Management of Submental Swelling Without Hematoma After Thyroidectomy
Initial Assessment and Monitoring
- The American College of Surgeons recommends using the DESATS criteria (Difficulty swallowing, increased Early warning score, Swelling, Anxiety, Tachypnea, Stridor) for ongoing monitoring of patients with submental swelling after thyroidectomy, as any single DESATS criterion should trigger urgent senior surgical review 3, 1
- Patients should be positioned in a head-up position to optimize airway patency and venous drainage, with supplemental oxygen immediately available 4, 2, 5
Immediate Management Steps
- Hourly observations should be performed for at least the first 6 hours postoperatively, as 72.7% of hematomas requiring reexploration occur within this timeframe 1, 2
- A post-thyroid surgery emergency box must be immediately available containing equipment for opening the neck wound (scalpel, sutures removal kit, wound packing materials) 4, 6, 1
When to Escalate Care
- Immediate senior review is required if there is any progression of swelling, development of any additional DESATS criteria, patient anxiety or discomfort increases, or any change in respiratory pattern 2, 3, 1
- If senior surgical review is not immediately available, arrange senior anesthetic review without delay 4, 2
Pharmacotherapy and Transfer to Higher Level of Care
- Intravenous dexamethasone may improve upper airway obstruction and edema, and tranexamic acid may reduce ongoing bleeding 4
- If patient is stable but ongoing concerns exist, transfer to operating theatre, post-anesthesia care unit, or ICU for closer observation 4
Critical Pitfalls to Avoid
- Drains do not prevent hematoma formation, and clot formation may prevent free drainage while hematoma continues to develop 4, 2, 5
- Stridor is a late sign of airway compromise—intervention should occur well before stridor develops 1, 5
- Desaturation and increasing oxygen requirements are late signs; act on earlier DESATS criteria 3