PMC5818707_01
Anesthetic management for oral maxillofacial surgery with SCT. CTM: cricothyroid membrane, SCT: surgical cricothyroidotomy, SGA: supraglottic airway *1: I-gel  (Intersurgical Ltd., Japan), *2: add adrenaline 10 mug per 1 mL, *3: Frova  intubating introducer (COOK Medical, USA), *4: ID 6.0-6.5 mm Parker Flex-Tip  reinforced tube (Parker Medical, Fairfield, NJ, USA)
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Fig1
Airway management was achieved using the protocol for SCT depicted in Fig. 1 for SCT during maxillofacial surgery. At the 5-month follow-up, no adverse symptoms, such as voice change or discomfort, were reported and the surgical scar at the SCT site was already fading (Additional file 1: Figure S1); subglottic stenosis of the larynx was not observed on radiography (Fig. 3a).
PMC5818707_02
X-ray images of the larynx a few months after surgery. No subglottic stenosis was observed in any of the cases. a X-ray image of Case 1 at 5 months after surgery. b X-ray image of Case 2 at 4 months after surgery. c X-ray image of Case 3 at 7 months after surgery
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Fig3
No complication of SCT was observed at the 8-month follow-up (Fig. 3c).
PMC5818707_03
X-ray images of the larynx a few months after surgery. No subglottic stenosis was observed in any of the cases. a X-ray image of Case 1 at 5 months after surgery. b X-ray image of Case 2 at 4 months after surgery. c X-ray image of Case 3 at 7 months after surgery
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Fig3
No complication of SCT was observed at the 8-month follow-up (Fig. 3c).