Cause
Mechanisms
Neck hematoma & Bleeding(1)
- Failure of haemostasis
- Haematoma can causing airway compression
Laryngeal Oedema(1)
- Traumatic intubation
- Complex surgery
- Reduced venous drainage
Tracheomalacia (1)(Rare)
- Sustained compression from large goitre
- Pressure atrophy and erosion of the cartilaginous tracheal rings results in post-operative A-P collapse of the trachea
Laryngeal Tetany due to Hypocalcaemia(1) (Rare)
- Unintended trauma or removal of parathyroid glands
- Severe hypocalcemia can induce tetany and laryngospasm
- Permanent hypocalcemia is rare but transient hypocalcemia seen in up to 20% of patients
- Generally presents at 24-48 hours postoperatively