked otoacoustic emission (TEOAE). Forty-one patients, admitted to our tertiary centre for nasal valve surgery, were prospectively and randomly assigned into two groups. Hypotensive group included 20 patients, while control group included 21 patients. All investigators and patients were blinded to anaesthesia assignment throughout the course of the study. DPOAEs and TEOAEs were performed before surgery and repeated after 15 days in both groups. In control group, DPOAE–DP1 levels per frequency increased significantly in the post-operative period when compared with the pre-operative values in all patients. However, DPOAE–DP1 levels decreased significantly in hypotensive group. Similarly, DPOAE–SNR levels per frequency decreased significantly in hypotensive group. In conclusion, we have observed that under the influence of hypotensive general anaesthesia, the amplitudes of OAEs are affected.