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ISSN: 1642-5758
Anaesthesiology Intensive Therapy
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vol. 52
Letter to the Editor

Algorithm for management of sudden unexpected extubation in patient positioned in prone position

Tomasz Gaszynski
1, 2

Department of Anaesthesiology and Intensive Therapy, Medical University of Lodz, Lodz, Poland
Airway Management Section of the Polish Society of Anaesthesiology and Intensive Therapy, Poland
Anaesthesiol Intensive Ther 2020; 52, 2: 175–176
Online publish date: 2020/04/27
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JabRef, Mendeley
Papers, Reference Manager, RefWorks, Zotero
Dear Editor,

We read with great interest the case report of Pagano et al. [1] on use of the KingVision videolaryngoscope (VL) in prone position. This case is further proof of the usefulness of VLs in specific condition intubations. There are several papers confirming that VLs can be used for intubation in prone position. We would like to discuss a life-threating situation during general anesthesia such as sudden unexpected extubation in a patient positioned in prone position for example for spine surgery. In this case usually surgical area was covered and the patient has to be positioned in supine position for reintubation.
Several published papers suggest that in this case other action can be performed: use of supraglottic devices (SAD) is well described [2] and use of VLs is also considered as a safe and effective approach [3]. Our clinical experience confirms that thesis. We performed several elective airway management procedures in patients positioned in prone position using SAD and VLs with great success (Figures 1 and 2) with no complications and mean time to achieve ventilation was below 15 s. We used second gene­ration SAD as they are considered to be more effective due to the second seal, preformed shape and possibility of fiberoptic intubation through SAD’s lumen properties. These are for example Ambu Aura Gain, Air-Q or iLTS-D. LMA Supreme can be used as it has a second seal but in case of need for intubation the Aintree intubation catheter has to used, which complicates the procedure. As for VLs it seems that use of channeled VLs is better in those circumstances (for example AirTraq or KingVision) [1, 3, 4]. However, the provider must be an expert in VL intubation to attempt it in the patient’s prone position.
Although there are enough papers to support the usefulness of SADs in prone positioned patients for elective procedures, still there is need for randomized trials on the effectiveness of SADs or VLs in patients with prone position as rescue devices [5]. In the review of Abrishami et al. over half a thousand patients were successfully managed with SADs in adult patients in prone position with a success rate of first pass 87% and second attempt 100% [5].
We assume that there are enough case reports and manikin studies confirming that SADs or VLs can be used as rescue devices for unexpected extubation in patients positioned in prone position [3, 4, 6–9]. Therefore, we would like to propose following...

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