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Do Intubation Devices Affect Middle Ear Pressure Dynamics?

Torun, Mümtaz Taner, MD*; Kuşderci, Hatice Selçuk, MD; Öterkuş, Mesut, MD

Journal of Craniofacial Surgery: June 2019 - Volume 30 - Issue 4 - p 1187–1190
doi: 10.1097/SCS.0000000000005258
Clinical Studies
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Our study aimed to investigate the effects of different intubation devices on middle ear pressure (MEP) dynamics by evaluating MEP during stages of anesthesia.

Sixty-one consecutive patients were randomly assigned to 2 groups: the classical endotracheal intubation group and the Baska Mask (a new laryngeal mask [LMA]) group. All patients received the same anesthesia protocol. The right and left MEP values of the patients were measured and recorded preoperatively, during the induction of anesthesia, at the time of intubation and at 5th minute of anesthesia.

In group 1, the pressure values measured in the right ear during anesthesia induction, at the time of intubation and at 5th minute of anesthesia were 10.97 ± 27.06, 16.77 ± 29.40, and 21.64 ± 90.31, respectively, compared to left ear values of 8.61 ± 26.39, 18.77 ± 37.84, and 38.61 ± 56.96 daPa, respectively. In group 2, MEP values measured in the right ear during anesthesia induction, at the time of intubation, and at 5th minute of anesthesia were 9.53 ± 20.43, 22.30 ± 41.50, and 20.60 ± 46.85 daPa, respectively, compared to left ear values of −4.26 ± 25.17, 6.20 ± 26.56, and 30.30 ± 65.17 daPa, respectively. MEP was statistically significantly increased in the classical endotracheal intubation group compared to the LMA group.

We found that the increase in pressure is lower in patients receiving LMA compared to classical endotracheal intubation. The Baska Mask LMA is recommended in selected patients to prevent complications of MEP elevation.

*Department of Otolaryngology, Head and Neck Surgery. Bandirma State Hospital

Department of Anesthesia and Reanimation, Bandirma State Hospital, Bandirma, Balikesir

Department of Anesthesia and Reanimation. Kafkas University, Kars, Turkey.

Address correspondence and reprint requests to Mümtaz Taner Torun, MD, Department of Otolaryngology, Head, and Neck Surgery, Bandirma State Hospital, Bandirma, Balikesir, Turkey, Çanakkale road 6th km, Bandirma, Balikesir 10200, Turkey; E-mail: mumtaztanertorun@mynet.com

Received 29 October, 2018

Accepted 24 November, 2018

The authors report no conflicts of interest.

The article was not presented in any meeting.

© 2019 by Mutaz B. Habal, MD.