You are called to evaluate a 16-year-old female in respiratory distress 2 hours following a total thyroidectomy for toxic multinodular goiter. She is complaining of difficulty breathing, dysphagia, and neck pain. Her vital signs include heart rate 110 beats per minute, respiratory rate 32 per minute, blood pressure 136/84, and pulse oximetry 92% on oxygen 2 liters per minute via nasal cannula. Physical examination reveals mild neck swelling and increased work of breathing. Which of the following is the MOST likely cause of her current clinical status?