ORIGINAL RESEARCH
The Effect of Spinal Anesthesia on Cochlear Functions
Spinal Anestezinin Koklear Fonksiyonlara Etkisi
Received Date : 01 Dec 2019
Accepted Date : 07 Jan 2020
Available Online : 14 Jan 2020
Fatma Ceyda AKIN ÖÇALa, Ayşegül CEYLANb
aGülhane Eğitim Araştırma Hastanesi, Kulak Burun Boğaz Hastalıkları ABD, Ankara, TÜRKİYE
bGülhane Eğitim Araştırma Hastanesi, Anesteziyoloji ve Reanimasyon ABD, Ankara, TÜRKİYE
Doi: 10.24179/kbbbbc.2019-72664 - Makale Dili: TR
KBB ve BBC Dergisi. 2020;28(1):30-5
Copyright © 2020 by Turkey Association of Society of Ear Nose Throat and Head Neck Surgery. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
ABSTRACT
Objective: The aim of this study was to investigate the
effect of spinal anesthesia on cochlear function. Material and
Methods: This study included 36 American Society of Anesthesiologists
I-II patients between 18-50 years and who had undergone spinal
anesthesia in the urology clinic with having no contraindications for
spinal anesthesia. The patients had no ear problems before. Distortion
product otoacoustic emissions (DPOAE) were performed three times
(preoperative, postoperative 1st day and postoperative 7th day) for each
patient with normal preoperative pure tone audiometry and tympanometry.
The signal-to-noise ratio (SNR) at 1000, 1500, 2000, 3000,
4000, 6000 and 8000 Hz frequency results were compared with each
other. Results: No significant difference were observed between the
DPOAE signal-to-noise ratios (SNR) measured preoperative and on
days 1 and 7 after spinal anesthesia for both right and left ears (p>0.05).
Only one patient had sudden hearing loss at low frequencies on the first
postoperative day. Intravenous steroid treatment was administered to
the patient. On the 7th postoperative day, hearing loss improved. Conclusion:
Hearing loss is an important complication of spinal anesthesia.
Therefore both the anesthesiologist and the surgeon should inform the
patient about this possible complication.
Keywords: Spinal anesthesia; otoacoustic emission; hearing loss
ÖZET
Amaç: Spinal anestezinin koklear fonksiyonlara etkisinin incelenmesidir.
Gereç ve Yöntemler: Bu çalışmaya, üroloji kliniğinde
spinal anestezi ile opere olan, spinal anestezi açısından kontrendikasyonu
olmayan, Amerikan Anestezistler Derneği I-II, yaş aralığı 18-50
yıl olan, işitme kaybı oluşturacak herhangi bir kulak problemi olmayan
36 hasta dâhil edildi. Preoperatif saf ses odyometrileri (SSO) ve
timpanometrileri normal olan hastalara preoperatif, postoperatif 1. gün
ve postoperatif 7. gün distortion product otoakustik emisyon (DPOAE)
yapıldı. 1000, 1500, 2000, 3000, 4000, 6000 ve 8000 Hz frekanslarında
ölçülen sinyal gürültü oranları [signal-to-noise ratios (SNR) preoperatif,
postoperatif 1. gün ve postoperatif 7. gün birbirleriyle mukayese
edildi. Bulgular: Hastaların preoperatif, postoperatif 1. gün ve postoperatif
7. gün DPOAE 1000, 1500, 2000, 3000, 4000, 6000 ve 8000 Hz
frekanslarında SNR sonuçları karşılaştırıldığında hem sağ hem sol kulakta
istatistiksel anlamlı farklılık izlenmedi (p>0,05). Bir hastada ise
postoperatif 1. günde alçak frekanslarda belirgin olan ani işitme kaybı
gelişti. Hastaya intravenöz steroid tedavisi düzenlendi. Postoperatif 7.
günde işitme kaybının iyileştiği görüldü. Sonuç: İşitme kaybı, spinal
anestezinin önemli komplikasyonlarındandır. Gerek anestezi uzmanı,
gerekse cerrahi işlemi yapacak olan hekimin bu olası komplikasyon
açısından hastayı öncesinde bilgilendirmesi önemlidir.
Anahtar Kelimeler: Spinal anestezi; otoakustik emisyon; işitme kaybı
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