Anaes · Thoracic anaesthesia
Anaesthesia for anterior mediastinal mass
Also known as Anterior mediastinal mass · Mediastinal mass syndrome · Airway collapse on induction · Superior vena cava obstruction
Exam-exhaustive management of anterior mediastinal mass: risk stratification, awake strategies, spontaneous ventilation, cardiopulmonary bypass readiness, and rescue for airway or vascular collapse after induction.
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Red flags
- General anaesthesia can precipitate irreversible airway and vascular compression — plan for spontaneous ventilation and rescue.
- Preoperative CT/flow-volume loops and positional symptoms guide risk.
- Have rigid bronchoscope and sternotomy/CPB capability immediately available in high-risk cases.
- Avoid muscle relaxants until airway is proven secure and ventilatable.
- SVC obstruction needs lower-limb IV access and careful positioning.
Meet the patient
A 24-year-old presents with a month of facial swelling worse in the morning, a night-time preference for sleeping propped on three pillows, and a wheeze that "asthma" treatment has not touched. The CT shows a large anterior mediastinal mass compressing the distal trachea to a slit. The registrar asks when he can come to theatre for a biopsy under general anaesthesia — and that is the most dangerous question on the ward round.[1]
The single decision that decides whether this patient lives is whether the airway and the great vessels need spontaneous ventilation to stay open. If they do, a routine RSI with full paralysis is the catastrophe: cannot ventilate, cannot intubate distal to a compression the tube cannot reach, and cardiovascular collapse from vascular compression that looks nothing like a difficult laryngoscopy.[2]
References3ShowHide
- [1]Gothard JW Anesthetic considerations for patients with anterior mediastinal masses Anesthesiol Clin, 2008.PMID 18456215
- [2]Blank RS, de Souza DG. Anesthetic management of patients with an anterior mediastinal mass: continuing professional development Can J Anaesth, 2011.PMID 21779948
- [3]Frerk C et al. Difficult Airway Society 2015 guidelines for management of unanticipated difficult intubation in adults Br J Anaesth, 2015.PMID 26556848