What is hematoma complication?

0-30% of cases (if taking AG) Caused by inadequate hemostasis, increased venous pressure at extubation May be superficial or deep (increase pressure in neck, compress on great veins, cause laryngeal edema) Presentation (rapidly expanding hematoma: airway compromise and asphyxation, neck swelling and pain, airway obstruction S&S) Evaluation (PE [examine for swelling], imaging [in case of neck swelling w/out airway compromise], Fiberoptic laryngoscopy [in pt w/out apparent wound hematoma assess vocal cord function) Prevention (avoid thyroid tissue trauma, good intraop hemstasis, avoid neck dressings that mask hematoma, drains don't prevent them, major postop bleed need drain to block, but meticulous hemostasis is used more)