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Penetrating neck trauma

When a neck wound penetrates through the platysma, decide by "hard" and "soft" signs: a hard sign (active bleeding, expanding haematoma, air bubbling from the wound, shock) — theatre; a soft sign — CT angiography; no signs — observation; and above all secure the airway early.

Why it matters in the exam

Questions describe a stab or fragment wound to the neck and test the next step. The modern approach no longer relies only on the "neck zones" (I, II, III) but on clinical signs: a stable patient without hard signs has CT angiography, and its findings guide what follows. A patient with a hard sign goes to theatre without imaging.

Immediate management principles are also tested: do not probe the wound with a finger or instrument beyond the platysma, do not insert a gastric tube, apply direct pressure to bleeding, and a Foley catheter balloon can be inflated in the wound for tamponade. With a large-vein injury there is a risk of air embolism, so cover with an occlusive dressing and lie the patient slightly head-down. A cervical collar is not routine in penetrating injury without a neurological deficit, because it hides an expanding haematoma.

The airway is the most dangerous part: an expanding haematoma, voice change, stridor or subcutaneous air demand early intubation by the most experienced operator, with a surgical airway prepared. Oesophageal injury is often diagnosed late, so when it is suspected CT with oral contrast or endoscopy is done. Strangulation with loss of consciousness or new neck signs also requires CT angiography to look for carotid or vertebral injury.

Key points

Summary table

GroupSignsMeaningAction
Hard signsActive bleeding, expanding or pulsatile haematoma, bruit, shock, air bubbling from the wound, airway obstructionDefinite vascular or aerodigestive injuryTheatre at once
Soft signsStable haematoma, dysphagia, voice change, subcutaneous air, blood in salivaSuspected injuryCT angiography
No signsWound only breaching the platysmaLow riskObservation or CT by judgement
Suspected oesophageal injuryDysphagia, subcutaneous air, blood in salivaLate diagnosis is dangerousCT with oral contrast or endoscopy

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Sources

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Reviewed by the Examqo AI Professor · 2026-11-06. The text may contain errors; when in doubt, check the source.