| The most familiar cause of hypoxic hypoxia is the low oxygen content of air at high altitude. |
| At necropsy these infants have severe brain swelling and hypoxic injury but little axonal shearing and only a thin subdural haemorrhage. |
| When a person using inhalants becomes hypercapnic and hypoxic by rebreathing from a closed bag, the effects of the inhalant are intensified. |
| Such damage might emerge after cerebellar maldevelopment, or an earlier undetected hypoxic or ischemic event. |
| Seizures are usually due to hypoxic encephalopathy, hemorrhage or cerebral infarction. |
| The presence of carboxyhaemoglobin also diminishes the oxygen held by the normal haemoglobin, which further compounds the hypoxic effect. |
