PMC10310404_01
(A, B) Images of the larynx obtained under a light plane of anesthesia following the administration of butorphanol and alfaxalone in the dog 72 h after percutaneous ultrasound guided ethanol ablation of the parathyroid nodule. Inappropriate laryngeal movement was noted, including minimal movement of the arytenoid cartilages on inspiration (A) and complete closure of the cartilages on expiration (B). No significant perilaryngeal edema or secretions obstructing the airway were visualized. Both left and right sides of the larynx were able to move, albeit minimally, and was most consistent with laryngospasm.
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Both left and right sides of the larynx were able to move, though minimal, making the findings of the airway exam most consistent with laryngospasm (Figures 1A, B, Supplementary Video 1).