Causes of hypoventilation

August 8, 2011 | By | Reply More

Causes of hypoventilation

Airway obstruction
■ Tongue (falling back) or laryngeal spasm
■ Foreign bodies (e.g. tooth, gauze), secretions, blood (due to trauma), vomit (including
particulate matter), tumours
■ Oedema or haematoma following surgery (particularly surgery involving the airway, e.g.
ear, nose and throat (ENT), thyroid surgery).

Central respiratory depression
■ Residual inhalational or intravenous anaesthetic agents
■ Strong analgesics, particularly opioids (e.g. morphine)
■ Hypocapnia
■ Hypothermia
■ Intracranial event (e.g. stroke).

Impaired mechanics of breathing
■ Pain (particularly after abdominal surgery), leading to splinting of the diaphragm
■ Residual effects of muscle relaxants
■ Pneumothorax, haemothorax
■ Obesity, leading to splinting of the diaphragm.

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Category: Medical, Pathology, Surgery

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